Copy 3 i

DEPARTMENT OF THE ARMY FIELD MANUAL

ROCKitMM21, TOWED

DEPARTMENT OF THE ARMY . DECEMBER 1953

FM 6-55

FIELD MANUAL[ DEPARTMENT OF THE ARMYNo. 6-55 f WASHINGTON 25, D.C., 16 December 1953

4.5.INCH MULTIPLE ROCKETLAUNCHER M21, TOWED

Paragraphs Page

-CHAPTER 1. GENERAL -------------- 1-3 32. ORGANIZATION ---------- 4, 5 73. SECTION DRILL

Section I. General ------------------- 6, 7 9II. Preliminary commands and

formations --------------- 8-13 10CHAPTER 4. PREPARING THE

LAUNCHER FOR FIRINGAND TRAVELING

Section I. Preparations for firing ------- 14-17 18II. Preparations for traveling --- 18, 19 24

CHAPTER 5. DUTIES IN FIRINGSection I. Indirect laying ------------- 20-24 29

II. Direct fire ---------- 25-27 60CHAPTER 6. TECHNIQUES AND SITU-

ATIONS THAT REQUIRESPECIAL ATTENTION_ 28-39 66

7. BORE SIGHTING ANDBASIC PERIODIC TESTS

Section I. General -- ---- 40-42 82II. Bore sighting ----------- -- 43-46 85

III. Basic periodic tests --------- 47-50 92CHAPTER 8. MAINTENANCE AND IN-

SPECTION ------------- 51-61 1009. DECONTAMINATION OF

EQUIPMENT ----------- 62-65 11210. DESTRUCTION OF EQUIP-

MENT ------------------ 66-68 115.11. SAFETY PRECAUTIONS___ 69-72 117

TAGO 1992C--Nov. 27049'3°-53-1 1

CHAPTER 12. TRAINING Paragraphs Page

Section I. General .]------------------- 73-76 120II. Minimum training schedule___ 77-79 121

III. Tests for qualification of gun-ners --------------------- 80-92 124

APPENDIX REFERENCES ------------ 149INDEX ___________________________ 153

2 TAGO 1992C

CHAPTER 1

GENERAL

1. Purpose and ScopeThis manual is a guide to assist commanders in

developing the sections of towed 4.5-inch multiplerocket launcher M21 (T123) firing batteries intoefficient, smooth-working teams that have a sense ofdiscipline that will impel them to operate effectivelyunder the stress of battle. It prescribes individualduties and section drills, inspection and maintenancedrills, tests and adjustments for sighting and firecontrol equipment, and methods for the destructionand decontamination of equipment.

2. Definitions and Termsa. Section. Tables of organization and equipment

prescribe the personnel and equipment comprisingeach section of a battery (figs. 1 & 2). In this man-ual the term section is often used to designate onlythe personnel required to serve the launcher andequipment of one section.

b. Coupled. A launcher is coupled when it is at-tached to its prime mover.

c. Uncoupled. A launcher is uncoupled when itis detached from its prime mover.

d. Front. For the purpose of conducting drillsprescribed herein, the front of a section, launchercoupled, is the direction in which the prime mover isheaded; launcher uncoupled, the front is the di-

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rection in which the tubes point. However, for de-termining the right or left of the launcher, coupledor uncoupled, the front is the direction in which thetubes point.

e. Right (left). The direction right (left) is theright (left) of one facing to the front.

3. ReferencesPublications pertaining to the 4.5-inch multiple

rocket launcher M21, and auxiliary equipment, cov-ering related matters not discussed in detail in thismanual are listed in appendix I.

6 TAGO 1992C

CHAPTER 2

ORGANIZATION

4. Composition of the Launcher Section

a. The launcher section consists of section person-nel, a 4.5-inch multiple rocket launcher M21, theprime mover, and auxiliary equipment.

b. The personnel of the launcher section consistsof-

(1) A chief of section (CS).(2) A gunner (G).(3) Three rocketeers, numbered from 1 to 3

inclusive (No. 1 is the assistant gunner).(4) A driver (D).

c. Section equipment is listed in T/O & E 6-87 andappropriate SNL's as listed in the appendix.

5. General Duties of Personnela. Ohief of Section. The chief of section is the

noncommissioned officer in command of the entiresection and is responsible to the platoon commanderfor-

(1) Training and efficiency of personnel.(2) Performance of duties listed under section

drill, duties in firing, testing and adjust-ment of sighting and fire control equipment,and inspection and maintenance of all sec-tion equipment, including the prime mover.

(3) Observance of safety precautions.

TAGO 1992C 7

(4) Preparation of field fortifications for pro-tection of equipment, ammunition, and per-sonnel.

(5) Camouflage discipline; local security; andradiological, biological, and chemical se-curity discipline.

(6) Maintenance of the gun book.(7) Police of the section area.

b. Gunner. The gunner is the assistant to thesection chief in carrying out the duties specified in aabove. The gunner's specific duties are prescribedin the appropriate chapters of this manual.

c. Rocketeers. Rocketeers perform duties as listedin this manual, and any other duties that the chiefof section prescribes.

d. Driver. The driver's primary duty is the driv-ing of the prime mover of the section. He also per-forms maintenance and such other duties as are pre-scribed by this manual, by the technical manual forthe vehicle, or as may be prescribed by the chief ofsection.

8 TAGO 1992C

CHAPTER 3

SECTION DRILL

Section I. GENERAL

6. Objective

The objective of section drill is the attainment ofefficiency-maximum precision coupled with highspeed.

7. Instructions

a. To develop maximum efficiency and to preventinjuries to personnel and damage to equipment, thedrills prescribed in this manual must be observed.Section drill should be conducted in silence exceptfor commands and reports. The section must bedrilled until reactions to commands are automatic,rapid, and efficient.

b. Mistakes are corrected immediately. Eachmember of the section must be impressed with the im-portance of reporting promptly to the chief of sec-tion any mistakes discovered after the command tofire has been given. The chief of section will reportmistakes immediately to the platoon commander.

c. Battery officers supervise the drill to insure thatinstructions are carried out and that maximum effi-ciency is obtained.

d. Duties should be rotated during training so thateach member of the launcher section can perform allthe duties within the section. In addition, battery

TAGO 1992C 9

overhead personnel not assigned specific duties dur-ing drill periods should be trained in the funda-mentals of section drill in order that they will becapable of functioning efficiently with a launchersection if required.

Section II. PRELIMINARY COMMANDS ANDFORMATIONS

8. To Form the Sectiona. T'o f'all In. The chief of section takes his post.

On the command of execution the section forms in asingle rank at close interval, centered on and facingthe chief of section at a distance of 3 paces. Highernumbered rocketeers, if present, form in order be-tween No. 3 and the driver. The chief of sectionmay indicate in his preparatory command the placeand direction the section is to form. At the firstformation for a drill or exercise the caution "Aslauncher section(s)" precedes the command. Thecommands are: FALL IN, or 1. IN FRONT (REAR)

OF YOUR LAUNCHER(S), 2. FALL IN; or 1. ON THE

ROAD FACING THE PARK, 2. FALL IN. Execution isas follows: The launcher section moves at doubletime and forms at close interval, at attention, guid-ing on the gunner.

b. To Call Off. The section being in formation, thecommand is CALL OFF. At the command all per-sonnel in ranks except the gunner execute eyes right.The section then calls off in sequence, "Gunner," "1,""2," "3," "Driver." As each man calls out his desig-nation he turns his head and eyes smartly to thefront.

10 TAGO 1992C

9. Posts of the SectionThe command is 1. ROCKETEERS, 2. POSTS. The

command is general and is applicable whether thesection is in or out of ranks and at a halt or march-ing. All movements are executed at double time andare terminated at the position of attention. Highernumbered rocketeers, if present, take posts as pre-scribed by the chief of section.

a. Launcher Coupled. The section moves to postsas shown in figure 3. All personnel face to the frontand are alined 2 feet outside of and parallel to thesides of the prime mover.

b. Launcher Uncoupled, Not Prepared for Action.The section moves to posts as shown in figure 4. Allpersonnel face to the front and are alined 2 feet out-side of and parallel to the wheels, except for thechief of section who stands 3 paces to the rear of thetrail.

c. Launcher Prepared for Action. The sectionmoves to posts as shown in figure 5. All personnelface to the front except the chief of section who facesthe executive unless otherwise indicated.

10. To Change Posts

To acquaint the members of the section with allduties and to lend variety to drill, posts should bechanged frequently. The section being in formnationthe commands are 1. CHANGE POSTS, 2. MARCH, or 1.SECTION, CHANGE POSTS, 2. MARCH.

a. At 1. CHANGE POS'IS, 2. MARCH, all numn-bered rocketeers except No. 3 (or the highest num-bered rocketeer) take two left steps thus placingthem at the post of the next higher numbered rock-eteer. No. 3 moves at double time in rear of the sec-

TAGO 1992C 11

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Figl e 3. APosts of section, lattthcler coupled.

12 TAGO 1992C

Figtre aJr. Posts of section, lautnchler uncoupled, not preparedfor action.

tion to the post of No. 1. All other members of thesection stand fast.

b. At 1. SECTION, ClHANGE POSTS, 2. MARCH, allmembers of the section except the driver (or leftmostmember of the section) take two left steps. Thedriver moves at double time in rear of the section tothe post of the gunner.

TAGO 1992C ,13

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ICs)Figure 5. Posts of section, launl/cher prepared for action.

11. To Mount

The comalnllds are 1. PREPARE TO MOUNT, 2.MOUNT, or MOUNT. If any members of the sec-tion are to remain dismounted, their designations areannounced with the caution "stand fast" given be-tween the preparatory command and the commandof execution. For example: 1. PREPIARE TO MIOUNT,

"driver stand fast" 2. MOUNT.

14 TAGO 1992C

a. 1. PREPARE TO MOUNT, 2. MOUNT. At thepreparatory command, the section moves at doubletime to positions shown in figure 6. At -tlie com-mand of execution, the gunner and rocketeers mountin order and take seats as in figure 7. They areassisted in mounting by the man behind or in frontor by the chief of section and driver to insurepromptness and prevent injuries. Before mounting,the chief of section and the driver verify thlat thelauncher is properly coupled, that personnel andequipment are aboard, and that the tail gate andsafety straps are secure.

b. MOUNT. At the command MOUNT, the sec-tion executes without pausing all that is prescribedfor the commands 1. PREPARE TO MOUNT, 2. MOUNT.

12. To DismountThe commands are 1. PREPARE TO DISMOUNT, 2.

DISMOUNT, or DISMOUNT.a. 1. PREPARE TO DISMOUNT, 2. DISMOUNT. Exe-

cution is as follows: At the preparatory command,members of the section assume positions from whichthey can dismount promptly; at the command ofexecution, they jump to the ground and at doubletime take posts as shown in figure 3.

b. DISMOUNT. At the command DISMOUNT,the section executes without pausing all that is pre-scribed for the command 1. PREPARE TO DISMOUNT, 2.DISMOUNT.13. To Fall Out

a. At Drill. When it is desired to give the per-sonnel a rest from drill or to relieve them tem-porarily from a formation or post, the commandFALL OUT is given. The command may be given

TAGO 1992C 15

Figure 6. Section prepared to mount.

at any time, and infers that the section is to remainin the drill area.

b. When Firing. When firing has.been suspendedtemporarily, but it is desired to have the section re-main in the vicinity of the launcher, the commandFALL OUT is given. Men stand clear of thelauncher to insure that settings and laying remainundisturbed. During these periods the chief of sec-tion may direct his mefn to improve the position, toreplenish ammunition, or to do other necessary work.

16 TAGO 1992C

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Figure 7. Section mounted.

TAGO 1992C 270493°-53-2 17

CHAPTER 4

PREPARING THE LAUNCHER FOR FIRINGAND TRAVELING

Section I. PREPARATIONS FOR FIRING

14. To Uncouplea. The command is UNCOUPLE. At the com-

mand, members of the section take positions as shownin figure 8.

b. Individual duties in the execution of the com-mand UNCOUPLE are as shown in table I.

Figure 8. Section uncoupling (coupling) the launcher.

18 TAGO 1992C

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15. Directiona. Action Front. If the command ACTION

FRONT is given, the chief of section engages theleft handbrake after the launcher is uncoupled. Thegunner with Nos. 1, 2, and 3 then turns the launcher1800 in a clockwise direction and lowers the trailto the ground. Then the chief of section releasesthe handbrake.

b. Action Right (Left). The command is AC-TION RIGHT (LEFT). The movement is execu-ted as in ACTION FRONT, except that after thelauncher is uncoupled, the trail is turned until thelauncher points in the appropriate direction.

16. Movement of Launcher by HandThe commands are 1. LATUNCHER(S) FORWARD

(BACKWARD), 2. MARCH. At the commandLAUNCHER (S) FORWARD (BACKWARD) the trail is liftedby the chief of section and Nos. 2 and 3. The gun-ner and No. 1 operate the left and right handbrakesas necessary and push on the tires to assist in themovement (fig. 9).

17. To Prepare for Action

The launcher being in position uncoupled, thecommand is PREPARE FOR ACTION. If PRE-PARE FOR ACTION has not been ordered by theplatoon commander before the launcher is estab-lished in the firing position, the command is habitu-ally given by the chief of section as soon as thelauncher has been uncoupled. When the section hasattained a high degree of proficiency, the commandUNCOUPLE may be omitted. In this case, atPREPARE FOR ACTION the section will per-

20 TAGO 1992C

Figure 9, Moving the launcher to the rear.

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form the duties prescribed in table I and withouthesitation continue with the duties for PREPAREFOR ACTION as listed in table II. After com-pletion of designated duties, personnel take postsas shown in figure 5. If PREPARE FOR ACTIONis not desired, the caution "do not prepare for ac-tion" must be given.

Figure 10. Disengaging elevating lock.

Section II. PREPARATIONS FOR TRAVELING18. To Prepare for Travel (March Order)

a. To prepare to resume travel, the launcher beinguncoupled and prepared for action, the command isMARCH ORDER. After completion of duties asdesignated in table III, personnel take posts as infigure 3.

b. Exceptions modifying march order duties are:(1) If firing is to be resumed shortly in another

position to which the launcher must be towed

24 TAGO 1992C

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by its prime mover, only such of the opera-tions incident to march order are performedas are necessary for the movement of thelauncher and for the care and security of theequipment.

(2) If the command MARCH ORDER is givenafter the launcher is coupled, the operationspertaining to march order are completed.

(3) If coupling is not desired, a warning is in-cluded in the command as follows: MARCHORDER "do not couple." In this case onlysequences 1 through 4, table III, are per-formed.

19. To CoupleThe command is COUPLE. This command is

given if the launcher is uncoupled and not preparedfor action. The section takes stations as for un-coupling and performs the duties for uncoupling(table I) in reverse.

28 TAGO 1992C

CHAPTER 5

DUTIES IN FIRING

Section I. INDIRECT LAYING

20. Duties of IndividualsThe instructions in paragraph 7 on the conduct of

section drill apply equally to section drill in dutiesin firing. For duties of the battery executive and theplatoon commander see FM 6-140. In general, theduties of individuals in the section in firing are asfollows:

a. The chief of section supervises and commandshis section and is responsible that all duties of thesection are performed properly, all commands exe-cuted, and all safety precautions observed.

b. The gunner loads the launcher, sets the an-nounced deflection and quadrant elevation, centersthe cross-level and longitudinal-level bubbles, lays fordirection and elevation, fires the launcher, and refersthe launcher.

c. No. 1 prepares ammunition, sets fuzes, and as-sists the gunner in loading.

d. Nos. 2 and 3 assist No. 1 prepare ammunitionand assist the gunner in loading.

e. The driver,.after his vehicle is unloaded, isnormally directe d to the truck part designated by thebattery commander, where he remains with his ve-hicle and performs maintenance operations unlessotherwise directed.

TAGO L992C 29

21. Chief of Sectiona. List of Duties.

(1) Assisted by the gunner, lays the launcherfor elevation when the gunner's quadrant isused.

(2) Measures the site to the mask.(3) Measures the elevation.(4) Indicates to the gunner the aiming point.(5) Follows fire commands.(6) Checks electrical contacts and verifies the

proper seating of rounds during loading.(7) Verifies the laying of the launcher and re-

moves the sighting equipment as a unit be-fore firing.

(8) Indicates when the launcher is ready tofire.

(9) Gives the command to fire.(10) Reports mistakes and other unusual inci-

dents of fire to the platoon commander.(11) Conducts prearranged fires.(12) Records basic data.(13) Observes and checks frequently the func-

tioning of the materiel.(14) Assigns duties when firing with reduced

personnel.(15) Verifies the adjustment of the sighting and

fire control equipment.(16) Designates the location of the section am-

munition.(17) Checks, before it is placed in containers, all

ammunition not fired that has been preparedfor firing.

30 TAGO 1992C

b. Detailed Description, of Duties.(1) To lay for elevation when the gunner's

quadrant is used.(a) The command QUADRANT (SO

MUCH) indicates that the gunner's quad-rant is to be used.

(b) An elevation of quadrant 361.8 forexample, is set on the gunner's quadrant(fig. 12) as follows: The upper edge of

the index plate is set opposite the 360mark of the graduated frame, and themicrometer on the index arm is turned toread 1.8. Care must be taken to use thesame side of the quadrant in setting boththe index plate and the micrometer knob.

Figure 12. Settitg the gunnler's quadrant.

TAGO 1iu2C 31

(c) The announced elevation having been seton the gunner's quadrant, and thelauncher loaded, the gunner's quadrant isset on the leveling surface atop the cluster(par. 34). The words line of fire mustbe at the bottom of the quadrant and thearrow pointing in the direction of fire.The chief of section must be sure to usethe arrow which appears on the sameside of the quadrant as the scale that heis using. He stands squarely oppositethe side of the quadrant and holds itfirmly on the leveling surface, parallelto the axes of the tubes. It is importantthat he take the same position and holdthe quadrant in the same manner for eachsubsequent setting.

(d) The chief of section then directs the gun-ner to elevate or depress the launcher un-til the bubble is centered, being carefulthat the last motion is in the direction inwhich it is more difficult to turn the hand-wheel. The chief of section cautions thegunner when the bubble is approachingthe center, in order that the final center-ing may be performed accurately.

(e) Normally, special and calibration cor-rections will be added algebraically at thefire direction center and are includedin the command NO. (SO-AND-SO),QUADRANT (SO MUCH).

(2) To measure site to the mask.(a) The command is MEASURE THE

SITE TO THE MASK. The chief of

32 TAGO 1992C

section has the gunner center the cross-level bubble. Then, sighting along thelowest element of the lowest center tube,he directs the gunner to traverse and ele-vate the cluster until the line of sight justclears the crest at its highest point in theprobable field of fire. He then directsthe gunner to measure the elevation.The chief of section verifies the elevationset on the elevation scale and micrometerand reports to platoon commander, "No.(so-and-so), site to mask, (so much)."

(b) If use of the elevation scale on the tele-scope mount is impractical, the chief ofsection may measure the site to the maskby using the gunner's quadrant on theleveling surface on the cluster.

(c) When the platoon commander announcesthe minimum elevation the chief of sec-tion records it in a notebook and directsthe gunner to chalk the minimum eleva-tion on a convenient place on the launcher.

(3) To measure the elevation. The commandis MEASURE THE QUADRANT ELE-VATION (QUADRANT). The launcherhaving been laid, the chief of section causesthe gunnerto center the cross-level bubbleand the longitudinal-level bubble. Thechief of section then reads the elevation seton the elevation scales and:reports "No.(so-and-so), quadrant elevation, (somuch)." If the command was-MEASURE

.THE: QUADRANT, thg chief of section

TAGO 1992C 270493'-53--3 33

measures the quadrant with the gunner'squadrant and reports "No. (so-and-so),quadrant (so much)."

(4) To indicate to the gunner the aiming point.When an aiming point has been designatedby the platoon commander (FM 6-140),the chief of section will make sure that hehas properly identified the point designated.He will then indicate it to the gunner. Ifthere is any possibility of misunderstand-ing, the chief of section will turn the tele-scope until the horizontal and vertical hairsare on the point designated.

(5) To follow fire commands. The chief ofsection will follow fire commands. He willrepeat the commands as required.

(6) T'o check the electrical contacts and ,erifythe proper seating of the rounds. Beforedirecting that the launcher be loaded, thechief of section inspects each tube to insurethat the tubes are clear and clean and thatthe firing circuits are clean and operable.Each firing circuit is checked with the cir-cuit tester (TM 9-392A). After checkingthe circuits the chief of section removes thefiring switch safety plug from its controlbox socket. He checks to determine thatthe firing circuit is broken and he then di-rects the gunner to load the launcher. Asthe gunner loads the launcher the chief ofsection takes position at the rear of the clus-ter and inspects each round as it is beingseated. He verifies that the safety shortingstrip has been removed, that the spring con-

34 TAGO 1992C

tact (hot) at the top of the tubes and theground contact at the bottom of the tubesare in contact with the round, and that thesealing disk is in place on the back of theround. If deficiencies are found they willbe corrected or the round unloaded andreplaced with another round.

(7) l'o verify the laying of the launcher andremove the sighting equipment before fir-ing. Before firing, the chief of sectionmust habitually check the laying for direc-tion and elevation and then remove thesighting equipment (as a unit) from thelauncher sight mount. He places the sight-ing equipment in the control box and closesand latches the control box cover.

(8) To indicate when the launcher is ready tofire. When the platoon commander can seearm signals of the chief of section, the chiefof section will raise his right arm verticallyupward as a signal that the launcher isready to fire. He gives the signal as soonas the gunner calls "Ready." When armsignals cannot be seen, the chief of sectionreports orally to the platoon commander"No. (so-and-so) ready."

(9) T'o give the comnmand to fire. When the gun-ner can see arm signals made by the chiefof section, the chief of section will give thecommand to fire by dropping his right armsharply to his side (fig. 13). When his armsignals cannot be seen, he commands orallyNO. (SO-AND-SO) FIRE. The chief of

TAGO 1992C 35

t

Figure 13. Chief of section signaling gunner t Are Iucher.

36 TAGO 1992z

section will not give the signal or commandto fire until all personnel are clear of thedanger zone in front, rear, and sides of thelauncher (TM 9-392A).

(10) To report mistakes and other unusual inci-dents of fire to the platoon commander. Iffor any-reason the launcher cannot be fired,the chief of section will report promptlythat fact to the platoon commander, and thereasons therefor; for example, "No. (so-and-so) out, broken lanyard" or "Misfires intubes 7, 8, and 10." Whenever it is discov-ered that the launcher has been fired with amistake in laying, the chief of section willreport that fact at once; for example, "No.(so-and-so) fired 40 mils right." Wheneverthe gunner reports that the aiming posts areout of alinement with the sight, the chief ofsection will report that fact and request per-mission to realine them if the misalinementis due to progressive shifting of the launchercaused by firing. Likewise, he promptly re-ports other unusual incidents that affect theservice of the launcher.

(11) To conduct prearranged fres. Wheneverthe execution of prearranged fires is or-dered, the chief of section will conduct thefire of his section in conformity with theprescribed data.

(12) To record basic data. The chief of sectionwill record data of a semipermanent naturein a notebook. This includes such data asminimum elevations; aiming points used andtheir deflections; prearranged fires when

TAGO 1992C 37

section data sheets are not furnished; safetylimits in elevation and deflection; numberof rounds fired, with the date and hour; andcalibration and special corrections whenappropriate.

(13) To observe and check functioning of themateriel. The chief of section closely ob-serves the functioning of all parts of themateriel during firing. He promptly re-ports to the platoon commander any evi-dence of malfunctioning (TM 9-392A).

(14) To assign duties when firing with reducedpersonnel. Whenever the personnel of thesection serving the launcher is temporarilyreduced in numbers below that indicated inthis manual, the chief of section makes suchredistribution of duties as will best facili-tate the service of the launcher. Under-strength units, loss of cadremen, casualties,and various details will necessitate sectionsoperating with a reduced number of per-sonnel to the extent that it is almost normalfor rocketeers to double up on duties. Whenaround-the-clock firing is to be rendered,rocketeers must split up and work in shiftsso that provision can be made for relief.Two sets of duty combinations are-

(a) Section of four men. Duties which maybe combined are-

Chief of section (no other duty)Gunner (no other duty)No. 1 and No. 2No. 3 and Driver.

38 TAGO 1092C

(b) Section of three mnen.Chief of.section and gunnerNo. 1 and No. 2No. 3 and Driver.

(15) To verify the adjustment of the sightingand fire control equipment. See chapter 7and TM 9-392A for detailed instructions ontesting and adjusting sighting and fire con-trol equipment.

(16) To designate the location of the sectionamnmunition. The location of ammunitionwill normally be determined by the policyof the battery commander. When circum-stances make necessary a departure fromnormal locations, the. platoon commanderwill inform each chief of section of the loca-tion of the ammunition or authorize eachchief of section to select the location for hissection (par. 70).

(17) T'o checck, before it is placed in containers,all ammunition not fired that has been pre-pared for firing. The chief of sectionchecks, before it is placed in containers, allammunition not fired that has been preparedfor firing. He insures that safety shortingstrips have been replaced, that the lot num-ber on the ammunition corresponds to thelot number on the container, and that fuzeshave been handled in accordance with pre-scribed safety precautions (par. 23). It isimperative that all ammunition be returnedto 'its original condition and packaging andthat this ammunition be marked so that itmay be expended before other ammunition

TAGO 1992C 39

is prepared for firing in order that stocksof opened packages may be kept to aminimum.

22. Gunnera. List of Duties.

(1) Loads the launcher.(2) Centers the bubbles on the telescope mount.(3) Sets or changes the deflection.(4) Lays the launcher for direction.(5) Sets the quadrant elevation.(6) Lays the launcher for quadrant elevation.(7) Sets a common deflection on a common aim-

ing point after the launcher has been laid.(8) Refers the launcher.(9) Alines aiming posts.(10) Makes corrections for aiming post dis-

placement.(11) Prepares the launcher for firing and fires

the launcher.b. Detailed Description of Duties.

(1) To load the launcher. Before loading thelauncher the gunner elevates the launcherto 90 to 100 mils elevation to facilitate load-ing. He then stands in front of thelauncher, receives the rockets from therocketeers (fig. 14), and loads them in thetubes (fig. 15). When partially loadingthe launcher, he loads in the order of firingsequence (TM 9-392A). To receive therocket, he grasps the fuze end with his righthand and rests the motor end in his left arm.After inserting the motor end of the rocketin the front of the tube he slides the rocket

40 TAGO 1992C

to its seated position against the stop at therear of the cluster. Rockets must not berarmnled into the tubes against the stops asthis will crush the flange and short therocket. Rockets should be pushed in slowlyand firmly to seat against the stops.

Figure I4,. runner receiving rocket from a rocketeer.

(2) To center the bubbles on the telescopemount. The gunner centers the level bub-bles on the telescope mount as part of alloperations that involve the use of the tele-scope or the telescope mount except as de-scribed for direct fire (par. 27). Thesebubbles are centered prior to using the tele-scope and the level of the mount bubbles isverified before firing.

(3) To set or change the deflection. The gun-ner is taught that turning the azimuth inii-crometer knob in a clockwise directioil in-creases the deflection set on the telescope

TAGO 1992C 41

I Is

F iguore 15. Gunner loading a rocket.

42 TAGO 1992C

and results in moving the tubes to the leftwhen the launcher is laid with the new de-flection. Similarly, he is taught that turn-ing the azimuth micrometer knob in acounterclockwise direction decreases the de-flection and results in moving the tubes tothe right when the launcher is laid. If forexample the command is DEFLECTION2850, the gunner turns the azimuth microm-eter until the azimuth scale is set at 28(2800) and the azimuth micrometer scalereads 50. He then levels the cross-levelbubble and traverses to the aiming point asin (4) below. If a command requires a de-flection change of several hundred mils thegunner sets the deflection by disengagingthe worm gear with his left hand and withhis right hand turns the rotating head ofthe sight to the even hundred mil readingon the azimuth scale. He releases thethrowout lever and with his left hand turnsoff the remaining mils on the azimuthmicrometer scale.

(4) To lay the launcher for direction. The de-flection having been set, the gunner bringsthe vertical hair of the telescope on the aim-ing point by traversing the launcher. Totraverse the launcher the gunner releasesthe traversing handwheel brake, rotates thehandwheel to position the launcher, andthen sets the handwheel brake to preventmovement of the cluster during firing. Ifthe amount of movement necessary isgreater than can be obtained by traversing,

TAGO 1092C 43

the trail must be shifted. To have the trailshifted the gunner commands or signalsCLUSTER RIGHT (LEFT). The rock-eteers remove the wheel and trail stakes andshift the trail so that the cluster moves inthe indicated direction. They stop whendirected to stop by the gunner and then re-place the stakes. The gunner then coin-pletes the laying by bringing the verticalhair of the telescope on the aiming pointby traversing, being careful that the lastmotion is such as to cause the hair to ap-proach the aiming point from the left. Heverifies that the cross-level bubble is level,that the deflection is set, and that the verti-cal hair is still on the aiming point.

(5) To set a quadrant elevation. The gunneris first taught to read quadrant elevationsset and then to set announced quadrantelevations. The scale is read opposite theelevation scale index and the micrometeropposite the micrometer index. The quad-rant elevation is set by turning the eleva-tion knob clockwise to increase the eleva-tion, and counterclockwise to decrease theelevation. The quadrant scale is graduatedinto 100-mil divisions and is numberedevery 200 mils.' The elevation micrometerscale on the elevation knob is graduatedin 2-mil divisions and is numbered every10 mils. It has two successive scales of 100mils each. One complete turn of the eleva-tion micrometer makes a 200 mil change inthe elevation setting. The gunner grasps

44 TAGO 1992C

the elevation knob in his right hand andturns it until the announced elevation isshown, making sure that the last motion isin the direction of increasing elevation. Hemust interpolate to set quadrant elevationsending in odd numbers. To set a commandof QUADRANT ELEVATIO()N 273, thegunner rotates the elevation knob in theappropriate direction until the space be-tween 200 and 300 on the scale is oppositethe index. He refines the setting by turn-ing the elevation knob until 73 is oppositeits index (fig. 16). The last motion shouldalways be in the direction of increasingelevation.

Note. Interpolation between 72 and 74 is neces-sary in this case.

(6) T'o lay the launcher for quadrant elevation.The quadrant or quadrant elevation havingbeen set, the gunner levels the longitudinal-level bubble or the bubble on the gunner'squadrant by elevating or depressing thetube cluster with the elevating handwheel.The last motion of the cluster is in the di-rection in which it is most difficult to turnthe handwheel. To elevate the cluster hereleases the elevating handwheel brake, ro-tates the elevating handwheel to set thelauncher at the desired elevation, and thensets the elevating handwheel brake to pre-vent movement of the cluster during firing.

(7) To set a common deflection on a commonaiming point after the launcher has been

TAGO 1992C 45

Figure 16. Quadrant elevation 27S.

laid. The launcher having been laid, theplatoon commander may command AIM-ING POINT, CHURCH STEEPLE, RE-FER. At this command without movingthe cluster, the gunner opens the door (fig.17), turns the sight to the aiming pointdesignated, records, and reports the deflec-tion to the platoon commander. The pla-toon commander then commands COMMONDEFLECTION 2800. At this commandthe gunner loosens the wing nut to release

46 TAGO 1992C

Figure 17. Opening the door.

the index ring (fig. 18). He slips the in-dex ring until the index is opposite 2800on the outer azimuth scale (fig. 19), closesthe door, and tightens the wing nut. Tobring the azimuth micrometer scale to zero,the azimuth micrometer slipping clamp isloosened (fig. 20), the azimuth micrometerscale slipped to zero (fig. 21), and the clampis tightened. This done, the gunner mustrecheck to verify that the sight is set at2800 exactly, that the cross-level bubble islevel, and that the line of sight is still onthe aiming point. The gunner then re-ports, "No. (so-and-so), deflection 2800."

(8) To refer the launcher. To refer thelauncher, the command is AIMING POINT(SO-AND-SO), REFER. Without dis-

TAGO 1992C 47

Figure 18. Loosening tie uwing nut to release the index ring.

turbing the position of the cluster, the gun-ner levels the bubbles and brings the verti-cal hair of the telescope on the designatedaiming point (referring point). He, then

48 TAGO 1992C

Figure 19. Slipping the index riny index to 2800.

checks the level bubbles and reads and an-nounces the deflection set. Two referringpoints ordinarily are used, one for day andthe other for night. A referring pointshould be at least 50 yards from the tele-scope. Normally, the aiming posts will be

TAGO 1992C 270493 °-53--4 49

used as referring points, particularly atnight. The gunner records the deflectionand referring point in current use on a con-venient part of the launcher.

(9) To aline the aiming posts. The launcherhaving been laid the platoon commandermay command AIMING POINT, AIMING

Figure 20. Loosening the azimuth micrometer slippingclamp.

50 TAGO 1992C

Figure 21. Slipping the azimuth micrometer scale to zero.

TAGO 1992C 51

POSTS, DEFLECTION 2800, REFER.At this command the gunner sets the sightat deflection 2800 and, with hand signals,directs No. 3 in the alinement of the posts(par. 29) with the vertical hair of the reticle(fig. 11). If, because of the nature of theterrain, the posts cannot be set out at de-flection 2800, the gunner turns the azimuthmicrometer knob until the outer azimuthscale is on another even hundred-mil gradu-ation where the posts can be set out. Healines the posts at this new deflection. Thechief of section reports the altered deflectionto the platoon commander, "No. (so-and-so)aiming posts at (so many hundred), de-flection 2800 in lake (or other reason)."The platoon commander will then commandNO. (SO-AND-SO) DEFLECTION 2800.At this command the gunner loosens thewing nut, and slips the index ring to 2800.He tightens the wing nut and verifies theadjustment.

(10) 'To make corrections for aiming post dis-placement. For details of correcting foraiming points displacement, see para-graph 29.

(11) To prepare the launcher for firing and tofire the launcher. The gunner insures thatthe control box cover is closed and latched.He rotates the firing switch index pointerto engage the shaft and sets the pointer atthe desired position (TM 9-392A). He at-taches the lanyard to the firing switch lever(fig. 22), insuring that the lanyard has

52 TAGO 1992C

been extended its full 50-foot length to theside. To fire the launcher from the leftside, the lanyard is clipped to the upperhole in the firing switch lever and is placedin the left guide. To fire the launcher fromthe right side, the lanyard is clipped to thelower hole in the firing switch lever and isplaced in the right guide. After he makescertain that all personnel are clear of thedanger zone, he inserts the firing switchsafety plug in its control box socket in theposition that corresponds to the type of elec-trical power to be used (generator or bat-tery). He stations himself at the end ofthe lanyard (fig. 13), calls "Ready," andat the command of the chief of section tofire, pulls the lanyard in rapid successivepulls until the ripple has been fired. Tooperate the firing switch generator fastenough to provide current for firing, thelanyard must be given quick pulls. Eachpull of the lanyard must operate the firingswitch lever to its stopping point to assureproper firing switch operation and properindexing of the firing switch distributor.For speed in firing the gunner may use arhythmic up and down waving motion ofhis arm. The necessary pull is exerted atthe top and bottom of the motion while thelever is allowed to recover at the middle ofthe arc described by the waving motion.Each pull of the lanyard fires one rocketand positions the firing switch for firing thenext rocket. In the event of misfires pro-

TAGO 1992C 53

ceed as prescribed in paragraph 71. If nomisfire occurred remove the firing switchsafety plug from the control box socket.

Figure 22. Attaching lanyard to firing switch lever.

23. No. 1

a. List of Duties.(1) Examines rockets.(2) Fuzes rockets.(3) Makes the prescribed setting of fuzes.(4) Passes ammunition to gunner.(5) Cleans and inspects the tubes.(6) Removes fuzes from rockets.

54 TAGO 1992C

b. Detailed Description of Duties.(1) To examine rockets. No. 1, assisted by Nos.

2 and 3, removes the packing and inspectsthe rocket for serviceability (TM 9-1950).He examines the rocket to see that the plas-tic closing disk is in place and that the rocketis free of foreign matter, sand, mud, mois-ture, frost, snow, ice, or grease. If rocketsare dirty or wet they should be wiped offwith a clean, dry cloth. If the plastic clos-ing disk is loose, it may be replaced and therocket fired if it can be ascertained that nomoisture or foreign matter has entered themotor. Should evidence be found of mois-ture corrosion which would adversely affectthe igniter or propellant, the rocket shouldbe disposed of as unserviceable.

(2) T'o fuze rockets. With the rocket on its side,No. 1 loosens the setscrew in the adapter(when present) with a screwdriver or theend of the fuze wrench. Using the appro-priate fuze wrench or any suitable wrench,he unscrews the nose plug and examines thefuze threads and cavity in the rocket head;examines for the presence of the supple-mentary charge; and if necessary removesthe cardboard spacer. If the supplementarycharge is required and none is present, No.1 inserts the charge with the felt-pad endinnermost and the lifting cloth tape loopoutermost. If the charge is present and notrequired, No. 1 removes the charge. He thenremoves the fuze from its packing and ex-amines the fuze threads to insure that they

TAGO 1992C 55

are in good condition. Components withdamaged threads are not used. He screwsin the fuze by hand. If binding occurs No.1 reinspects the fuze cavity and the threadsof both the rocket head and the fuze, reject-ing whichever is at fault. Next, he tightensthe fuze securely to the rocket head usingthe appropriate fuze wrench (fig. 23). Fuzewrench M7A1 or M18 may be used for tight-ening the point-detonating fuze but only thespecial fuze wrench M18 issued with boxesof VT fuzes may be used to tighten VTfuzes. He uses only such force as can beapplied by hand to the fuze wrench handle.If the fuze cannot be tightened to form agood seat between the shell and fuze, thecomponent at fault is rejected. Do not usea hammer or an extension handle on thefuze wrench; use only manual force. Fi-nally, No. 1 tightens the setscrew firmly inthe adapter, if one is present.

(3) To set fuzes. When using point detonatingfuze, if the command is FUZE QUICK No.1 verifies that the slot on the setting sleeveis alined with the letters S. Q. If the com-mand is FUZE DELAY he turns the slotto aline with the word DELAY (fig. 24).He resets to S. Q. any unfired fuzes thathave been set to DELAY. No. 1 turns theslot to the appropriate index mark by usingthe screwdriver end of the fuze wrench ora similar tool. In the dark this can be doneby feeling the position of the slot.

56 TAGO 1992C

Figure 23. Fuzing a rocket.

(4) To pass ammunition to the gunner. Therocket is passed to the gunner (fig. 14) sothat he is able to grasp the fuze end in his

TAGO 1992C 57

Figure 24. Settirg a fuze.

Figure 24. Setting a fuze.

58 TAGO 1992C

right hand and support the motor end inhis left arm.

(5) To clean and inspect the tubes. No. 1 willclean the tubes when directed to do so. Heinspects the tubes after each ripple is firedand reports misfires. Checking the tubesafter firing is done from a position to theside of the launcher rather than from thefront or rear.

(6) To remove fuzes from rockets. If for anyreason a projectile that has been fuzed is notto be fired, the fuze is removed. The opera-tion of inserting a fuze is reversed. Sup-plementary charges will be replaced, pro-vided the projectile was issued with thecharge. Booster cotter pins, if required,are replaced. Point detonating fuzes arereset to superquick ((3) above). All fuzesare returned to their original condition andpacking and marked for priority use in or-der that opened packages will be kept to aminimum. The nose plugs are replaced inthe fuze sockets of the rockets.

24. Nos. 2 and 3a. List of Duties.

(1) Remove ammunition from containers.(2) Assist No. 1 in preparing ammunition for

firing.(3) Pass ammunition to gunner.(4) Sets out aiming posts (No. 3).

b. Detailed Description of Duties.(1) To remove ammunition from containers.

When directed to do so, Nos. 2 and 3 remove

TAGO 1992C 59

ammunition from containers. Only the re-quired number of rockets and fuzes shouldbe opened because explosives, especiallyrocket propellants, are adversely affected bymoisture and high temperature. As therockets are unpacked they are arranged on aclean tarpaulin with the nose plugs facingin the direction which would result in theleast damage should the propellant be ac-cidentally ignited. Packing is not disposedof until after the rockets have been firedbecause unfired rockets must be restored totheir original condition and packing (TM9-392A).

(2) To assist No. 1 in preparation of ammuni-tion for firing. Nos. 2 and 3 assist No. 1in fuzing and inspecting rockets (fig. 23)and they remove the safety shorting stripsfrom rockets before they are carried to thegunner for loading.

(3) To pass ammunition to the gunner. Nos. 2and 3 pass ammunition to the gunner asprescribed for No. 1 in paragraph 23.

(4) To set out aiming posts. No. 3 sets outaiming posts as directed by the gunner(par. 29).

Section II. DIRECT FIRE

25. General

Direct fire is not considered a normal role for themultiple rocket launcher. Should the necessity todefend the position arise, however, sections must betrained in the method of delivering direct fire.

60 TAGO 1992C

Training for direct laying is based on the same tech-nique involved in indirect laying. Enemy targetstaken under direct fire by the section are usuallythose capable of returning fire on the launcher sec-tion at point-blank range, therefore, the speed andaccuracy required in indirect laying becomes evenmore important for direct fire missions. In staticsituations plans for position defense should be pre-arranged, making each section responsible for thedefense of an assigned sector. The section will op-erate as an independent unit in the defense of itsassigned sector. In addition to defending his ownsector, the chief of section should be prepared to fireon targets in other sectors as well. The sectors offire for the launcher should, if possible be cleared ofall obstructions that might endanger battery person-nel when the launchers are fired or that might hinderobservation. Care should be taken that such clear-ance does not give away location of the position.

26. Range CardWhen the section occupies a position for a period

longer than that required to prepare the launcherand fire the mission, the chief of section should pre-pare a range card (fig. 25). As soon as possible aftermoving into the position, the chief of section meas-ures or estimates the ranges to critical points in likelyavenues of approach, for enemy personnel and ve-hicles. He notes these ranges and their correspond-ing quadrant elevations on the card. If there are noprominent terrain features, stakes may be driven intothe ground at critical points for reference. As timepermits, the range card is improved by replacingestimated ranges with more accurate data obtained

TAGO 1992C 61

by pacing, taping, vehicle speedometer reading, mapmeasurement, or other survey.

XRN \/ ___-" HILL

Fig ire 25. Range card.

27. Conduct of Fire

a. Prior Planning. Firing should be prearrangedto include the number of rockets to be fired, the tubesto be loaded, the elevation at which the launchers willbe laid, and if possible the direction of fire.

b. Targets for Direct Laying. Targets for directlaying usually consist of hostile vehicles, tanks, andpersonnel threatening the position. Enemy person-nel, whether alone or accompanying tanks, will

seldom present themselves as a clearly defined target.Normally, attacking troops, using all available cover,reveal themselves only fleetingly. Accordingly fireis conducted on the area containing the attackers

6TAGO 1992C62 TAGO 1992e

rather than up)on the individuals. Tanks usuallyattack in groups and may be accompanied by infan-try. Normally, first priority is given to attack ofthose targets within the assigned sector of theweapon and second to targets in other sectors.

c. Fuzes. Fuze quick is the most desirable fuzeto use for close-in fires. It is effective and requires nofuze setting. VT fuzes are impractical for close-infire and will seldom, if ever, be used for direct fire.

d. Commands. The command to open fire ondirect fire targets comes initially from the platooncommander. He commands TARGET (SO-AND-SO), FIRE AT WILL, or simply FIRE AT WILL.The chief of section takes direct control of the firesof his section and gives the necessary commands totake the target under fire.

e. Duties. Direct fire duties are the same as thoseprescribed for indirect fire except that in the interestof speed the chief of section may perform some of thegunner's duties. Firing will be expedited if thechief of section lays the launcher for deflection andelevation.

f. Techniques. The nature of the target and thetime available will dictate the technique to be em-ployed in direct fire.

(1) Area targets. Targets that have no specificpoint at which to aim may be laid on fordirection by using the open sight on thesight mount or by sighting over the tubes.This method of laying for direction coupledwith setting the quadrant elevation cor-responding to the estimated range to thetarget area is the most expeditious means ofdelivering direct fire.

TAGO i992C 63

(2) Point targets. For targets that are clearlydefined, the telescope should be used. It isnecessary to zero the telescope so that itsline of sight is alined with the axes of thetubes. If neither the azimuth micrometerscale nor the index ring has been slipped,the chief of section brings them to zero. Ifonly the index ring has been slipped to placethe launcher on a common deflection, thedoor is opened and zero of the inner azimuthscale is brought to the inner index and thezero of the azimuth 'micrometer scale isalined with its index. If the index ring andthe azimuth micrometer scale have both beenslipped, the sight may be referred to theoriginal aiming point; the door is opened;the azimuth micrometer slipped to reset theoriginal (par. 22b (7)) deflection on thesight; and then the azimuth micrometer andinner azimuth scale brought to zero. If ascribed line has been made on the azimuthmicrometer knob (par. 42), the door may beopened, the inner azimuth scale turned tozero, and the scribed line on the azimuthmicrometer knob alined with the index. Forlaying on a stationary target with the sightzeroed the chief of section lays the launcherwith the vertical hairline exactly on the-target. For a moving target, the chief ofsection estimates the lateral speed of thetarget and sets the appropriate lead on theazimuth micrometer scale before -bringingthe vertical hair on the target. When the

64 TAGO 1992C

launcher is laid, the chief of section removesthe sight, steps clear of the weapon, andsignals the gunner to fire. Based on the ob-served effect, the chief of section makes ap-propriate changes in settings on the launcherto adjust the fires of the launcher where theyare desired.

TAGO 1992C 270493°-53-5 65

CHAPTER 6

TECHNIQUES AND SITUATIONS THAT REQUIRESPECIAL ATTENTION

28. Precision in Layinga. Sightin;g and laying instruments, and elevating

and traversing mechanisms must be properly oper-ated to reduce the effects of lost motion. For uni-formity and accuracy and to eliminate lost motion,all motions in setting instruments and in layingshould be in the direction prescribed in this manual.To insure accurate laying in indirect fire the chiefof section is required to verify the laying after thegunner has laid the launcher and beforie the sight isremoved fromn the launcher for firing.

b. The line of sight when setting and reading a,scale or centering a bubble should be at a right angleto the scale or level vial to prevent parallax errors.Bubbles should be centered exactly.

c. For uniformity and accuracy in laying on aim-ing posts, the vertical hair in the reticle of the tele-scope should be alined with the left edge of the aim-ing posts.

29. Aiming Points and Displacement Correctionsa. Geneai'l. After the launcher has been laid

initially for direction it is referred to the aimingposts and usually to one or more distant aimingpoints. An aiming point must have a sharply de-

66 TAGO 1U92C

fined point or vertical line clearly visible from thelauncher so that the vertical hair of the telescope canbe alined on exactly the same place each time thelauncher is relaid.

b. Distant Aiming Point. A distant aiming pointis one at sufficient distance so that normal displace-ments of the launcher in firing or traverse will notcause a horizontal angular change in direction (withthe same settings on the azimuth scales) of morethan one-half mil. The platoon commander usuallydesignates the distant aiming point or points to beused.

c. Aiming Posts.(1) Two aiming posts are used for each

launcher. Each post is equipped with alight for use at night. The most desirabledistance from the launcher to the far aim-ing post is 100 yards, considering accuracyof laying, visibility, and ability to controlthe aiming post lights. First, the far postis set up and alined. The near post is thenset up and alined halfway between the faraiming post and the launcher. The verti-cal hair of the telescope must be on the leftedge of the aiming posts for proper aline-ment. To insure equal spacing of aimingposts the same man should pace the distanceto both posts.

(2) For night use, the aiming post lights shouldbe adjusted so that the far one will appearseveral feet above the near one. The twolights placed in this way will establish avertical line for laying the launcher.

TAGO 1992C 67

(3) Since the telescope is mounted at consider-able distance from the center of rotationof the launcher, large changes in deflectionwill cause misalinement of the aiming posts.Placing the aiming posts to the left frontat a deflection of approximately 2800 whenthe launcher is in the center of traverse willkeep this misalinement to a minimum andstill allow for maximum visibility.

d. Correction for Displacement of Aiming Posts.When the gunner notes that the vertical hair of thetelescope is displaced from the line formed by thetwo aiming posts (or aiming post lights), he laysthe launcher so that the far aiming post (light) ap-pears exactly midway between the near aiming post(light) and the vertical hair (fig. 26). If the dis-placement is due to traversing the launcher, the gun-ner continues to lay as described above. If the dis-placement is, due to progressive shifting of thelauncher from shock of firing or other cause, thegunner will notify the chief of section, who, at thefirst lull in firing, will notify the platoon commanderand request permission to realine the aiming posts.To realine, the launcher is laid with the far postmidway between the near post and the vertical hair(fig. 26). The far aiming post is moved into aline-ment with the vertical hair of the telescope and thenthe near aiming post is alined. If terrain condi-tions make it impracticable to move one of the twoaiming posts, the launcher is laid for direction andreferred to the aiming post which cannot be moved.This deflection is recorded and reported to the pla-toon commander. The other post is alined and the

68 TAGO 1992C

so </X,/ o~

0

,-'

(300

P.

TAGO 1992C 69TAGO 1992C 69

azimuth micrometer scale is slipped to retain thesame deflection that was used prior to realinement ofthe aiming posts.

30. Preparation of Position for Emplacement ofLauncher

a. General. For detailed information on thepreparation of the launcher position, see FM 5-15and FM 6-140. The launcher should be emplacedon level ground to insure stability in firing and toreduce the probability of error due to cant.

b. Fire Precazutions. To prevent fires, inflammablematerial is cleared from a fan-shaped zone aheadof and behind the launcher. The areas to be clearedof material capable of burning should extend 50yards to the front and 50 yards to the rear of thelauncher and should fan out from the launcher towidths of 50 yards.

c. Spade P'it. When the ground is sandy, loose,or very soft the spade plate should be bolted to thespade to provide more spade area and reduce thepossibility of creeping. The spade plate can bebolted to the spade most easily before uncouplingthe launcher from the prime mover (TM 9-392A).

d. Trench for Firing. If there is a possibilitythat direct fire must be delivered it will be advisableto provide a trench adjacent to the left side of thelauncher to afford the chief of section some protec-tion as he performs duties in connection with layingthe launcher. Th3 trench should be L-shaped (fig.27) so that the chief of section can be partially pro-tected from enemy fire while laying the launcherand have an earth barrier between his position andthe launcher when it is fired.

70 TAGO 1992C

POSITIONFROM WHICH

SIGNALTO FIREIS GIVEN

l'gt l. Tl"77/~ fo tei irc' flXOSI I IONFROM WHICH1~,LAUNCHER!

IS LAID \|

Figure 27. Trench for use in direct fire.

· 'AGO 1992C

31. Blast Deflector

The blast deflector is a toboggan-shaped sheet ofmetal that deflects the blast of firing at the most con-centrated area beneath the launcher. On dryground where an excessive amount of dust will bechurned up by firing, the deflector will serve to mini-mize the size and intensity of the dust cloud. Itwill not arrest the flash-back sufficiently to preventfires in tinder-like foliage behind the launcher. Thearea behind the launcher must be cleared (par. 30b)even if the blast deflector is used. The deflector issecured to the launcher by means of five chain hooks(fig. 28) that wrap around the axle. The deflectormust be removed prior to traveling.

32. Traveling With Launcher Loaded

Traveling with the launcher loaded requires ex-treme care. The added weight of the rockets placesthe launcher under stresses that might result in dam-age to it. Particular care must be exercised in tra-versing rough terrain. Speeds must be slow. Thelauncher should not be towed loaded unless the rocketretaining pins are in place and the elevating lock andthe traveling lock are engaged. When preparing tofire after traveling with the launcher loaded, therocket retaining pins must be removed and the seat-ing of rockets rechecked.

33. Bore Sights

Bore sights are not currently issued for use withthe launcher and must be improvised. Suitable boresights are illustrated in figure 29. These bore sightswere fashioned from 41/2-inch (outside diameter)plastic tubing. The rear bore sight contains a small

72 TAGO 1992C

2\ At~~~~~~~~~~.C4,lt"

0

iXXC

/~~~cc;0

AZC

N

TAGO 1992C 7

hole in its center and the front bore sight containsthe cross hairs. When emplaced in the upper lefttube the bore sights should fit snugly against thefour lands.

..v.. I: .. i... ..........

'igp',e 29. Improvzisedl bore sights.

34. Models Having No Leveling SurfaceSome launchers have no level surface for the gun-

ner's quadrant atop the upper left tube. To facili-tate using a gunner's quadrant on these launchersa piece of steel or plate glass having parallel facesmay be placed on the bosses on the top surface of thetop left tube and the gunner's quadrant held on theplate for measurements. Approximate cross level-ing can be accomplished by placing the leveling plateacross the bosses of two or more tubes and using thegunner's quadrant perpendicular to the axes of thetubes. When cross leveling the launcher, the clustershould be depressed to zero elevation.

35. Testing TargetA testing target may be improvised for use when

no distant aiming point is visible for bore sighting.To improvise a testing target-

74 TAGO 1992C

a. Carefully bore sight the launcher on a distantaiming point.

b. Place a flat piece of masonite, wallboard, or simi-lar material covered with a sheet of weather resistantpaper 50 yards in front of the launcher so that itsface is perpendicular to the line of sight through thelauncher. To render the testing target stable, it maybe fastened to a stand similar to that shown in -figure 30.

Figure 30. Rear view of a bore sighting target stantd.

c. Without disturbing the relationship of the tele-scope to the cluster, mark on the paper the centersof the lines of sight through the telescope, the topleft tube, and the lower left tube.

d. From the centers marked, construct aiming dia-grams (fig. 31) such as are found on standard test-ing targets.

TAGO 1992C 75

AI AI

MIL SCALENOT TO S.CALE

20 10 5 0 10 tO20

Figure 31. An improvised testing target.

76 TAGO 1992C

e. For use in leveling or canting the test target(par. 45) either the two tube diagrams are alined ora mil scale inscribed at the bottom of the target maybe used. A small nail at the top should mark thecenter from which the arc was drawn and will pro-vide a hook from which to suspend the plumb line(fig. 31) when the target is canted (par. 45).

f. Vertical reference lines may be drawn verticallyparallel to the centers of each of the diagrams (fig.31). These lines may be used when the trunnionscannot be leveled to set the test target with the cantangle of the launcher. The target is rotated untilthe line of sight through the top left tube tracksbetween the reference lines when the launcher is ele-vated or depressed. Similarly the telescope shouldbe adjusted so that the vertical hair of its reticletracks between the appropriate reference lines whenthe tube is elevated or depressed.

g. To facilitate bore sighting in darkness bore a1 6-inch hole through the mounted testing target atthe center of each aiming diagram. A flashlightheld against the target behind the appropriate holeprovides an aiming point for use in blackout condi-tions. Fasten patches of felt padding on the back ofthe target covering the regions of each hole so thatlight from the flashlight will not escape. The flash-light must be lighted only after it is placed firmly inposition. Care must be taken to prevent disturbingthe position of the testing target.

36. Cease Firing

The command CEASE FIRING is normally givento the section by the chief of section, but in emer-gencies anyone present may give the command. At

TAGO 1992C 77

this command, regardless of its source, firing ceasesimmediately. If the launcher is loaded, the chiefof'section reports that fact to the platoon com-mander. The platoon commander acknowledges thisreport by saying, "No. (so-and-so) loaded." IfCEASE FIRING came from the fire direction cen-ter, firing is resumed at the announcement of thequadrant or quadrant elevation. If CEASE FIR-ING came from within the platoon the platoon com-mander will investigate the condition that caused thecommand to be given. When the condition has beencorrected, firing is resumed by the platoon com-mander's announcement of the quadrant or quadrantelevation.

37. To Unload

a. Unless military necessity dictates otherwise,once a live rocket is loaded it should always lbe firedin preference to being unloaded. In the event of amisfire, the procedures in TM 9--392A must be fol-lowed. If a rocket must be unloaded, the commandis UNLOAD.

b. Unloading should be under the direct super-vision of an officer. As few personnel as possibleshould be in the immediate vicinity of the launcherduring unloading.

c. The steps to be followed in unloading are-(1) Insure that the firing switch safety plug has

been removed from the control box socket.(2) Depress the cluster to approximately 90 mils

elevation.(3) With a mattock handle the gunner, stand-

ing to the flank pushes forward on the baseof the rocket (fig. 32) until a rocketeer,

78 TAGO 1992C

standing to the flank, can grasp the rocketas it emerges from the launcher.

(4) Misfire rockets (par. 71) are kept separatefrom other rockets as they must receive spe-cial handling (TM 9-392A). Rockets thatare merely unloaded (not misfires) are re-packed for future use.

FiTgu-e 32. Unloading.

38. Care of Ammunition

a. To insure uniform results in firing, to prolongthe life of the tubes, and to avoid accidents, care mustbe exercised in the storage and handling of rocketsat the battery. Provisions of TM 9-392A, TM 9-

TAGO 1992C 79

1900, and TM: 9-1950 applicable to field serviceshould be followed carefully. In the field, conditionsexisting at each position will determine the amountof time, labor, and materials required to store andpreserve the rockets adequately. If the position is tobe occupied for only a few hours, a tarpaulin spreadon the ground may be sufficient; for longer periodsof time more adequate facilities should be provided.

b. Rockets must be protected from damage. Whenrockets are received, they should be sorted into lotsand placed in the best available storage. The temper-ature of rockets should be kept as uniform as possibleand should never exceed 120 ° F. Ammunition datacards should b kept until all rockets for that lot areexpended. Rockets should be left in containers untiltheir early use is expected. Protection should beprovided against moisture, dirt, direct rays of sun,and as far as practicable, hostile fire and bombing.Protection against weather, dirt, and sun may beobtained by the use of tarpaulins below and abovethe ammunition, and suitable dunnage between thelayers. Protection against hostile fire may be ob-tained by the use of small dispersed stacks, trenches,or dugouts. Each stack should contain not more than75 rockets. Stacks should be at least 10 yards apart.The rockets should all point in one direction, prefer-ably nose down, or toward a barricade. If this can-not be done they should be stacked so that they pointin the direction likely to cause the least damage in theevent of accidental ignition of the propelling charge.

c. For further information on care of ammunition,see FM 6-140, TM 9-392A, TM 9-1900, TM 9-1901,and TM 9-1950.

80 TAGO 1992C

39. Section Data BoardWhen positions are occupied for more than a few

hours, data boards may be used by each section forrecording such items as deflections to aiming points,minimum elevations, data for barrages and counter-preparations, and other data that may be neededquickly.

TAGO 1992C 270493°-53-6 81

CHAPTER 7

BORE SIGHTING AND BASIC PERIODIC TESTS

Section I. GENERAL

40. Purpose and ScopeThe purpose of this chapter is to outline the pro-

cedures for bore sighting and making basic periodictests of on-carriage fire control equipment. The pro-cedures covered will include only those that may beaccomplished at battery level.

41. EquipmentThe following equipment is needed for performing

bore sighting and periodic tests:a. Bore Sights. Improvised front and rear bore

sights (par. 33) are necessary for both bore sightingand testing.

b. D'esting Targets. A testing target or suitablesubstitute is required for both bore sighting and test-ing. If a testing target has not been prepared (par.35) a clearly defined aiming point 2,500 or moreyards from the launcher may be used to accomplishapproximately the same purpose as the testing target.

c. Plumb Line. Although not essential for boresighting, it is necessary that a plumb line be used inthe basic periodic tests in order to obtain maximumaccuracy. The farther from the launcher that theplumb line is placed, the longer the line must be.For example, to be effective at 5 feet in front of thelauncher tubes, the line must be approximately 25

82 TAGO 1992C

feet long. To keep such a long plumb line taut itmay be necessary to add weight to it. Wrenches orrocks may be used. The tendency of the weight toswing may be decreased by placing a bucket contain-ing water or other liquid under the plumb line sothat the plumb bob or other weight is partially im-mersed in the liquid. If a convenient means of sus-pension is not readily available, a pole may be em-ployed. A plumb line strung from a building ortree as in figure 33 is more desirable and should beused if possible. Units in garrison may find it con-venient to rig a plumb line on a building. The linemay then be nailed in place so that it can be usedpermanently.

Figure 33. I'lulnmb line suspendled from tree.

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d. Tools. The section equipment includes toolsnecessary for bore sighting and testing. Care mustbe taken in using the screw drivers and wrenches toinsure that damage does not result through careless-ness or the use of inappropriate tools.

42. LevelingPrior to starting the tests, the launcher should be

placed in its center of traverse. Although it is notabsolutely necessary to level the trunnions for boresighting, it is advisable to do so whenever possible.Accurate results can be obtained more readily if thetrunnions are level, since a corresponding tilt doesnot have to be, introduced in the panoramic telescopemount and in the testing target. The trunnions canbe leveled by leveling the ground under the wheels orby blocking one axle or wheel. Approximate level-ing may be measured by use of the gunner's quadrantand a levelingf plate as explained in paragraph 34.

a. Plumb Line. The best method to check levelingis by means of the plumb line. The line is suspendedapproximately 5 feet directly in front of the axis ofthe top left tube. When the trunnions are level, theline of sight should track the plumb line as the tubeis depressed and elevated throughout the limits ofelevation and deviate from the line by no more thanthe thickness of the cross hair on the muzzle boresight.

b. Gunner's Quadrant. In leveling operations us-ing the gunner's quadrant, a quadrant that has beentested (par. 4:8) and found to be accurate is used.

o. Launcher Not Level. When it is impossible tolevel the trunnions the cross-level bubble cannot beused. If the cluster cannot be leveled the longi-

84 TAGO 1992C

tudinal-level bubble cannot be used. To permit boresighting when either of these conditions exist, linesshould be scribed on certain sight mount components(fig. 34) after a basic periodic test (par. 48) when thesighting equipment is in correct adjustment. Thesescribed lines can be matched later, when leveling isimpossible, to retain the same relationship betweenthe axis of the cluster and moving parts of the on-carriage sighting equipment. After a basic periodictest with the tubes and sight in perfect alinement, usea knife blade or other sharp metal point to scribe thelines shown in figure 34. Care should be taken thatthe lines are scribed in the paint only and are not cutinto the metal. Fill the scribed lines with whitepaint and wipe off the excess. If conditions preventbore sighting with the cluster level, longitudinal com-pensation for an unlevel (elevated or depressed) tubemay be made by matching the scribed lines at 2 (fig.34). If the trunnions cannot be leveled, cross-levelcompensation may be made by matching the scribedlines at 3. The scribed line at 1, opposite the slippingazimuth micrometer index, represents deflection zeroand is useful not only as an auxiliary index in boresighting, but also to establish zero deflection for di-rect fire when the micrometer scale has been slipped.

Section II. BORE SIGHTING

43. General

a. Description. Bore sighting consists of makingthe optical axis of the telescope parallel to the lineof sight through the centers of the tubes. It consistsof those tests and adjustments that are peiformed bysection personnel to insure accuracy in laying for

TAGO 1992C 85

Figure 3JI. Scribed lines for positioning motunt.

elevation and direction. The launcher should beplaced near its center of traverse prior to bore sight-ing. All instruments and mounts must be positionedsecurely; there must be no free play. Bore sightingis conducted before firing and when necessary duringlulls in firing.

86 TAGO 1992C

b. Methods. Three methods of bore sighting the4.5-inch multiple rocket launcher are-

(1) Distant aiming point.(2) Testing target.(3) Aiming circle.

44. Distant Aiming Point Method

a. General. This method consists of alining theline of sight through the top left tube and the tele-scope on a common point at least 2500 yards fromthe launcher. Because the lines of sight converge ona single point, accurate cross leveling of the trun-nions is unnecessary when bore sighting on a distantaiming point. Normally the cluster will not be level,so the scribed lines (fig. 34) will be matched.

b. Procedure. The steps to be followed are-(1) Insert the bore sights (par. 33).(2) Match the scribed lines (par. 42).(3) Bring the matching index lines on the elbow

telescope into coincidence.(4) Bring the matching index lines between the

elbow telescope and the telescope holderbracket into coincidence.

(5) Sight through the upper left tube and trav-erse and elevate until the line of sightthrough the axis of the tube is on the aim-ing point.

(6) Sight through the telescope and'with theazimuth and elevation micrometer knobsplace the cross hairs of the telescope on theaiming point.

(7) If the azimuth micrometer scale does notread zero, loosen the azimuth micrometerslipping clamp (fig. 20), slip the azimuth

TAGO 1992C 87

micrometer scale to zero (fig. 21), tightenthe clamp, and verify the adjustment.

(8) Note the other azimuth scale zero alinementwith the index. If it is not in alinement,loosen the wing nut, slip the scale to zero,and tighten the wing nut. Open the doorand verify that the inner azimuth scale isat zero.

(9) If the elevation micrometer scale does notread zero, loosen the three clamping screws,slip the elevation micrometer scale to zeroand retighten the screws. Verify the ad-justment.

(10) Note the elevation scale zero alinementwith the index. If it is not in alinement,loosen the two elevation scale clampingscrews, slip the elevation scale to zero, andtighten the screws.

45. Testing Target Method

a. General. This method consists of making theline of sight of the telescope parallel to the axes ofthe tubes, usinlg the aiming diagrams of the testingtarget (par. 35) as aiming points. The testing tar-get is placed about 50 yards in front of the launcher..Cant in the launcher trunnions must be duplicatedin the testing target and if the cluster is not levellongitudinally, the testing target must be tilted sothat its face is perpendicular to the line of sightthrough the axes of the tubes.

b. Procedure. Steps to be followed:(1) Insert the bore sights.(2) Level the trunnions as exactly as possible.

In no case should more than 20 mils cant be

88 TAGO 1992C

present. If the trunnions cannot be leveled,match the scribed lines (fig. 34) ; if the truin-nions can be leveled, level the cross-levelbubble. If the trunnions are not level in-troduce the proper amount of correspondingcant in the testing target.

(3) Using the gunner's quadrant, level the clus-ter. If the cluster cannot be leveled longi-tudinally, tilt the testing target as in aabove.

(4) Proceed as in (3) through (10) in para-graph 44b, except the telescope cross hairsand the bore sights are brought to their re-spective aiming diagrams on the testing tar-get instead of on the distant aiming point.

46. Aiming Circle Method

a. General. The aiming circle method may beused when weather or terrain conditions prohibit theuse of the distant aiming point method or the testingtarget method. The aiming circle method makes noprovision for longitudinal adjustment. If, by theaiming circle method, misalinement is discovered andcorrected it should be verified at the earliest oppor-tunity, by bore sighting with a distant aiming pointor the testing target. To facilitate bore sightingwith the aiming circle certain preparatory steps mustbe performed. These operations, described in b be-low, should be performed after a basic periodic test(par. 47) when the sighting equipment is in correctadjustment.

b. Preliminary Operations.(1) The greatest care must be exercised in all

phases of these operations. All final move-

TAGO 1992C 89

ments of the instruments must be made sothat the vertical hairs in the reticles ap-proach the final position from left to rightin order to eliminate the effects of lost mo-tion in the gears.

(2) Parallax. Parallax in the aiming circleand the telescope must be eliminated. Thisis done with the aiming circle after focusingby placing in front of the eyepiece lens adark-colored cardboard or metal parallaxshield of the same diameter as the eyepiecelens housing. The shield should have a ver-tically and horizontally leveled slot 1/46 inchwide and '4 inch long. It is placed in frontof the eyepiece with the slot in the verticalposition and may be held in place with apiece of adhesive tape around the edge ofthe focusing sleeve. To eliminate parallaxin the telescope, a shield of the same diam-eter as the eyepiece lens housing and hav-ing an exactly centered hole 1/16 inch indiameter is mounted in front of the eyepiecelens (fig. 35). A more permanent parallaxshield may be constructed of brass or bronzeshim stock. When constructed of metal aseries of fingers approximately 3/1, inchwide and 1/4 inch long separated by 4-inchspaces should extend beyond the perimeterof the shield. These fingers should be bentalong the circumference of the circie untilthey form an angle of 90 ° with the surfaceof the shield. They serve as a means ofclipping the shield in place quickly and per-mit easy removal. Where the eyepiece has

90 T'AGO I 192C

Figure 35. Parallax shield.

a rubber eyeguard, the fingers permit aline-ment within the guard without its removal.

c. Procedure. Steps to be followed are-(1) Insert the bore sights in the top left tube

with the element containing the cross hairsin the end of the tube closest to the aimingcircle.

(2) Level the launcher trunnions as exactly aspossible.

(3) Sight through the bore sights and aline theaiming circle either in front or in rear of thelauncher at a distance of 30 to 40 yards.

(4) Set up the aiming circle, and with the scalesset at zero, sight through the top left tubeof the launcher.

(5) Sight through the axis of the top left tube,and with the elevating and traversing mech-anisms, aline the line-of-sight through thetube on the objective lens of the aiming cir-cle exactly.

(6) Recheck to insure that at zero setting theline of sight through the aiming circle isdirectly through the axis of the top left tube.

TAGO 1 992C 91

(7) With the upper motion of the aiming circleturn to the telescope of the launcher.

(8) .With the telescope of the launcher turn tothe lens of the aiming circle.

(9) Recheck to insure that lines of sight throughboth the aiming circle and the telescope arecentered exactly on the objective lenses ofthe instruments to which they point.

(10) The deflection reading on the aiming circleis announced.

(11) If the deflection announced does not agreewith the deflection set on the sight, loosen theazimuth micrometer slipping clamp and slipthe azimuth micrometer scale to the an-nounced deflection.

(12) Tighten the clamp and verify the adjust-ment.

Section III. BASIC PERIODIC TESTS

47. GeneralBasic periodic tests are performed by the section

under the supervision of the platoon commander andthe artillery mechanic. These tests are performed atthe discretion of the unit commander. Suggestedtimes for performance are: Once each year if thelauncher is used only for nonfiring training; onceevery 3 months if the launcher is fired; as soon aspossible after extensive use, accidents, or traversingextremely rough terrain; and whenever the launcherfires inaccurately for no readily apparent reason.The tests reveal whether or not the on-carriage sight-ing equipment and the gunner's quadrant are in cor-rect adjustment. For the on-carriage equipment to

92 TAGO 1992C

be in correct adjustment, the following conditionsmust exist:

a. The line of sight of the telescope must be paral-lel to the axis of the tubes.

b. Mounts and instruments are securely attachedand there is no binding or excessive backlash betweengears.

c. With the trunnions level, cluster leveled, andboth bubbles leveled, all scales read zero and all in-dexes are matched.

d. The sighting equipment must satisfactorilymeet all tests described in paragraphs 48 and 49.

e. Prior to all tests of on-carriage fire controlequipment it is desirable that the trunnions be aslevel as possible. This may be checked by trackinga plumb line (par. 42) or by use of the gunner'squadrant as described in paragraph 34.

48. Test of Gunner's Quadranta. General. The gunner's quadrant must be in

proper adjustment before conducting tests and ad-justments of other sighting and fire control equip-ment. Inspect the shoes of the gunner's quadrantfor dirt, nicks, or burrs. Similarly, inspect theleveling surface on the upper surface of the top lefttube. Dirt, nicks, or burrs on these surfaces willcause the instrument to give inaccurate readings.

b. End-for-End lest.(1) Set both the index arm and micrometer scale

of the gunner's quadrant at zero, makingsure the auxiliary indexes match.

(2) Place the quadrant on the leveling surfaceof the top left tube, the line-of-fire arrowpointing toward the front, and center the

TAGO 1992C 93

quadrant bubble by turning the elevatinghandwheel.

(3) Reverse the quadrant on the leveling surface(turn it end-for-end). If the bubble re-centers, the quadrant is in adjustment andthe test is completed.

(4) If the bubble does not recenter, try to centerit by turning the micrometer knob.

(a) If the bubble centers, read black figuresand divide by two. This is the correction.

(b) Place correction on micrometer and levelcluster using elevation handwheel.

(c) Check by again reversing the quadrant.Bubble should center.

(5) If bubble does not center as in (4) above,move the arm down one graduation (10mils).

(a) Turn micrometer until bubble centers.(b) Take reading on micrometer, add 10 to

it and divide sum by 2.(c) Place this reading on micrometer leaving

the arm at minus 10; level cluster with ele-vation handwheel.

(d) Check by reversing quadrant on levelingsurfsace. Bubble should center.

(e) Quadrant should be sent to an ordnanceuni; if correction of error amounts tomore than plus or minus 0.4 mil.

c. Micrometer Test.(1) Set the index arm to read 10 mils on the

graduated arc and set the micrometer scaleat zero.

94 TAGO 1992C

(2) Place the quadrant on the leveling surfaceatop the cluster, the line-of-fire arrow point-ing toward the front, and center the quad-rant bubble by elevating the cluster.

(3) Set the index arm at zero on the graduatedare and turn the micrometer one revolutionto read 10 mils.

(4) Reseat the quadrant on the leveling surface.The bubble should center.

Caution: Do not disturb the laying of thecluster.

(5) If the bubble does not center, the micrometeris in error and must be adjusted by ordnancepersonnel.

d. Comparison Test. Compare readings taken atlow, medium, and high elevations with all of thegunnler's quadrants of a platoon on a single launcherthat has been accurately cross leveled. Any quad-rant differing from the average by more than 0.4 milat any elevation should be sent to an ordnance unitfor adjustment.

e. Correction. When a gunner's quadrant requiresa correction as determined by the end-for-end test,this correction is not carried during firing but isapplied only when making sight tests and adjust-ments.

49. Test of Telescope and Mounta. General. The purpose of this series of tests is

to determine whether the fire control equipment cor-rectly transmits the motion of the cluster to the lineof sight through the telescope at all elevations. Theycheck the adjustment and mounting of the variousfire control components and reveal whether the

TAGO 1992C 95

launcher operates within prescribed tolerances. Testb (below) may be performed with the trunnionseither level or canted. It is a general test that re-veals total errors of the entire mechanism. Becausecompensating errors of various parts of the mountmay result in the launcher testing out properly withtest b, the other tests specified in c through f shouldbe performed regardless of the result of test b. Totalerrors discovered by test b may then be reduced toerrors in specific parts.

b. General Test of Telescope Mount.(1) With the bore sights in place in the top

left tube, the cluster near zero elevation, andthe plumb line (par. 42) suspended in frontof the top left tube; traverse so the line ofsight through the tube is on the plumb line.

(2) Level the telescope mount in both direc-tions by centering both the cross-level andlongitudinal-level bubbles.

(3) Place the intersection of the reticle hairsof the telescope on a sharply defined aimingpoint near deflection 2800 and note the de-flection set.

Note If longitudinal displacement of the sightis necessary to place it on the aiming point, it isobtained by rotating the telescope in the holderbracket so the level of the bubbles is not disturbed.

(4) Elevate the cluster from zero to maximumelevation (or limit of the plumb line) in100 nril steps. At each step, traverse theweapon (if necessary) to bring the line ofsight through the top left tube back on theplumb line. If the line of sight throughthe tube tracks the plumb line at all eleva-

96 TAGO 1992C

tions, the trunnions are level. If it is neces-sary to traverse to bring the line of sightback to the plumb line, the trunnions arenot level.

(5) After placing the line of sight through thetop left tube back on the plumb line relevelthe bubbles at each 100 mil elevation andcheck for deviation of the line of sight fromthe aiming point. If the vertical line isoff the aiming point, it is brought to theaiming point by turning the azimuth mi-crometer knob and the deviation is meas-ured on the azimuth micrometer. If thehorizontal line is off, it is brought to theaiming point with the elevation micrometerknob and the longitudinal-level bubble dis-placement is noted.

(6) If the vertical line deviates from the aim-ing point by more than 112 mils from theoriginal deflection at any elevation tested,or if the correction for the deviation of thehorizontal line causes the longitudinal-levelbubble to travel in excess of one vial gradu-ation, some component of the on-carriagefire control equipment is out of adjustment.The weapon must be referred to authorizedordnance maintenance personnel for adjust-ment or correction.

c. Cross-Level Test.(1) If the trunnions are not level, as noted in

b(4) above, level them, removing soil frombeneath one wheel if necessary, so that theline of sight through the top left tube tracksthe plumb line at all elevations.

TAGO 1992C 270493--53-7 97

(2) Center the longitudinal-level bubble.(3) Center the cross-level.(4) Elevate the cluster to maximum elevation

keeping the longitudinal-level bubbleleveled, noting the cross-level bubble.

(5) If the cross-level bubble does not remaincentered within one vial graduation, eitherthe telescope mount is misalined or thecross-level vial is incorrectly set. Refer themount to authorized ordnance personnel foradjustment.

d. Longitudinal-Level Test.(1) Level the cluster longitudinally with the

gunner's quadrant.(2) Center the longitudinal-level bubble.(3) Operate the cross-leveling knob through-

out the limits of motion; the longitudinal-level bubble should remain centered withinone vial graduation. If the bubble movesin excess of the' tolerance, either the levelvial or the sight mount is not alined cor-rectly and the launcher should be sent to anordnance unit for adjustment.

e. Telescope Mount Alinement Test.(1) With the cluster level center the cross-level

bubble.(2) Without elevating or traversing the cluster,

operate the elevation micrometer knobthroughout the limits of motion, noting thecross-level bubble.

(3) If the cross-level bubble does not remaincentered within one vial graduation, eitherthe mount is misalined or the cross-levelvial is incorrectly set. Refer the mount to

98 TAGO 1992C

authorized ordnance personnel for adjust-ment.

f. Elevation Mechanism. Test.(1) Level the cluster longitudinally with the

gunner's quadrant.(2) Level cross-level and longitudinal-level

bubbles.(3) Check to see that the elevation scale and

elevation micrometer read zero.(4) Repeat this check of quadrant settings

against quadrant elevation settings at low,medium, and high angles of elevation.

(5) If the elevation scale does not agree withthe elevation set on the gunner's quadrantwithin 11/2 mils at any of the elevationscompared, the launcher should be sent to anordnance unit for adjustment.

50. Ordnance CheckIt is not contemplated that using units will have

the necessary facilities, tools, or skilled mechanicsto perform the more precise tests and adjustmentsof sighting and fire control equipment. When de-ficiencies recur or when defects cannot be correctedin the field, ordnance checks should be scheduled.

TAGO 1992C 99

CHAPTER 8

MAINTENANCE AND INSPECTION

51. GeneralMaintenance and inspection is essential to insure

that the section is prepared to carry out its mission.Systematic maintenance and inspection drills pro-vide the best insurance against unexpected break-down at the critical moment when maximum per-formance is essential.

52. Disassembly, Adjustment, and AssemblyDisassemblies and adjustment of the weapon au-

thorized to be performed by battery personnel areprescribed in TM 9-392A, supplemented by instruc-tions contained in Department of the Army SupplyManuals. Nc deviation from these procedures is per-mitted unless authorized by the responsible ordnanceofficer.

53. Recordsa. The principal records pertaining to the weapon

are the Artillery Gun Book (00 Form 5825), a fieldreport of accidents (SR 385-310-1), the "Unsatis-factory Equipment Report" (DA Form 468), and"Preventive Maintenance Roster" (DA Form 460).Information on the purpose and use of these recordsmay be found in the forms themselves.

b. The chiefs of sections, platoon commander, bat-tery executive, and battery commander should keep

100 TAGO 1992C

semipermanent records on their weapons for theirinformation and guidance.

54. MaintenanceFor detailed instructions concerning maintenance

of the 4.5-Inch Multiple Rocket Launcher M21, seeTM 9-392A and the lubrication order for the weapon.For detailed instructions concerning maintenance ofthe vehicle being used as a prime mover, see the tech-nical manuals and lubrication orders pertaining tothat vehicle.

55. InspectionsRegular inspections are required to insure that

materiel is maintained in serviceable condition.a. The chief of section is responsible for the equip-

ment within his section. He should inspect it thor-oughly each day. If he sees the need for repair oradjustment, he notifies the platoon commander im-mediately so that the necessary action may be taken.

b. The platoon commander, accompanied by theartillery mechanic, should make a daily spot checkinspection. Each day they should inspect differentparts of the weapons to insure complete coverageevery few days. At least once a month the executiveand platoon commander make a thorough mechani-cal inspection of weapons, auxiliary equipment,tools, and spare parts.

c. Battery, battalion, and higher commandersshould make frequent command inspections to assurethemselves that the equipment in their commands isbeing maintained at prescribed standards of condi-tion, appearance, and completeness.

d. For details on inspecting the 4.5-inch launcher,see TM 9-392A. For details on inspecting the vehicle

TAGO 1992C 101

being used as a prime mover, see the appropriatetechnical manual for that vehicle. Deficiencies foundduring inspections should be corrected promptly.

e. Duties of individuals in performing the neces-sary. inspections and maintenance of the gun are out-lined in paragraphs 56 through 61. Work must bemade routine. thorough, and rapid by following thedrill outlined in these paragraphs. When the sectionis reduced in strength, the chief of section must re-assign duties to insure that all maintenance steps arecompleted.

56. Duties in Inspection Before MarchThe inspection performed before operation is a

final check on materiel prior to leaving the motorpark for training in the field, the bivouac area forcombat, or before displacement. After inspection,and when all deficiencies have been corrected, the sec-tion is ready to go into action. Responsibilities andduties of section personnel are as follows:

a. Chief of Section.(1) Commands PERFORM BEFORE

MARCH INSPECTION. Supervises in-spections by members of the gun section inall sequences.

(2) Verifies that launcher is properly coupledand equipment installed.

(3) Verifies that the parking brakes are re-leased.

(4) Verifies presence of proper supply of gaso-line, oil, water, and emergency rations.

(5) Verifies presence of technical manuals andlubrication orders for prime mover andlauncher, trip ticket, driver's accident re-

102 TAGO 19ti2C

port form, vehicle identification card, andgun book.

(6) Inspects loading of section equipment forcompleteness and security.

(7) Inspects ammunition for lot number, con-dition, and stowage.

(8) Receives reports of personnel of his sectionupon completion of their duties in in-spection.

(9) Reports to platoon commander when sectionpersonnel have completed their duties, "Sir,No. (so-and-so) in order," or reports anydefects which the section cannot remedywithout delay.

b. Gunner.(1) Assisted by No. 1 removes the overall cover.(2) Inspects condition, completeness, and se-

curity of contents of the control box.(3) Verifies that the elevating lock is engaged.(4) Checks to see that the right parking brake

is released.(5) Assisted by No. 1 replaces the overall cover

and assures himself that all fastenings aresecured.

(6) Reports, "Gunner ready."c. No. 1.

(1) Assists gunner in removing the overallcover.

(2) Verifies presence and security of rocket re-taining pins.

(3) Verifies that the traveling lock is engaged.(4) Checks to see that the left parking brake is

released.

TAGO 1992C 103

(5) Assists gunner to replace overall cover.(6) Reports, "No. 1, ready."

d. No. 2.(1) Checks to see that drawbar is locked

securely.(2) Verifies that lunette is secure in pintle and

that pintle latch is closed and locked.(3) Verifies presence and security of trail stake

on right of trail.(4) Reports, "No. 2, ready."

e. No. 3.(1) Verifies presence and security of aiming

post set and bore brush staff on left of trail.(2) Verifies that blackout system is installed

and functions, and that the blackout lamp issecure.

(3 Checks air pressure and condition of tires.(4) Reports, "No. 3, ready."

f. Driver.(1) Performs before operation duties as pre-

scribed in TM 21-305, assisted by other per-sonnel of the section when so directed by thechief of section.

(2) Reports, "Driver, ready."

57. Duties in Inspection During MarchThe inspections performed during march are con-

stant checks on the operation of the materiel and thesecurity of all the stowed equipment. There is nocommand for this inspection as it is carried on con-stantly. The responsibilities and duties of sectionpersonnel are as follows:

a. Chief of Section.(1) Supervises march discipline.

104 TAGO 1992C

(2) Assigns duties for antiaircraft and anti-mechanized security.

b. Gunner.(1) Listens for abnormal or unusual noises, and

observes towed load for security. Signalschief of section in case of malfunction.

(2) Observes carried load and personal impedi-menta for security.

c. Nos. 1 to 3.(1) Perform duties as antiaircraft and anti-

mechanized security sentries as assigned bychief of section.

(2) Listen for abnormal or unusual noises indi-cating malfunction of vehicle or launcher.

d. Driver. Performs during operation duties asprescribed in TM 21-305.

58. Duties in Inspection During the HaltInspection at the halt is made to insure that the

launcher and prime mover are in satisfactory opera-tional condition. This inspection checks itemswhich cannot be checked during the march and isperformed as soon as a halt is made. The chief ofsection, on being told length of halt, will divide halttime between relief and maintenance. The respon-sibilities and duties of section personnel are asfollows:

a. Chief of Section.(1) Commands PERFORM HALT INSPEC-

TION. Supervises inspection and mainte-nance at halt. Insures that personnel re-main on the off-road side of the vehicle ex-cept for performance of necessary inspec-tion duties.

TAGO 1992C 105

(2) Receives reports of personnel upon comple-tion of their duties.

(3) Reports to platoon commander when in-spection is completed, "Sir, No. (so-and-so)in order," or reports any defects that the sec-tion cannot remedy without delay.

b. Gunner oandE No. 1.(1) Inspect tires and wheels of launcher. (In-

spect tires for valve caps, wear, bruises, cuts,stones in treads, and for correct air pressure.Inspect wheels for loose or missing nuts, hubcap screws, and for overheated bearings.)

(2) Report in turn, "Gunner, ready," "No. 1,ready."

c. No. 2.(1) Inspects coupling of launcher to prime

mover.(2) Verifies presence and security of trail stake

on right of trail.(3) Assists driver in inspection of vehicle unless

directed otherwise by chief of section.(4) Reports, "No. 2, ready."

d. No. 3.(1) Inspects connection and mounting of black-

out light system.(2) Verifies presence and security of aiming post

set and bore brush staff on left of trail.(3) Reports, "No. 3, ready."

e. Driver.(1) Performs at halt duties as prescribed by TM

21-305, assisted by No. 2 unless directedotherwise by the chief of section.

(2) Reports, "Driver, ready."

106 TAGO 1992C

59. Inspection Duties Prior To and During FiringInspection before and during firing is a continuing

inspection to insure proper functioning of materiel.No command is necessary; each member of the sec-tion performs appropriate inspections before andduring firing as shown below.

a. Chief of Section.(1) Supervises and commands section.(2) Insures proper handling and preparation of

ammunition.b. Gunner.

(1) Checks operation of elevating and travers-ing mechanisms. Cleans and lubricates asrequired.

(2) Cleans live electrical contacts in the tubes,assisted by No. 1.

(3) Tests circuit using battery power as de-scribed in TM 9-392A to be sure that thebatteries have sufficient power for firing inevent of generator failure.

(4) Tests and adjusts sighting and fire controlequipment.

(5) Installs instrument light batteries and seesthat lamp lights.

c. No. I(1) Assists gunner to clean live electrical con-

tacts.(2) Checks fuze wrench for condition. While

preparing ammunition, pays particular at-tention to inspection of the fuze threads andcavities in the rocket heads.

TAGO 1992C 107

d. No. 2.(1) While preparing ammunition for firing,

carefully examines the rockets to see thatthe plastic closing disk is in place, and thatrockets are free of foreign matter, moisture,or grease.

(2) Performs such other duties as assigned bythe chief of section.

e. No. 3.(1) Cleans and dries rocket cluster tubes as

described in TM 9-392A.(2) Installs aiming post light batteries and sees

that lamps light.(3) Performs such other duties as assigned by

the chief of section.f. Driver. The driver, unless directed otherwise

by the chief of section, moves his vehicle to the truckpark where he performs after operation duties asprescribed in TM 21-305.

60. Inspection Duties and Maintenance After Opera-tion

After operation, the gun is immediately givenwhatever servicing and maintenance is needed to pre-pare it in every way for further sustained action or todetermine the need for maintenance by higher eche-lons. These operations may be performed in themotor park, bivouac area, or combat position. Re-sponsibilities and duties of section personnel are asfollows:

a. Chief of Section.(1) Commands PERFORM AFTER OPERA-

TION INSPECTION. Supervises de-

108 TAGO 1992C

tailed inspection and maintenance of gun inall sequences.

(2) Inspects tools, accessories, and equipmentfor completeness and condition.

(3) Inspects ammunition for lot number andcondition.

(4) Verifies the presence of and makes currententries in gun book, trip ticket, and other re-quired documents.

(5) Verifies supply of emergency rations, oil,water, and gasoline.

(6) Receives reports from members of the sec-tion as they complete inspection and mainte-nance operation.

(7) Reports to platoon commander when sectionpersonnel have completed their duties, "Sir,No. (so-and-so) in order," or reports anydefects which the section cannot remedywithout delay.

b. Gunner.(1) Removes overall cover, assisted by No. 1.(2) Cleans optical parts of telescope as pre-

scribed in TM 9-392A.(3) Cleans and oils elevating arc.(4) Checks control box for cleanliness, com-

pleteness, and arrangement of contents.(5) Replaces overall cover, assisted by No. 1.

c. No. 1.(1) Assists gunner to remove overall cover.(2) Examines bellows for cracks and holes.(3) Lubricates at all oiler lubrication points in

vicinity of cluster, trunnions, elevating andtraversing controls, and axle according tolubrication chart.

TAGO 1992c 109

(4) Assists gunner to replace overall cover.d. No. 2.

(1) Lubricates at all oiler points in vicinity ofdrawbar.

(2) Cleans trail and wheel stakes.(3) Inspects tires and wheels of launcher for

damage and loose and missing parts; testsair pressure ,if tires and corrects it if neces-sary.

(4) Assists driver in inspections and mainte-nance unless directed otherwise by chief ofsection.

e. No. 3.(1) Takes staff section from trail, bore brush

from control box, assembles them and cleansand oils the tubes of the rocket cluster.

(2) Inspects staff section and bore brush, per-forms necessary maintenance, returns themto case and control box respectively.

(3) Takes aiming posts from case, inspects themand performs any necessary maintenance.Returns them to case.

(4) Inspects blackout light system for operationand wear.

(5) Refastens aiming posts and staff section ontrail and installs blackout light system.

f. Driver. 'Performs after operation duties asprescribed in TM 21-305, assisted by No. 2 whenavailable.

61. Duties in Weekly Inspection and Maintenance

In garrison these duties are performed weekly.On maneuver or in combat they are performed after

110 TAGO 1992C

each field operation as prescribed in TM 9-392A andthe lubrication order for the launcher.

a. Chief of Section.(1) Supervises section in weekly inspection and

maintenance of launcher, tools, accessories,and equipment.

(2) Obtains assistance of battery mechanic forsupervision of any necessary authorizeddisassembly and maintenance.

b. Gunner and Nos. I to 3. Perform normal in-spection of launcher, tools, accessories and equip-ment and lubrication schedule set forth in TM 9-392A as directed by the chief of section.

c. Driver. Assists the motor mechanic in the per-formance of the prescribed vehicle weekly inspectionand maintenance unless directed otherwise.

TAGO 1992C 111

CHAPTER 9

DECONTAMINATION OF EQUIPMENT

62. General

Equipment that has been contaminated by chemi-cal, biological, or radiological agents constitutes adanger to personnel. Contamination means spread-ing of an injurious agent in any form and by anymeans. Persons, objects, or terrain may be con-taminated. Decontamination is the process of mak-ing any contaminated place or object safe for un-protected personnel. This can be done by covering,removing, destroying, or changing into harmless sub-stances the contaminating agent or agents. Gen-erally, only equipment contaminated by persistentagents need be decontaminated.

63. Decontamination for Chemical Agents

a. Ammunition. With rags, wipe off visible con-tamination from rockets. Apply DANC (decon-tamination agent, noncorrosive, M4), wipe -w ithgasoline-soaked rag, then dry. If DANC is notavailable, scrub with soap and cool water. Slurry(equal weights of water and chloride of lime) canbe used on contaminated ammunition containers, butit must not be allowed to penetrate to the ammuni-tion itself.

b. Instruments. If exposed to corrosive gases,clean instruments as soon as possible with alcohol

112 TAGO 1992C

(or gasoline, if no alcohol is available), and applya thin coat of light machine oil. A rag dampenedwith DANC may be used, followed by drying witha clean rag and then applying a coat of machine oil.DANC damages plastic or hard rubber surfaces.

e. Weapons. Remove dirt, dust, grease, and oil.Do not apply wet mix but allow surfaces to air aftersoil and dirt have been removed. DANC can beused on all metal surfaces, except the lands and elec-trical contacts. Also effective on metal are hotwater, cleaning solvent, or repeated applications ofgasoline on swabs. If the emergency use of gaso-line-soaked swabs is made (FM 21-40), extreme caremust be taken to insure that the gasoline does notspread the contamination and that no gasoline inliquid or vapor form remains. This excess wouldbe ignited when the launcher is fired. Do not useDANC or gasoline to clean the bellows. After de-contamination, weapons are dried and oiled.

d. Automotive Equipment. Light contaminationfrom spray can be neutralized by exposure to air.For heavier contamination use DANC on interioror exterior surfaces that personnel are likely totouch. For larger area decontamination, wash ve-hicle with water and scrub painted surfaces withsoap and water.

64. Decontamination for Biological and RadiologicalAgents

a. General. After a contaminating attack, recov-ery of equipment may be achieved either by waiting,to permit the decay of contamination, or by activedecontamination, to reduce danger to a level whereit is no longer a significant hazard to operating per-

TAGO 1992C 270493°-53-8 113

sonnel. Decontamination may be either rough ordetailed, depending on the urgency of the militarysituation. The procedure adopted will be a com-mand decision.

b. Rough D)econtamination. Rough decontamina-tion is performed when urgency is the main factor.Its purpose is to reduce contamination sufficientlyto permit personnel to work with, or close to, equip-ment for limited periods. Rough decontaminationmay be achieved by means of water or steam if avail-able. Soap or other detergent used in conjunctionwith water or steam aids in decontamination.

c. Detailed Decontamination. Detailed decon-tamination, in which the emphasis is on thorough-ness) will be carried out in rear areas and repairbases and' includes procedures of surface decontami-nation, aging and sealing, and disposal.

65. References

For further information on decontamination seeFM 21-40, T.M[ 3-220, and TF 3-1407.

114 TAGO 1992C

CHAPTER 10

DESTRUCTION OF EQUIPMENT

66. General

a. Tactical situations may arise in which it is nec-essary to abandon equipment in the combat zone. Insuch a situation all abandoned equipment must bedestroyed to prevent its use by the enemy.

b. The destruction of equipment subject to captureor abandonment in the combat zone will be under-taken only upon authority delegated by a division orhigher commander.

c. All batteries must prepare plans for destroyingtheir equipment in order to reduce the time requiredshould destruction become necessary. The principlesto be followed are:

(1) Plans for destruction of equipment must beadequate, uniform, and easily carried out inthe field.

(2) I)Destruction must be as complete as the avail-able time, equipment, and personnel willpermit. Since complete destruction re-quires considerable time, priorities must beestablished so that the more essential partsare destroyed first.

(3) The same essential parts must be destroyedon all like units to prevent the enemy fromconstructing a complete unit from damagedones.

TAGO 1992C 115

(4) Spare parts and accessories must be giventhe same priorities as the parts installed onthe equipment.

67. Methods

To destroy equipment adequately and uniformly,all personnel of the unit must know the plan andpriority of destruction and be trained in the methodsof destruction.

68. References

For detailed. information on destruction of the 4.5-inch multiple rocket launcher and fire control equip-ment, see TM 9-392A; for ammunition, see TM 9-1901 and TM 9-1950. For destruction of the primemover, see the TM appropriate to the vehicle beingused as the prime mover.

116 TAGO 1992C

CHAPTER 1 1

SAFETY PRECAUTIONS

69. General

Safety precautions to be observed in training areprescribed in SR 385-310-1. Additional informationis found in FM 6-140, T.M 9-392A, TM 9-1900, andTM 9-1950. The more important safety precautionsare summarized in the following paragraphs.

70. Ammunition

a. All ammunition at the firing position must beplaced so that it is protected from the backb]ast ofthe launcher and from explosion in case of accidentat the position. Flames and explosive materials suchas gasoline must be kept away from the ammunition.Ammunition should be protected from direct rays ofthe sun by use of a tarpaulin or other suitable cov-ering.

b. Battery personnel must not attempt to disas-semble fuzes.

e. In handling and storage, complete rocketsshould at all times be kept pointed in the directionthat would result in the least damage should the pro-pellant be accidentally ignited, preferably nose downor toward a barricade (TM 9-1950). Rocket compo-nents ordinarily will be stored as shipped.

d. All rockets not fired that have been preparedfor firing must be checked by the chief of section to

TAGO 1992C 117

insure that they are restored to their original condi-tion and packing, and marked for priority of usein order that opened packages will be kept to a mini-mum. Such ammunition will be used first in subse-quent firings.

71. Failure to Fire

Caution must be observed in removing a rocketthat failed to lire. Since the failure may be merelya delay in the functioning of the propelling chargeexplosive train, hangfire, there should not be an im-mediate removal of the rocket. The rocket must notremain too long in the launcher, however, becausethere is danger that a very hot weapon may cause anyor all explosive components of a chambered rocket tofunction, cook-off. (For further information onhangfires, cook-offs, and misfires, see TM 9-392A.)For removing a rocket the following definite inter-vals for waiting after failure to fire and additionalattempts to fire have been established on the basis ofexperience and characteristics of the weapon:

a. After a failure to fire, actuate the firing switchtwo additional times in attempts to fire.

b. If the launcher still fails to fire, wait 15 secondsfrom the last attempt to fire, then check the electricalcircuit for breaks, shorts, and poor contacts beforeanother attempt to fire.

c. After making any necessary adjustments, againactuate the firing switch three times.

d. If the launcher still fails to fire, wait 15 secondsafter the last attempt to fire before again checkingthe electrical circuit.

118 TACO 1952C

e. After making any other necessary adjustments,again actuate the firing switch three times in attemptsto fire.

f. If the launcher still fails to fire, wait 15 secondsand remove the rocket as prescribed in paragraph 37.It is considered to be at fault unless upon examina-tion a defective electrical circuit not previously de-tected is found.

g. During the operations described in a throughf above, the launcher will be trained on the targetand all personnel will stand clear of the muzzle andthe path of the backblast.

A. The unloaded rocket will be kept separate fromother ammunition until the cause of failure to fireis determined. If the rocket is at fault it will be keptseparate until disposed of. If the firing switch isfound to be at fault, the rocket may be reloaded andfired after correction of the faulty firing switch.

72. Drill and Firing

a. The launcher is kept unloaded except when fir-ing is imminent.

b. The area ahead and behind the launcher willbe clear of personnel, equipment, and inflammablematerial by a distance of 50 yards and at least 50 feetfrom each side of the launcher before the firingswitch safety plug is installed. The danger zone isshaped like a triangle beginning at the launfcher, andfanning out to a width of 50 yards at a distance of50 yards back of the weapon.

c. In training there must always be a safety officerfor each artillery unit firing. For duties of thesafety officer, see FM 6-40.

TAGO 1992C 119

CHAPTER 12

TRAINING

Section I. GENERAL

73. Purpose and ScopeThe purpose of this chapter is to present the abso-

lute minimum requirements for training the person-nel of a launcher section in the performance of theirduties in service of the launcher. It includes gen-eral information on the conduct of training, a mini-mum training schedule, and a test to be given for thequalification of gunners.

74. ObjectivesThe objectives are speed in training rocketeers in

their individual duties; and, through drill, to weldthem into an effective, coordinated team able to func-tion efficiently in combat. During training, super-visors may well keep in mind the proficiency soughtby Army Training Test (ATT) 6-3. Maximum effi-ciency is attained through continuous drills.

75. Conduct ef Traininga. Training should be conducted in accordance

with the principles laid down in FM 21-5. Its goalshould be standards set forth' in FM 6-125, TM6-605, SR 615-25-15, and SR 615-25-20.

b. In general, individual training is conducted bynoncommissioned officers as far as practicable. Offi-cers are responsible for training plans, for conduct-

120 TAGO 1992C

ing unit training, and for supervising and testingindividual training.

c. Throughout training, the application of priorinstruction to current training must be emphasized.

d. A record of the training received by each indi-vidual should be kept. This may be done by eachchief of section keeping a progress card for each manin his section. This card should show each period ofinstruction attended, tests taken, and remarks per-taining to progress. Progress cards should be in-spected frequently by the platoon commander andthe battery executive to make sure that they are beingkept properly and to determine the state of training.Requiring the chief of section to keep these recordsemphasizes his responsibility toward his section.

e. The necessity for developing leadership and ini-tiative in noncommissioned officers must be empha-sized constantly throughout training.

76. Standards to be AttainedEach member of the launcher section should know

the duties of all other members of the section and beable to perform efficiently in all positions. See para-graphs 80 through 92 for tests to be given for thequalification of gunners.

Section II. MINIMUM TRAINING SCHEDULE

77. GeneralThe training schedule outlined in paragraph 79 is

a guide to meet the minimum training requirementsfor personnel of a launcher section in subjects cov-ered in this manual.

TAGO 1992C 121

78. Individual Periods

a. Individual periods of training in service of thelauncher should be arranged, along with other bat-tery training, into a balanced training program, tak-ing into consideration the basic principles oftraining.

b. In general, except for service practice, periodson any subject should not be longer than one hour.Periods of launcher drill should be for only one-halfof an hour and should be conducted in a vigorousmanner.

c. Periods of launcher drill should be preceded andfollowed by periods on subjects that will be logicallyrelated to the drill. For example, precede a periodof launcher drill with a period of testing and adjust-ment of sighting and fire control equipment, andfollow it with a period on inspection and mainte-nance drills. A period on aiming post displacementcorrection may come between two periods of gundrill.

d. TM 9-392A provides information on which tobase periods of instruction on description, character-istics, and functioning of the launcher; familiariza-tion with the launcher, including elevating mech-anism, sighting and fire control equipment; and fieldmaintenance and malfunction. These should be in-cluded in the battery training schedule, closely alliedwith the training in service of the launcher outlinedin paragraph 79. Approximately 8 hours should bedevoted to this instruction.

e. Additional service of the launcher training maybe performed during battery training exercises.

122 TAGO 1992C

79. Schedule(Total hours 75)

C-conference; D--demonstration: PW-practical work.

TotaZ Hours 75

d Hours Subject Text refer- Training aids andMethod Ef ours Subject Tences equipment

C, D, PW_ 1 ..I-. . ..... Organization and Pars. 4-8 ... Launcher andcomposition of prime mover.launcher sec-tion; generalduties of indi-viduals; forma-tion of launchersection.

C, D, PW. 1 .-.....- Posts and posting Pars. 9-13_._- Do.of rocketeers;changing posts;mounting anddismounting.

C, D, PW 2 (1 hr. Coupling and un- Pars. 14-19.. Do.periods). coupling; pre-

pare for actionand marchorder; move-ment oflauncherby hand.

C, D, PW. 24 (one- Gun drill, duties Pars. 20-24. T/O&E equip-hail hr. in firing, in- 28, 30-34. ment.periods). direct laying.

C, D, PW. 4 (one- Gun drill, duties Pais 25-27.. Do.hall hr. in firing, directperiods). laying.

C, D, PW. 8 (1 hr. Testing and ad- Pars. 40- 50.. Do.and one- justing of sight-halt hr. ing and fireperiods). control equip-

ment.C, D, PW_ 2 (one- Aiming post Par. 29 .-. T/O&E equip-

hall hr. displacement ment. black-periods). correction. board and

chalk.C, D, PW. 4 (1 hr. Inspections and Pars. 51-61._ T/O&E equip-

periods). maintenance ment.drills.

C, D, PW. 1 ..-....... .Decontamination Pars. 62-65._ Decontamina-of materiel. tion equip-

ment, T/O&Eequipment.

TAGO 1992C 123

79. Schedule-Continued

Method Hours Subject Text refer- Trainingaids andences equipment

C, D, PW. 1.--..... . .Destruction of Pars. 66-68-- Demolition andmateriel to T/O&E equip-prevent use by ment.the enemy.

C, D .--.. I- 1......- Safety precautions Pars. 69-72_. T/O&E equip-ment.

PW --...-. 16 (4 hr. Service practice, Pars. 20-24, Do.periods). indirect laying. 28, 30-34.

PW ......- 4-.. ......... Service practice, Pars. 25-27_ Do.direct laying.

C, PW ---- 6 (1 hr. Review and tests All previous Do.periods>. of subjects pre- references.

viously covered.

Section III. TESTS FOR QUALIFICATION OF GUNNERS

80. Purpose and ScopeThis section prescribes the tests to be given in the

qualification of gunners. The purposes of the testsare-

a. To provide a means of determining the relativeproficiency of the individual artillery soldier in theperformance of the duties of the gunner, 4.5-inchmultiple rocket launcher. The tests are not to beused as a basis for determining the relative pro-ficiency of batteries or higher units.

b. To serve as an adjunct to training.

81. General Instructions

a. Standards of Precision. The candidate will berequired to perform the tests in accordance with thestandards listed below:

(1) Scale settings must be exact and matchingindexes must be brought into coincidence.

124 TAGO 1992C

(2) Level bubbles must be exactly centered.(3) The vertical hair in the reticle of the tele-

scope must be alined on the left edge of .theaiming post or on exactly the same part ofthe aiming point or target each time thelauncher is laid.

(4) Final motions of azimuth and elevation set-ting knobs, as well as traversing and ele-vating handwheels, must be made in theappropriate direction. Final motion forsetting scales is from the lower to the highernumbers. For elevation, the final motionof the handwheel should be in the directionof the more difficult movement. Final mo-tion for traversing is from left to right.Final movement of the vertical hair of thetelescope is from left to right.

b. Assistance. The candidate will receive no un-authorized assistance. Each candidate may selectauthorized assistants as indicated in the tests. Inthe event a candidate fails any test because of thefault of the examiner or any assistant, the test willbe disregarded, and the candidate will be given an-other test of the same nature.

c. Time. The time for any test will be the timefrom the last word of the command to the last wordof the candidate's report. The candidate may beginany test after the first word of the first command.

d. Scoring. Scoring will be conducted in accord-ance with the two subparagraphs Penalties andCredit under each subject. If a test is performedcorrectly, credit will be given in accordance with thesubparagraph Credit under each subject. No creditwill be allowed if conditions exist as specified in the

TAGO 1902C 125

subparagraphs headed Penalties. No penalty willbe assessed in excess of the maximum credit for eachtest.

e. Preparation for Tests. The launcher will beprepared for action and the candidate posted at theproper position correspondling to the test being con-ducted or as indicated in the subparagraphs entitledSpecial Instructions. The examiner will insure thatthe candidate nnderstanlds the requirements of eachtest and will require the candidate to report "I amready," before each test.

f. Qualification Scores. Minimum scores requiredfor qualification in the courses are as follows:Individual Classific'tion Points

Expert gunner ____-______-- _----------------- 90First-class gunner __----------.------------_--- 80Second-class gunner_ _____________---_---_____ 70

126 TAGO 1992C

82. Outline of Tests

Para- Number Ponts Maxt-graph Subject of mum

number tests each credit

83 Direct laying, elbow telescope 4 2 884 Indirect laying, deflection only_ 18 2 3685 Laying for elevation with ele-

vation scale- 3 2 686 Laying for elevation with

gunner's quadrant ------ 3 2 687 Displacement correction -_-_-- 2 ...... 6

Part I --- _----------_ (1) 5 (5)Part II ----------- - (1) 1 (1)

88 Measuring site to the mask-- 1 4 489 Measuring elevation -- _---- 1 4 490 Referring the launcher ----- 1 5 591 Test and adjustment of sight-

ing and fire control equip-ment ------ -------- --. 6 _----- 10

Test 1 _---------------- (1) 2 (2)Tests 2, 3, 4, and 5 ------ (4) 1 (4)Test 6 ----- -------. (1) 4 (4)

92 Materiel------------- 3 5 15

Total credit ------__--…----------__--- 100

83. Direct Laying, Elbow Telescopea. Scope of Tests.

(1) Four tests (two groups of two tests each)will be conducted in which the candidatewill be posted as the chief of section andwill be required to execute commands simi-lar to those given in c below.

(2) Tests 1 and 2 (and tests 3 and 4) will beexecuted as one series of commands.

TAGO 1992C 127

(3) The candidate will be tested in the dutiesof the chief of section.

b. Special Instructions.(1) A stationary target will be placed approxi-

mately 600 yards from the launcher.(2) The candidate will have a range card on

which the elevation corresponding to thetarget range will be indicated.

(3) The azimuth scales will be set at zero, ele-vation at 100, bubbles leveled, and indexlines matched.

(4) The candidate will be posted so that he haseasy access to the sight.

(5) The launcher will be pointed so that-(a) A shift of approximately 30 mils will be

required for tests 1 and 3.(b) It will not be necessary to shift the trail

for any of the four tests.(6) Laying at the termination of tests 1 and 3

will not be disturbed prior to beginningtests 2 and 4.

(7) The examiner will announce the assumeddirection of the movement of the target atthe beginning of tests 1 and 3. The as-sumed direction of the movement of thetarget; in test 3 will be opposite to that intest 1.

128 '.AGO 1992C

o. Outline of Tests.

'lfstn nm- Examiner commands (for Action of candidateber example) Actio onddat

1 and 3__ TARGET, THAT Sets elevation correspond-TRUCK, LEAD ing to target range (from5. range card). Centers

longitudinal-level bub-ble.

Sets 5-mil lead in appro-priate direction on azi-muth micrometer scale.Centers cross-level bub-ble

Traverses launcher untilvertical hair is on centerof mass of target, thensteps clear.

2 and 4__ RIGHT (LEFT) 4, Same as test No. 1 above.ADD (DROP) 7.

d. Penalties. No credit will be allowed if, aftereach test-

(I) ,\zimuth micrometer scale has not been setfor correct lead in a)ppropriate direction.

(2) The matching lines on the telescope havebeen misalined.

(3) The elevation is not set correctly.(4) ThIe bubbles are not leve].(5) The vertical line in the telescope reticle is

not on the center of the visible mass of theta iget.

e. Credit.Time in seconds exactly or less than__ 18 21 24Credit -___ ....... ____ __ _ ...____ 2. 0 1. 5 1.0

TAGO 1)92C 270493°----53---9 129

84. Indirect Laying, Deflection Only

a. 8co?& c of T'..sis. Eiigllteen tests (two groups ofnine tests ea:ld) will be conducted in -whicl tihe can-didate will be posted as tie gunner andl will be re-quired to execute commands similar to lhose given inc below. Tests 1 tlhroughll 9 (aIl tests 10 thllrouglh1S) will ble executed as one series of commands.

b. ,Spcchial Ilstuction.s.(1) Colmmands will not necessitate shifting the

trail.(2) The examiner will select a suitable aiming

point and identify it to the candidate plriorto tests 5 alnd 14.

(3) Latinclher will be laid oni aiming p)osts.(4) The command for new deflections for each

test will ble within the )rescribed lilnitslisted below. The exaliner must insure thatlhe does not give commnalinds that exceed thlelimits of traverse of the launcher.

Mlaximlum MllinilmllunTest numbecr chanlge challge

(mils) (mils)

1 and 10 -____-_.. _.___.._______ 20 102 and I I------------ - --- 30 203 and 12 .. _ -. .- -.-.-. ....-. - 30 204 and 13-- .._... .--...........- --. 30 155 and 14_ .... . one 2006 and 15 - --- nne 2007 and 16 -.....-----. 20 108 and 17 .--... -....-........- ---- 30 209 and 18 - -------.------- 30 20

130 TAGo Il'2C

(5) The launciler will be laid with correct set-tings tt the conclusion of each lest beforeproceeding with the next test.

(6) Aiming posts will be set out tit prescribeddistances and deflection 28)00 for these tests.

(7) The exam; ner will designate tile sectionnumber of the launcher to be used.

c. Outlile of Tests.

Test nnni- Examiner commands (for Acio of ndidateIher example)Test ,vrltll- example) | Action of candidate

I anl 10_ DEFLECTION 2780. Sets deflection.Centers cross- and longi-

tudinal-level hbubbles.Traverses launcher until

vertical hair is on leftedge of ailing posts.

Checks centering of bub-bles.

Relays if necessary.Calls "Ready" and steps

clear.2 and 11. I )EFLECTION 2807_ Same as test No. 1 above.3 and 12_ DEFLECTION 2784_ Same as test No. 1 above.4 and 13. DEFLECTION 2819_ Same as test No. 1 above.

At concluisionl of test Gunner relays launcher on4 (13) give CEASE 2800.FIRE, END OFMISSION. (Notime considered forthis operation.)

5 and 14. AIMING POINT, Refers telescope to churchCHURCH STEE- steeple.PLE, REFER Reads deflection and re-

ports "No. 1, Deflection(so much)."

TAGO 1992C 131

Test numni Exaliner comlnmands (for Action o c(aldidateber example)

6 and 15_ COMMON D E- Slips the azimuth microm-FLECTION 2800. eter scale to zero.

Slips the index ring to 2800on the outer azimuthscale.

Verifies that vertical hairof the reticle is on thechurch steeple and thatthe bubbles are level.

Calls "No. 1, Deflection2800."

Steps clear.7 and 16_ DEFLECTION 2785_ Saine as test No. 1 above

except vertical hair ison aimning point.

8 and 17 DEFLECTION 2812_ Same as test No. 1 aboveexcept vertical hair is onaiming point.

9 and 18 DEFLECTION 2795_ Same as test No. 1 aboveexcept vertical hair ison aiming point.

d. Penaltie,s.(1) No credit will be allowed if, after each

test--(a) The deflection is set incorrectly.(b) The cross-level or longitudinal-level

bubble is not centered.(c) The vertical hair of the telescope is not

on the aiming point or left edge of aim-ing posts, as the case may be.

(2) No credit will be allowed if the last motionof the traverse was not made from left to

132 TAGO 1592C

right and the traversing handwheel brakewas not set.

e. Credit.Time in seconds, exactly or less than -- _ _ _ -

Tests 5, 14, 6, and 15 each ------ 8 9 10Other tests, each --------------- 13 14 15

Credit ------------ _.-------_----- ' 2.'0 1. 5 1. 0

85. Laying for Elevation With Elevation Scales

a. Scope of Tests. Three tests will be conductedin which the candidate will be posted as the gunnerand will be required to execute commands similarto those given in c below.

b. Special Instructions.(1) ) The elevation setting on the elevation scale

prior to test No. 1 will be within 40 mils ofthe initial elevation for the test.

(2) Each test will require a change of settingsand the accompanying laying of the tubein elevation within the limits of 20 to 40mils.

(3) Commands for elevation for tests Nos. 2and 3 will not be made in the multiples of10 mils,

.AGO .1992C 133

c. Outline of Tests.

Test Examiner commands (for Action of candidatenumber example)

1 QUADRANT ELEVA- Sets announced elevation.TION 420. Centers cross-level and

longitudinal-level bub-bles.

Calls "Ready" and stepsclear.

2 QUADRANT ELEVA- Same as test No. I above.TION 446.

3 QUADRANT ELEVA- Same as test No. 1 above.TION 479.

d. Penalties.(1) No credit will be allowed if, after each test-

(a) The elevation is set incorrectly.(b) The cross-level or longitudinal-level bub-

ble is not centered.(2) No credit will be allowed if the last move-

ment of the elevating handwheel was notmade in the direction in which it is moredifficult to turn the elevating handwheel andthe elevating handwheel brake was not set.

e. Credit.Time in seconds, exactly or less than_. 6 7%s 8%Credit- -_____..__._._------- _------ 2. 0 1. 5 1. 0

86. Laying for Elevation With Gunner's Quadrant

a. Scope of/ Tests. Three tests will be conductedin which the candidate will be posted as the chief ofsection and will be required to execute commandssimilar to those given in c below.

134 TAGO 1992C

6. Special Instructions.(1) The gunner's quadrant will be set at zero for

the first test.(2) Each succeeding test will require a change

of quadrant elevation setting within thelimits of 30 to 60 mils.

(3) The candidate will be posted with the gun-ner's quadrant in his hand..

(4) An assistant, selected by the candidate, willbe posted as the gunner to operate the ele-vating handwheel.

(5) On models having no leveling surface anassistant may be selected to place and steadya leveling plate on the top left tube bosses

-- in order that the gunner's quadrant may beheld on the plate for measurements.

c. Outline of Tests.

Test Examiner commands Action of candidatenumber example)

1 QUADRANT 180 ------ Sets quadrant elevationon gunner's quadrant.Places quadrant on lev-eling surface or levelingplate.

Has assistant elevate ordepress the cluster untilthe quadrant bubble iscentered.

Calls "Ready" and waitsfor examiner to verifylaying.

2 QUADRANT 240 ------ Same as test 1 above.3 QUADRANT 205 ------ Same as test 1 above.

TAGO- 1i992C 135

d. Penalties.(1) No credit willbe allowed if, after each test-

(a) The quadrant elevation is set incorrectly.(b) The quadrant bubble is not properly cen-

tered.(2) No credit will be allowed if the last move-

ment of the tube was not in the direction inwhich it is more difficult to turn the elevat-ing handwheel and the elevating handwheelbrake was not set.

e. Credit.Tilne in seconds, exactly or less than -_ 8 83/ 9Credit- _ .............---- _------- - 2. 0 1. 5 1. 0

87. Displacement Correctiona. Scope of 'rest. One test, consisting of two parts,

will be conducted in which the candidate will beposted as the gunner and will be required to executethe commands given in c below.

b. Special Instructions.(1) Aiming posts will be set out at the pre-

scribed distances.(2) An assistant, selected by the candidate, will

be stationed close to the far aiming post.(3) The examiner will require the candidate to

lay the launcher on an announced deflectionand report "I am ready."

(4) The :far post or the launcher will then bemoved so that a displacement of 5 to 10mils occurs.

(5) The laying of the launcher at the termina-tion of part I will not be disturbed beforebeginning part II.

136 . TAGO 092C-

c. Outline of Test.(1) Part 1.

Examiner commands Action of candidate

CORRECT FOR DIS- Lays the launcher so that thePLACEMENT. far post appears midway be-

tween the near post and thevertical hair of the telescope.

Checks centering of bubbles.Re-lays if necessary.Calls "Ready" and steps clear.

(2) Part II.

Examiner commands Action of candidate

ALINE AIMING POSTS__ Directs assistant in aliningaiming posts.

Calls "Ready" and steps clear.

d. Penalties. No credit will be allowed if-(1) Part L.

(a) The far aiming post does not appear mid-way between the near post and the verticalcross hair of the telescope.

(b) The cross-level or longitudinal-level bub-ble is not centered.

(c) The last motion of traverse was not madefrom left to right.

(2) Part II.(a) The deflection is other than the announced

deflection.(b) The aiming posts are not properly alined.

TAGO 1992C 137

(c) The vertical hair of the telescope is not onthe left edge of the aiming posts.

e. Credit.Part I, time in seconds, exactly

or less than __..------....... 3 3% 3/3 4Credit-.. ------------- 5. 0 4. 0 3. 0 2. 0Part II, no time limit ____--------- _ _ __ ----Credit -______.._.._---------- _ 1.0 ----

88. Measuring Site to Mask

a. Scope of l'est. One test will be conducted inwhich the candidate will be posted-as the chief ofsection and will be required to execute the commandgiven in c below.

b. Special Instructions.(1) The launcher prepared for action, will be

placed 200 to 400 yards from a mask of rea-sonable height.

(2) The cluster will be elevated so that the tubesare 50 to 80 mils above the crest and 30 to 50mils right or left of the highest point of thecrest.

(3) The candidate will take post directly in rearof the cluster.

(4) An assistant, selected by the candidate, willbe stationed at the post of the gunner.

138 TAGO 1992C

c. Outline of Test.

Examiner commands Action of candidate

MEASURE SITE TO Sights along lowest element'ofMASK. lowest center tube and has

the gunner operate the ele-vating and traversing mech-anism until line of sight justclears crest.

Directs the gunner to center thelongitudinal-level bubble byturning elevating knob andcenters cross-level bubble.

Moves to convenient positionand reads elevation from ele-vation scale and micrometer.

Reports "No. (so-and-so), siteto mask (so much)."

d. Penalties. No credit will be allowed if-(1) The line of sight along the lowest element

of the lower center tube does not just clearcrest.

(2) The cross-level or longitudinal-level bubbleis not properly centered.

(3) The elevation scale reading is announced in-correctly.

(4) The last movement of the tube was not inthe direction in which it is more difficult toturn the elevating handwheel.

e. Credit.Time in seconds, exactly or less

than ------------____----- 14 15 16 17Credit --- _-_ -_ __-- --- 4.0 3.0 2.0 1. 5

TAGO 1992C 139

89. Measurincl Elevationa. Scope of Test. One test will be conducted in

which the candidate will be required to measure theelevation by means of the gunner's quadrant.

b. Special Instructions.(1) Pribr to the test the examiner will lay the

cluster at a selected elevation, measure theelevation, and then set the gunner's quad-rant at zero.

(2) On models having no leveling surface onthe top left tube an assistant is selected bythe candidate to steady the leveling plate.

c. Outline of Test.

Examiner commands Action of candidate

MEASURE THE ELE- Places gunner's quadrant onVATION leveling surface or leveling

plate.Levels bubble by raising or

lowering the index arm andturning the micrometerknob.

Announces "No. (so-and-so),elevation (so much)," andhands quadrant to examiner.

d. Penalties. No credit will be allowed if-(1) The quadrant bubble is not centered when

the quadrant is seated properly.(2) The elevation is announced incorrectly.

e. Credit.Time in seconds, exactly or less than_ - 8 9% 1035Credit -------..------------------- 4. 0 3. 0 2. 0

140 TAGO 1992C

90. Referring the Launchera. Scope of Test. One test will be conducted in

which the candidate will be posted as the gunner andwill be required to measure and report a deflection.

b, Special Instructions.(1) The launcher will be laid on aiming posts

to the left front.(2) An aiming point within 200 mils to the

left or right of the aiming posts will bedesignated by the examiner and identifiedby the candidate.

c. Outline of Test.

Examiner commands Action of candidate

NUMBER (SO-AND-SO), Centers cross-level and longi-AIMING POINT, THAT tudinal-level bubbles.(SO-AND-SO), REFER Refers to aiming point.

Checks centering of bubblesand re-lays telescope if nec-essary.

Reads deflection and reports,"No. (so-and-so), deflection(so much)" and steps clear.

d.. Penalties. No credit will be allowed if-(1) The cross-level or longitudinal-level bubble

is not centered properly.(2) The vertical hair of the telescope reticle is

not on the aiming point.(3) The deflection is announced incorrectly.(4) The traversing handwheel is turned.

e. Credit.Time in seconds, exactly or less

than ---------------------- 5 5 ' 6 6%SCredit ------------ 5.0 4.0 3. 0 2. 5

TAGO 1992C 141

91. Test and Adjustment of Sighting and Fire Con-trol Equipment

a. Scope of :Test. Five tests will be conducted inwhich the candidate will be required to demonstratethe methods employed in making the prescribed testsand adjustments, or describe the action taken (i. e.,send to the ordnance maintenance company) if ad-justment is not authorized to be made by using per-sonnel.

b. Special Instructions.(1) The launcher will be prepared for the tests

as indicated in paragraph 42.(2) The equipment that will be needed for the

tests includes bore sights, testing target, andgunner's quadrant.

(3) The candidate will select assistants who willoperate the elevating handwheel at the di-rection of the candidate during tests 1 and2 and adjust and aline the testing target atthe direction of the candidate prior to test 5.

(4) The tests will be conducted in the sequenceindicated in c below. After completion oftest 2, the gunner's quadrant used in tests 1and 2 will be used for test 4, with the propercorrection, as determined in test 1, carriedon the quadrant, provided the correctiondoes not exceed 0.4 mil.

(5) Adjustment which the candidate may be re-quired to accomplish will fall within the fol-lowing limits:

(a) Elevation scale, not to exceed one 100-milgraduation.

142 TAGO 1992C

(b) Elevation micrometer scale, not to exceedten 1-mil graduations.

(c) Slipping azimuth micrometer scale, notto exceed ten 1-mil graduations.

c. Outline of Tests.

number

1P E R F O R M E N D - Performs test as prescribedFOR-END TEST in paragraph 48.ON GUNNER'S Calls "Correction (soQUADRANT many) mils, quadrant

serviceable (unservice-able)" and hands quad-rant to examiner forverification.

2 PERFORM MICROM- Performs test as prescribedETER TEST ON in paragraph 48.GUNNER'S QUAD- Calls "Quadrant microm-RANT eter is (is not) in error"

and states any furtheraction that should betaken.

3 TEST LEVELS ON Performs tests and makesT E L E S C O PE adjustments, if neces-MOUNT sary, as prescribed in

paragraph 49c and d.Calls "Cross- (longitudi-

nal-) level bubble(s)within (without) allow-able limit."

4 TEST ELEVATION Performs tests and makesSCALE AND MI- adjustments, if neces-CROMETER sary, as prescribed in

paragraph 49e.Calls "Ready" and steps

clear.

TAGO 1992C 143

TestbTest | Examiner commands Action of candidatenumber

Note: Prior to test 5, the cross and longitudinal leveling of the tube and thepanoramic telescope mount will be verified by the examiner, and the testingtarget will be alined by the candidate with the help of his selected assistants asdescribed in paragraph 45.

5 BORE SIGHT THIE Bore sights as described inLAUNCHER paragraph 44.

Calls "Ready" and stepsclear.

d. Penalties.(1) General. The tests are not essentially speed

tests. The purpose of the prescribed timelimits is to insure that the candidate canperform the operation without wasted ef-fort.

(2) Test 1. No credit will be allowed if-(a) The bubble of the gunner's quadrant does

not center when verified by the examiner.(b) The necessary correction (one-half of the

amount of the angle which was indicatedwhen the quadrant was first reversed andthe bubble centered by moving the indexarm and micrometer) is announced incor-rectly by the candidate.

(c) The candidate fails to declare the quad-rant; unserviceable if the necessary cor-rection exceeds 0.4 mil, or fails to declarethe quadrant serviceable if the necessarycorrection is 0.4 mil or less.

(d) The time to complete the test exceeds 2minutes.

144 TAGO 1992C

(3) Test 2. No credit will be allowed if-(a) The procedure is not followed correctly.(b) The time to complete the test exceeds 1

minute.(4) Test 3. No credit will. be allowed if-

(a) The candidate does not announce cor-rectly in regard to the status of either thecross-level or the longitudinal-level bub-ble.

(b) The time to complete the test and adjust-ments exceeds 4 minutes.

(5) Test 4. No credit will be allowed if-(a) The procedure was not followed correctly

and the elevation scales do not read zerowhen the cluster is leveled longitudinallywith the gunner's quadrant.

(b) The candidate fails to announce the cor-rect action if the elevation scales do notagree with the elevation set on the gun-ner's quadrant within 11/2 mils at any ofthe elevations compared.

(c) The time to complete the test and adjust-ments exceeds 3 minutes.

(6) Test 5. No credit will be allowed if-(a) The candidate fails to make any adjust-

ment when such adjustment is indicated.(b) The index lines on the telescope and the

holder bracket are not matched.(c) The elevation scale and micrometer do not

read zero.(d) The azimuth scales and the azimuth mi-

crometer scale do not read zero.

TAGO 1992C 270493'-53-10 :145

(e) The center line of the bore, as viewedthrough the bore sights, or the line ofsight of the telescope do not fall on theirrespective aiming diagrams on the testingtarget when all scales are set at zero.

(/) The time to complete the tests and ad-justments exceeds 4 minutes and 30seconds.

e. Credit.(1) The candidate will be scored on the general

merit of his work in addition to the specificrequirements above.

(2) If the tests and adjustments are performedcorrectly within the prescribed time limit,maximum credit will be given as follows:

Test 1--__----------_____-______________ 2Test 2 -----------___--------_--- -___-__ 1Test 3_ _____------________---__________ 1Test 4--____-- __________________________ 2Test 5 --------------------------------- 4

Total ______________… _- --___________ 10

92. Materiel

a. Scope of Tests. The candidate will be requiredto perform two tests as outlined below.

b. Special Instructions.(1) Test 1. For test 1, the tools and accessories

necessary for the performance of the testwill be made readily available to the candi-date prior to the start of the test.

(2) Test Al.

(a) A complete set of lubrication equipmentauthorized for use of battery personnel

146 r TAGO 1992C

will be made conveniently available on apaulin adjacent to the gun.

(b) Every type of lubricant used on the gunwill be placed in plainly labeled contain-ers conveniently on the paulin.

e. Outline of Tests.

number

1 DEMONSTRATE Performs the operations(a) INSERTING as described in TM

(REMOVING) 9-392A.SAFETY PLUG.

(b) CHANGINGFROM GENER-ATOR POWERTO BATTERYPOWER.

(c) TESTING FIR-ING CIRCUIT.

EXPLAIN(a) PROCEDURE Explains the procedures

TO BE FOL- indicated in paragraphLOWED IN 71.EVENT OF MIS-FIRE.

(b) DESTRUCTION Explains the proceduresPROCEDURE. indicated in TM 9-

392A.2 PERFORM DAILY, Selects proper lubricating

WEEKLY, AND equipment and lubricantMONTHLY LU- and tells how, when, andBRICATION TEST. with which lubricant

each lubrication pointis serviced. (Actual lu-brication is not per-formed.)

TAGO 1992C 147

d. Penalties.(1) The tests are not essentially speed tests.

The purpose of the maximum time limitsis to insure that the candidate can performthe operations without wasted effort.

(2) No credit will be given-if the following timelimits are exceeded:

Test 1--__--_--_---------_______ 5 minutesTest 2__…_--------____------_-_- 6 minutes

(3) A penalty of one point will be assessed foreach component part of test 1 incorrectlydemdrstrated or explained.

(4) A penalty of one-half of a point will beassessed for each lubrication point missedor lubricated improperly, and for each timethe proper lubricating device or proper lu-bricant is not selected.

e. Credit.(1) The candidate will be scored on the general

merit of his work in addition to the specificrequirements above.

(2) A maxirhum credit of five points will begiven for test 1 and a maximum of 10 pointswill be given for test 2.

148 TAGO 1992C

APPENDIX

REFERENCES

1. Miscellaneous PublicationsAR 600-70 Badges.AR 750-5 Maintenance Responsibilities and

Shop Operation.ATT 6-3 Field Artillery Rocket Battery and

Battalion Tests.SR 110-1-1 Index of Army Motion Pictures,

lKinescope Recordings, and FilmStrips.

SR 310-20- Military Publications.series

SR 320-5-1 Dictionary of United States ArmyTerms.

SR 320-50-1 Authorized abbreviations.SR 385-310-1 Regulations for Firing Ammunition

for Training, Target Practice, andCombat.

SR 615-25-15 Military Occupational Specialties.SR 615-25-20 Career Fields.FM 5-15 Field Fortifications.FM 5-20 Camouflage, Basic Principles.FM 5-20B Camouflage of Vehicles.FM 5-20D Camouflage of Field Artillery.FM, 5-25 Explosives and Demolitions.FM 6-40 Field Artillery Gunnery.FM 6-101 The Field Artillery Battalion.

r.TAO 19920 149

FM 6-125 Qualification Tests for Specialists,Field Artillery.

FM 6-140 The Field Artillery Battery.FM 21-5 Military Training.FM 21-8 Military Training Aids.FM 21-30 Military Symbols.FM 21-40 Defense Against Chemical Attack.FM 25-10 Motor Transport.TM 3-220 Decontamination.TM 6-605 Field Artillery Individual and Unit

Training Standards.TM 9-392A 4.5-Inch Multiple Rocket Launcher

T123.TM 9-575 Auxiliary Sighting and Fire Control

Equipment.TM 9-850 Abrasive, Cleaning, Preserving, Seal-

ing, Adhesive, and Related Materi-als Issued for Ordnance Materiel.

TM 9-1527 Ordnance Maintenance: Gunner'sQuadrants M1 and M1918, andMachine Gun Clinometer M1917.

TM 9-1545 Ordnance Maintenance: TelescopeMounts, and Range and Eleva-tion Quadrants for Motor Car-riages, Field Artillery and Antiair-craft Artillery.

TM 9-6111 Ordnance Maintenance: PanoramicTelescopes, All Types.

TM 9-1900 Ammunition, General.TM 9-1901 Artillery Ammunition.TM 9-1950 Rockets.TM 9-2300 Artillery Materiel and Associated

Equipment.

150 TAGO 1992C

TM 21-300 Driver Selection and Training,Wheeled Vehicles.

TM 21-305 Driver's Manual.TM 9-2810 Tactical Motor Vehicle Inspections

and Preventive Maintenance Serv-ices.

T/O&E 6-87 Field Artillery Battery, 4.5-InchRocket, Truck-Drawn.

TF 3-1407 Decontamination Procedures.

2. DA ORD Supply Manuals3 SNL R-1 Ammunition for Light Artillery.3 SNL S-6 Ammunition Instruction Material

for Aircraft Bombs, Grenades,Pyrotechnics, and Rockets.

3 SNL S-9 Rockets, All Types and Compo-nents.

3 SNL R-3 Service Fuzes and Primers for Pack,Light and Medium Field, Air-craft, Tank, and Antitank Ar-tillery.

(*) SNL C-90 Launcher, Rocket, Multiple, 4.5-Inch, T123.

3 SNL R-7 Land Mines and Fuzes, DemolitionMaterial, and Ammunition forSimulated Artillery and GrenadeFire.

3 SNL K-1 Cleansers, Preservatives,. Lubri-cants, Recoil Fluids, Special Oils,and Related Maintenance Ma-terials.

(*) See, ORD 1 for published manuals of the ordnancesection of the Department of the Army Supply Manual.

TAGO 1992C 151

3 SNL K-2 Items of Soldering, Metallizing,Brazing, and Welding Materials;Gases and Related Items.

(*)SNL K-3 Lubricating Equipment, Accesso-ries, and Related Dispensers.

(*) SNL F-205 Light, Aiming Post, M14; LightInstrument Ml, M2, M3, M4,M5, M6, M7, M8, M9, M10,M12, M13, M15, M16, M17,M18, M19, M20, M21, M22,M23, M24, M25, M26, M27,M28, M29, M30, M31, M32,M33, M34, M35, M36 (T1'10),M39C, T9, and T16.

(*) SNL F-323 Mount, Telescope, M79.(*) SNL F-35 Posts, Aiming.(*) SNL F-14-0 Quadrant, Gunner's, M1 (mils).(*) SNL F-262 Telescope, Elbow, M62.

3. DA FormsDA Form 9-3 Processing Record for Shipment

and Storage of Vehicles andBoxed Engines (Tag).

DA Form 460 Preventive Maintenance Roster.DA Form 468 Unsatisfactory Equipment Report.DA Form 811 Work Request and Job Order.DA Form Work Request and Hand Receipt.

811-1.DA Form 867 Stal us of Modification Work Order.DD Form 6 Report of Damaged or Improper

Shipment.

(*) See ORD 1 for published manuals of the ordnancesection of the Department of the Army Supply Manual.

152 TAGO ]J9)2(:

INDEX

Para-graphs Page

Aiming:Circle method, bore sighting -------___ 46 89Points and displacement corrections --- 29 66Point method (distant) bore sighting . 44 87

Ammunition:Attained, standards to be -----------_ 76 121Care of_ ---------------- _ 38 79Decontamination for chemical agents___ 63 112Safety precautions ------------------- 70 117

Automotive equipment, decontamination forchemical agents ----------------------_ 63 112

Biological and radiological agents, decon-tamination ----- ----_ . _....._ 64 113

Blast deflector ---------- - ---___ 31 72Bore sights ----------------------------- 33 72Bore sighting and basic periodic tests:

Basic periodic tests:General ---- _.---- --------- ---- 47 92Ordnance check ----------------- 50 99Test of gunner's quadrant ------- 48 93Test of telescope and mount ____- _ 49 95

Bore sighting:Aiming circle method ------------ 46 89Distant aiming point method ----- 44 87General __----------------- 43 85Testing target method ------- - 45 88

General:Conditions --- -------- --------__ 47 92Equipment --------------------- 41 82Leveling ----------------------- 42 84Purpose and scope --------------- 40 82

Care of ammunition -------_-_---------__ 38 79Cease firing - ___------------------------_ 36 77

TAGO 1992C 153

Para-graphs Page

Change posts ..---------------.--.-----. 10 11Check, ordnance :--------_---_----------- 50 99Chemical agents, decontamination ------- 63 112Chief of section:

Duties in:Inspection before march -------- 56 102Inspection during march --------- 57 104Inspection during the halt___------- 58 105Weekly inspection and maintenance_ 61 110

Indirect laying ------------.--------- 21 30Inspection:

Duties and maintenance..---------- 60 108Prior to and during firing --------- 59 107

Commands and formations, preliminary:To change posts ---------.- ---- 10 11To dismount --------------------- 12 15To fall out _------------------------ 13 15To form the section ------------------ 8 10To mount ----------------------- 11 14Posts of the section ------------------ 9 11

Composition of the launcher section, organi-zation- - __---------.--------- ----- 4 7

Conditions, bore sighting and basic periodictests ------------------------------ 47 92

Conduct of fire, direct fire ----------------- 27 62Conduct of training ---.------------- 75 120Correction for displacement of aiming posts. 29 66Correction, displacement ----------------- 87 136Couple _-_-------------------------- 19 28Coupled, definitions and terms ------------ 2 3Cross-level test, test of telescope and mountn 49 95

Data board, section ------------------ 39 81Decontamination of equipment:

Biological and radiological agents------ 64 113Chemical agents--------------------- 63 112Equipment, general------------------ 62- 65 112References ------------------------ 65 114

Definitions and terms, general _ .-------- - 2 3Deflection only, indirect laying------------ 84 130

154 TAGO 1992C

Para.Ugaphs Page

Deflector, blast ------------------------ - 31 72Description, bore sighting …_…------------ _ 43 85Destruction of equipment:

General ----------- -------- -------- _ 66-68 115M ethod _---- _-------- ------- ------_ 67 116References -------------__ ---- --- --- 68 116

Detailed decontamination, decontaminationfor biological and radiological agents----- 64 113

Direct fire:Conduct ------------------- - - 27 62General --------------------------- 25 60Range card-------------------------- . 26 61

Direction ------------------------------ 15 20Direct laying, panoramic telescope------- 83 127Disassembly, adjustment, and assembly-- . .. 52 100Dismount ---------- ------------- 12 15Displacement correction ----- ------- 87 136Displacement corrections, aiming points and_ 29 66Distant aiming point:

Aiming points and displacement correc-tions -------------------------- 29 66

Method ----------_---------- --- 44 87Drill and firing, safety precaution ------- _ 69-72 117Driver:

Duties in inspection before march ----- 56 102Duties in inspection during march ----- 57 104

Duties in firing:Direct fire:

Conduct ---------------_- 27 62General ------------------------ 25 60Range card ------------------ 26 61

Indirect fire:Chief of section ------------- 21 30Duties of individuals------------- 20 29Gunner------------------------- 22 40No. 1 (assistant gunner) --------- 23 54Nos. 2 and 3-------------------- 24 59

Duties and maintenance after operation, in-spection ---- __.. -------- -- 60 108

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Duties in inspection during the halt-------- 58 105Duties in weekly inspection and maintenance_ 61 110Duties of individuals -- _ _------- ----- 20. 29Duties of personnel, general -------------- 5 7

Elevation, measuring --�_: ---- _---------- 89 140Elevation mechanism test, test of telescope

and mount ---.......------------------------ 89 140Elevation with gunner's quadrant, laying_._ 86 134Elevation with elevation scales, laying - _ 85 133End-for-end test, test of gunner's quadrant-_ 48 93Equipment:

Bore sighting and basic periodic tests_- 41 82Decontamination --------- -------- 62 112Destruction ------------------------ 66-68 115

Failure to fire .------------------------ 71 118Fall out, to_ ---..---------------------.......... 13 15Fire, failure ..------------------------ 71 118Fire precautions ---------- -------- 69 117

-Firing and drill_ ............-.......-- 72 119Firing and traveling, preparing the launcher_ 14-19 18Firing, cease --------------------------- 36 77Firing, duties in ..-....................... 20-27 29Form the section, to -------------------- 8 10Front, definitions and terms--------------- 2 3

Gun, referring ------------------- 90 141Gunner, duties in inspection before march_-- 56 102Gunner, duties in inspection during march.__ 57 104Gunner, indirect laying --------------- 22 40Gunner's quadrant, leveling- ---------__- - 42 841Gunner's quadrant, test ___--------------- 48 93

Indirect laying, deflection only ------------ 84 130Indirect laying:

Chief of section ------------------- 21 30Duties of individuals ...-------------- 20 29Gunner ---.------------------------ 22 40No. 1 (assistant gunner) ----------- 23 54Nos. 2 and 3 _.-- ___-_--------------- 24 59

Individuals, duties -------- ------- ----- 20 29

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Individual periods, minimum training sched-ule ----------------------------------- 78 122

Inspections:Before march, duties .---------------_ 56 102Duties and maintenance after operation_ 60 108Duties prior to and during firing -_---- 59 107During march, duties -- _-_-_--------_ 57 104During the halt, duties --------------- 58 105

Inspection and maintenance, general -------- 51-61 100Instructions, general -------------------- 6 9Instruments, decontamination for chemical

agents ------------------------------- 63 112

Launcher loaded, traveling with -_ . ......__ 32 72Launcher not level, leveling ----- _---- 42 84Laying for elevation with elevation scales -_ 85 133Laying for elevation with gunner's quadrant_ 86 134Laying, precision ------------------------ 28 66Leveling ------------------------------ 42 84Leveling surface, models having no ------- 34 74Longitudinal-level tests, test of telescope and

mount -- _---------------------- -- 49 95

Maintenance and inspection:Disassembly, adjustment, and assembly. 52 100Duties in inspection before march ----- 56 102Duties in inspection during march __--- 57 104Duties in inspection during the halt ---- 58 105Duties in weekly inspection and main-

tenance ---------------------- 61 110General ---------------------------- 51-61 100Inspections ------------------------ 55 101Inspection duties and maintenance after

operation ---------------- - 60 108Inspection duties prior to and during

firing ----------------- - - 59 107Maintenance -------------_----- 54 101Records ---------------------- 53 100

M ateriel -- ----------------------------- 92 146Mask, measuring site to ------------------ 88 138Measuring, elevation ------- __-------- 89 140

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Measuring site to mask_ ---------- ___ 88 138Method, bore sighting -- _--------------__ 43 85Methods, destruction of equipment -------- 67 116Minimum training schedule:

General ------------ _-------_----- 77 121Individual periods ---------- ____ 78 122Schedule ---------- ------ _ 79 123

Models having no leveling surface --------- 34 74Mount, to ----- - ------------- 11 14Movement of launcher by hand ----------_ 16 20

No. 1 (assistant gunner) ---------- 23 54No. 1 duties in inspection before march - 561 102Nos. 1 to 3, duties in inspection during

m arch - ------------------------------ 57 104Nos. 2 and 3 --- -___-___________________ 24 59

Objective, section drill ------------------- 6 9Objectives, training ------------------- 74 120Ordnance check, basic periodic tests -- -- 50 99Organization:

Composition of the launcher section --- 4 7General duties of personnel ----------- 5 7

Outline of tests ...............- _........- 82 127

Panoramic telescope, direct laying -------- 83 127Personnel, general duties of ----------- 5 7Plumb line, equipment .--------- __ 41 82Position for emplacement of launcher, prep-

aration of ------------------------- 30 70Posts, change to ..--. 10 11Posts, of the section --------------------- 9 11Precautions, safety --------------------- 69-72 117Precision in laying ----__ ------------- 28 66Preliminary commands and formations:

General ---------------------------- 8-13 10Posts of the section ----------------- 9 11To change posts--------------------- 10 11To dismount --------------- 12 15To fall out ------------------------- 13 15To form the section ------------- 8 10To mount -------------------------- 11 14

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Preparations for firing:Direction -----------------------_-_ 15 20Movement of launcher by hand ---- _ 16 20To prepare for action ------ _--------_ 17 20To uncouple ----------- _-__ ------- _ 14 18

Preparations for traveling:Direction -------------- - . ........._ 15 20Movement of launcher by hand ------ _ 16 20To couple -------------------------- 19 28To prepare for action -------- _-_----_ 17 20To prepare for travel (march order) 18 24To uncouple ------------------------ 14 18

Preparation of position for emplacement oflauncher ----------------------------- 30 70

Prepare for travel (march order) ------ _ 18 24Purpose and scope:

General ---------------------------- 1, 40 3, 82Tests for qualification of gunners ----- _ 80 124Training ----------------- _--------_ 73 120

Qualification of gunner, tests -80-92 124

Radiological and biological agents, decon-tamination -------------------------- _ 64 113

Range card, direct fire ------------------- 26 61Records, inspection and maintenance_______ 53 100References:

Decontamination of equipment -------- 65 114Destruction of equipment ----------- _ 68 116General ---------------------------- 3 6

Referring the gun ----------------------- 90 141Right (left), definitions and terms --------- 2 3Rough decontamination for biological and

radiological agents ---------------- _ 64 113

Safety precautions:Ammunition -------------------- __-- 70 117Drill and firing ---------------------- 72 119General ---------------------- _----_ 69 117Removing a round ------------------- 71 118

Schedules, minimum training schedule ----- 79 123

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Scope and purpose:Bore sighting and basic periodic tests.__ 40 82This manual -----------------------_ 1 3Training --------------- 73 120

Scribed lines ---- ----------- ------------ 42 84Section, chief of, indirect laying ------- 21 30Section data board .---------------------- 39 81Section, definitions and terms ---------- 2 3Section drill:

Instructions ----------- - ___- 7 9Objective -------- -- -- -- -- -- --- 6 9

Sights, bore -__--- ------ ---------- 33 72Sighting and fire control equipment, test and

adjustment -.-------------- ___ - __-. .91 142Spade pit ---------------------- _-_-----_ 30 70Standards to be attained ------ __--------_ 76 121

Target, testing ..-....................... 35 74Techniques and situations that require spe-

cial attention:Aiming points and displacement cor-

rections ..-------------------------- 29 66Blast deflector- --------------------- 31 72Bore sights ..-... .................. 33 72Care of ammunition --- ____ - -- ____- - 38 79Cease firing ------------------------- 36 77Models having no leveling surface ---- _ 34 74Precision in laying ------------------- 28 66Preparation of position for emplace-

ment of launcher ------------------ 30 70Testing target ---------------------- 35 74To unload --------------------- _---- 37 78Traveling with launcher loaded ------- 32 72Section data, board ------------------ 39 81

Telescope and mount. test - ...........__ 49 95Telescope mount, alinement tests, test of tele-

scope and mount -__-_____-__.____ ___-- 49 95

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Testing target, techniques and situations thatrequire special attention- -_------------ 35 74

Testing target, equipment --------------- _ 41 82Test and adjustment of sighting and fire con-

trol equipment ------------------------ 91 142Test of gunner's quadrant, basic periodic

tests ----------------------------- - 48 93Tests for qualification of gunners ------- - 80-85 124Test of telescope and mount, basic periodic

tests ---------------------- --- - 49 95Terms and definitions ---------- _. ....... 2 3Tools, equipment ___--------------- __ 41 82Training:

Conduct of ------------- - · 75 120General --------------------------- 73-92 120General instructions ------- ----- 81 124Individual periods ----------- 78 122Materiel -------------------- _ 92 146Objectives _…--------------- ----. 74 120Outline of tests -------------- -- 82 127Purpose and scope-_ 73, 80 120, 124Schedule ---------------------- - 79 123Standards to be attained --------- - 76 121Test and adjustment of sighting and fire

control equipment ----------------- 91 142Traveling, preparations ------------------ 18, 9 24, 28Traveling with launcher loaded --------- 32 72Trench for firing: Preparation of position for

emplacement of launcher ------- _ 30 70

Uncoupled, definitions and terms ---------- 2 3Uncouple _------------------------ 14 18Unload -------------------------- ---- 37 78

Weapons, decontamination for chemicalagents ------------- - -------- 63 112

Weekly inspection and maintenance, duties_ 61 110

[AG 472.9 (15 Jun 53)]

TAGO 1992C 161

By ORDER OF TEE SECRETARY OF THE ARMY:

M. B. RIDGWAY,General, United States Army,

OFFICIAL: Chief of Staff.WM. E.'BERGIN,

Major General, United States Army,The Adjutant General.

DISTRIBUTION:

Active Army:Tech Svc (1); Tech Sve Bd 5, 9, 11 (1); AFF (10);

AA Comd (2); OS Maj Comd (2); Base Comd(2); MIDW (2); Log Comd (2); A (2); CHQ (2);Div ('2); Brig 6 (2); Regt 6 (2); FT-(1); USMA(5); Sch (2) except- 6 (300); P-MS: & -T 6 (1);RTC 6 (100); PRGR- 9 (2); T/O & E's, 6-85 (2);6-86 (5); 6-87 (10).

NG: None.Army Reserve: None.For explanation of distribution formula, see SR 310 90-1.

162: TAGO 1992Ce

U. 5. GOVERNMENT PRINTING OFFICE: 1953