T M 5 5 - 2 3 3 0 - 2 0 0 - 1 5 - 1

TECHNICAL MANUAL

T R A N S P O R T A B I L I T Y G U I D A N C E

S E M I T R A I L E R S , 1 2 - T O N , 4 - W H E E L

Semitrailer, Stake: M 1 2 7 , M 1 2 7 A 1 , M 1 2 7 A 1 C , M 1 2 7 A 2 C

S e m i t r a i l e r , V a n C a r g o : M 1 2 8 A 1 C , M 1 2 8 A 2 C

S e m i t r a i l e r , V a n , S u p p l y : M 1 2 9 A 1 C , M 1 2 9 A 2 C

S e m i t r a i l e r , T a n k , F u e l ,

5 , 0 0 0 - G a I l o n : M 1 3 1 A 2 , M 1 3 1 A 4 , M 1 3 1 A 5

S e m i t r a i l e r , T a n k , F u e l -

S e r v i c i n g , 5 , 0 0 0 - G a l l o n M 1 3 1 A 3 C , M 1 3 1 A 4 C , M 1 3 1 A 5 C

S e m i t r a i l e r , L o w - B e d ,

W r e c k e r : M 2 6 9 , M 2 6 9 A 1 , M 2 7 0 , M 2 7 0 A 1

S E M I T R A I L E R , 1 5 - t o 2 5 - T O N , 4 - W H E E L

S e m i t r a i l e r , L o w - B e d , 1 5 - T o n , M 1 7 2

S e m i t r a i l e r , L o w - B e d , 2 5 - T o n , M 1 7 2 A 1

H E A D Q U A R T E R S , D E P A R T M E N T O F T H E A R M Y

J U L Y 1 9 7 6

*TM 55-2330-200-15-1

TECHNICAL M ANUAL HEADQUARTERSDEPARTMENT OF THE ARMY

No. 55-2330-200-15-1 WASHINGTON , D. C., 30 July 1976

TRANSPORTABILITY GUIDANCE

SEMITRAILERS, 12-TON, 4-WHEEL

SEMITRAILER, STAKE: M127, M127A1, M127A1C, M127A2C

SEMITRAILER, VAN, CARGO: M128A1C, M128A2C

SEMITRAILER, VAN, SUPPLY: M129A1C, M129A2C

SEMITRAILER, TANK, FUEL, 5,000-GALLON: M131A2, M131A4, M131A5

SEMITRAILER, TANK, FUEL-SERVICING, 5,000-GALLON: M131A3C,

CHAPTER

S e c t i o n

1.

2.I.

II.

3.

M131A4C, M131A5C

SEMITRAILER, LOW-BED, WRECKER: M269, M269A1,

M270, M270A1

SEMITRAILERS, 15- to 25-TON, 4-WHEEL

SEMITRAILER, LOW-BED, 15-TON, M172

SEMITRAILER, LOW-BED, 25-TON, M172A1

INTRODUCTIONPurpose and scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Reporting of recommendations and comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Definitions or warnings, cautions, and notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TRANSPORTABILITY DATAGENERALScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Deacriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CHARACTERISTICS AND RELATED DATAGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Side and rear elevation drawings.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Reduced configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Unusual characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CONUS freight classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SAFETYGeneeral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Specific safety requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

* This manual supersedes TM 55-2330-207-10-2, 18 November 1968; TM 55-2330-207-20-1, 22 July1969: TM 55-2330-207-20-2, 22 July 1969; TM 55-2330-208-20-1, 20 March 1968; TM 55-2330-211-10-1, 1

Paragraph Page

1-1 1-11-2 1-11-3 1-11-4 1-1

2-1 2-12-2 2-1

2-3 2-62-4 2-62-5 2-162-6 2-162-7 2-17

3-1 3-13-2 3-1

October 1963; TM 55-2330-211-10-2, 21 October 1963; TM 55-2330-211-20-3, 27 September 1968; TM 55-2330-220-20-1, 4 September 1968.

TM 55-2330-200-15-1

C HAPTER 4.Section I.

II.

III.

C HAPTER 5.

6.

7.Section I.

II.

III.

A PPENDIX A .

B.

AIR TRANSPORTABILITY GUIDANCEGENERALScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Maximum utilization of aircraft . . . . . . . . . . . . . . . . . . . . . . . .Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TRANSPORT BY US AIR FORCE AIRCRAFTAircraft capabilities . . . . . . . . . . . .Typical loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Material requirements . . . . . . . . . . . . . . . . . .Piggyback loads for C-5 aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TRANSPORT BY US ARMY AIRCRAFTFixed-wing aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Rotary-wing aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

HIGHWAY AND OFF-ROAD TRANSPORTABILITY GUIDANCEScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Safety . . . . . . . . . . . . . . . . . . . . . . . . . . .Movement on own wheels . . . . . . . . . . . . . . . . . . .Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Piggyback transport . . . . . . . . . . . . . . . . . . . . . .

MARINE AND TERMINAL TRANSPORTABILITY GUIDANCEScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .General rules for stowing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Special design vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RAIL TRANSPORTABILITY GUIDANCEGENERALScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Maximum utilization of railcars . . . . . . . . . . . . . . . . . . . . .TRANSPORT ON CONUS RAILWAYSGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Preparation of vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Loading semitrailers on general-purpose flatcars . . . . . . . . . . . . . . . . . . . . . . . . .Loading semitrailers on special-purpose flatcars . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Double-decking of semitrailers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TRANSPORT ON FOREIGN RAILWAYSGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Transport on US Army-owned foreign service flatcars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CONVERSION TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Paragraph

4-14-24-34-4

4-54-64-74-8

4-94-10

5-15-25-35-45-5

6-16-26-36-4

7-17-2

7-37-47-57-67-7

7-87-9

Page

4-14-14-14-1

4-24-24-24-2

4-74-7

5-15-15-15-15-1

6-16-16-16-5

7-17-1

7-17-17-17-47-7

7-97-9

A-1

B-1

2

TM 55-2330-200-15-1

LIST OF ILLUSTRATIONS

Figure No.

2-1.2-2.2-3.2-4.2-5.2-6.2-7.2-8.2-9.2-10.2-11.2-12.2-13.2-14.2-15.2-16.2-17.4-1.4-2.4-3.5-1.

5-2.

6-1.6-2.7-1.7-2.7-3.7-4.7-5.7-6.

No.

2-1.2-2.4-1.4-2.4-3.6-1.

6-2.

7-1.

7-2.

7-3.

Title

Semitrailer, stake, 12-ton, 4-wheel, M127A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Semitrailer, van, cargo, 12-ton, 4-wheel, M128A1C . . . . . . . . . . . . . . . . . . . . . . . .Semitrailer, van, supply, 12-ton, 4-wheel, M129A1C . . . . . . . . . . . . . . . . . . . . . . .Semitrailer, tank, fuel, 5,000-gallon, 4-wheel M131A2 . . . . . . . . . . . . . . . . . . . . . . . . .Semitrailer, low-bed, wrecker, 12-ton, 4-wheel, M269A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Semitrailer, low-bed, wrecker, 12-ton, 4-wheel, M270A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Semitrailer, low-bed, 25-ton, 4-wheel, M172A1 . . . . . . . . . . . . . . . . . . . . . . . . .Side elevation semitrailer, stake, 12-ton, 4-wheel, M127A1C . . . . . . . . . . . . . . . . . . . .Rear elevation, semitrailer, stake, 12-ton, 4-wheel, M127A1C . . . . . . . . . . . . . . . . . . . . . . . .Side elevation, semitrailer, van, cargo, 12-ton, 4-wheel, M128A1C . . . . . . . . . . . . . . . . .Rear elevation, semitrailer, van, cargo, 12-ton, 4-wheel, M128A1C . . . . . . . . . . . . . . . . . . . . . . .Side elevation, semitrailer, tank, fuel, 5,OOO-gallon, 4-wheel, M131A4 . . . . . . . . . . . . . . . . Rear elevation, semitrailer, tank, fuel, 5,OOO-gallon, 4-wheel, M131A4 . . . . . . . . . . . . . . . . .Side elevation, semitrailer, low-bed, wrecker, 12-ton, 4-wheel, M270 . . . . . . . . . . . . . . . .Rear elevation, semitrailer, low-bed, wrecker, 12-ton, 4-wheel, M270 . . . . . . . . . . . . . . . . .Side elevation, semitrailer, low bed, 25-ton, 4-wheel, M172A1 . . . . . . . . . . . . . . . . . . . . . Rear elevation, semitrailer, low bed, 25-ton, 4-wheel, M172A1 . . . . . . . . . . . . . . . . . . . . .Tiedown diagram for M127A1C in C-130 aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tiedown diagram for M269 in C-141 aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tiedown diagram for M128A1C in C-5 aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Turning-characteristics diagram for semitrailer, tank, fuel, 5,000-gallon, M131A4, towed by truck,

tractor, M52 . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Turning-characteristics diagram for semitrailer, low-bed, wrecker, 12-ton, M270A1, towed by truck,

tractor, wrecker, M246 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Lifting diagram for M128A1C using eight-wire sling and heavy-lift spreader bars . . . . . . . . . . . . . . . . .Typical blocking and tiedown of 12-ton semitrailer, 4-wheel, in hold of general-cargo vessel . . . . . . . . . .Blocking and tiedown diagram of typical 12-ton semitrailer on CONUS general-purpose flatcar . . . . . . .Blocking and tiedown details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Example of a 75-foot TTX flatcar with retractable hitches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Example of a semitrailer loaded on a flatcar with retractable hitches . . . . . . . . . . . . . . . . . . . . . . . . . . .Typical load of semitrailers on a flatcar with retractable hitches . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Example of double-decked semitrailers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page

2-12-22-32-42-42-52-62-72-82-9

2-102-112-122-132-142-152-16

4-34-44-5

5-2

5-36-26-47-27-37-67-67-77-8

LIST OF TABLES

Title Page

Characteristics and Related Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18Semitrailer Weight Distribution in Pounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19Tiedown Data for M127A1C in C-130 Aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6Tiedown Data for M269 in C-141 Aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6Tiedown Data for M128A1C in C-5 Aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6Bill of Materials for Blocking and Tiedown of Typical 12-Ton Semitrailer in Hold of General Cargo

Vessel . . . . . . . . . . . . . . . . . . . . 6-5Application of Materials for Blocking and Tiedown of Typical 12-Ton Semitrailer in Hold of Genral-

Cargo Vessel . . . . . . . . . . . . . . . . . . 6-5Bill of Materials for Blocking and Tiedown of Typical 12-Ton Semitrailer on CONUS General-Purpose

Flatcars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4Application of Materials for Blocking and Tiedown of Typical 12-Ton Semitrailer on CONUS General-

Purpose Flatcars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4Characteristics of US Army-Owned European Flatcars Available for Transporting Vehicles . . . . . . . . . . . . . . . . . 7-9

3

TM 55-2330-200-15-1

CHAPTER 1

INTRODUCTION

1-1. Purpose and Scopea. This manual provides transportability

guidance for logistical handling and movement of thesemitrailers, 12- to 25-ton, 4-wheel.

b. The intent of this manual is to provide trans-portation officers and other personnel responsiblefor movement or for providing transportation ser-vices with information considered appropriate forsafe transport. Significant technical and physicalcharacteristics, as well as safety considerationsrequired for worldwide movement by the variousmodes of transportation, are included. Whereconsidered appropriate, metric equivalents are givenin parentheses following dimensions or othermeasurements. References are contained in appendixA, and conversion tables are shown in appendix B.

1-2. Reporting of Recommendations and CommentsThe reporting of errors, omissions, and recom-mendations for improving this manual by the in-dividual user is encouraged. Comments should besubmitted on DA Form 2028 (Recommended

Changes to DA Publications and Blank Forms) andforwarded to Director, Military Traffic ManagementCommand Transportation Engineering Agency,ATTN: MTT-TRP, PO Box 6276, Newport News,VA 23606. A reply will be furnished by the Agency.

1-3. SafetyAppropriate precautionary measures required duringmovement of the items are contained in chapter 3.

1-4. Definitions of Warnings, Cautions, and NotesThroughout this manual, warnings, cautions, andnotes emphasize improtant or critical guidance.They are used for the following conditions:

a. Warning. An operating procedure or practicethat, if not correctly followed, could result in per-sonal injury or loss of life.

b. Caution. An operating procedure or practicethat, if not strictly observed, could result in damageto or destruction of equipment.

c. Note. An operating procedure or condition thatmust be emphasized.

1-1

TM 55-2330-200-15-1

CHAPTER 2

TRANSPORTABILITY DATA

Section I. GENERAL

2-1. ScopeThis chapter provides a general description of thesemitrailers, 12- to 25-ton, 4-wheel with iden-tification photographs, tabulated transportabilitycharacteristics, and data necessary for movement ofthese semitrailers.

2-2. DescriptionsThe semitrailers, 12- to 25-ton, 4-wheel, covered inthis manual are of various lengths and body sytles;each has a tubular tandem axle, dual tires, an upperfifth-wheel plate, kingpin, and foot-type landinglegs. The semitrailers are designed for towing overall types of roads, highways, and limited cross-country terrain, in all types of weather. Appropriateprime movers are 5-ton, 6x6, truck, tractor, M52,

M818, or similar vehicles equipped with a fifthwheel. For detailed description and data refer to theapplicable 9-series technical manuals. A briefdescription, with an identification photograph, ofeach of the various semitrailers and body typesfollows:

a. Semitrailers, Stake, M127 (fig 2-1) The 12-ton,M127-series semitrailer is primarily a flatbed trailerwith stake pockets to facilitate the securing ofremovable, interlocking panel sides and ends. Thepanels can be installed and removed by hand withoutspecial tools. The semitrailer is used in themovement of all types of equipment. The differencesbetween models are of minor internal and externalcharacteristics.

Figure 2-1. Semitrailer, stake, 12-ton, 4-wheel, M127A1.

b. Semitrailer, Van, Cargo, M128A1C and openings. The van body, constructed as a separateM128A2C (fig 2-2). The 12-ton, M128-series unit of steel tubing covered by steel sheeting, issemitrailer, van, cargo, is designed for use as a cargo mounted on the same basic semitrailer chassis.carrier and does not have windows or ventilation

2-1

TM 55-2330-200-15-1

Figure 2-2. Semitrailer, van, cargo, 12-ton, 4-wheel, M128A1-C.

C. Semitrailer, Van, Supply, M129A1C and ventilation and light. The sides and roof are in-M129A2C (fig 2-3). The 12-ton, M129-series sulated to protect the interior of the semitrailersemitrailer, van, supply, is designed for use as a against heat or cold.supply van and has seven windows to provide

2-2

TM 55-2330-200-15-1

Figure 2-3. Semitrailer, Van, Supply, 12-Ton, 4-Wheel, M129A1C.

d. Semitrailer, Tank, Fuel, and Tank, Fuel- operations of fuel-storage containers, groundServicing, 5,000-Gallon, M131-Series. The 12-ton, vehicles, and aircraft. For transportability purposes,M131-Series. The 12-ton, M131-series semitrailer, these semitrailers are similar and the differencestank, fuel, is used to transport and distribute liquid between models consist only of design variations.fuel in bulk. The semitrailer, tank, fuel-servicing, is Figure 2-4 depicts the semilitrailer, tank, fuel, 5,000-also used for fuel transport, but has the additional gallon, 4-wheel, M131A2.capability for fuel transfer or fuel-servicing

2-3

TM 55-2330-200-15-1

Figure 2-4. Semitrailer, tank, fuel, 5,000-gallon, 4-wheel, M131A2.

e. Semitrailer, Low-Bed, Wrecker, M269 and no stowage box mounted on the gooseneck. TheM269A1 (fig 2-5). The 12-ton, M269-series M269A1 has a modified gooseneck that includes asemitrailer is used to transport new or salvaged door on the top platform with stowage facilitiesaircraft and for general-purpose hauling. The M269 within the gooseneck.differs from the M269A1 in that the latter model has

Figure 2-5. Semitrailer, low-bed, wrecker, 12-tonj 4-wheel, M269A1.

2-4

TM 55-2330-200-15-1

f. Semitrailer, Low-Bed, Wrecker, M270 and considerably longer and consequently more suitableM 2 7 0 A 1 (fig 2-6) The 12-ton, M270-series for transport of elongated-type cargo and equip-semitrailer is identical in characteristics to the ment.M269-series except in length. The M270-series is

Figure 2-6. Semitrailer, low-bed, wrecker, 12-ton, 4-wheel, M270A1.

g. Semitrailer, Low-Bed, M172. The 15-ton, 25-ton, M172A1 low-bed semitrailer is identical inM172 low-bed semitrailer is used to transport characteristics to the M172 except in its carryingoutsized and heavy equipment over all types of capacity. The M172A1 can be towed over preparedroads, trails, and open cross-country terrain. roads with up to a 50,000-pound load.

h. Semitrailer, Low-Bed, M172A1 (fig 2-7 The

2-5

TM 55-2330-200-15-1

Figure 2-7. Semitrailer, low-bed, 25-ton, 4-wheel, M172A1.

Section II. CHARACTERISTICS AND RELATED DATA

2-3. General 2-4. Side and Rear Elevation DrawingsTable 2-1 provides an overview of semitrailer This section provides drawings (fig 2-8 through 2-17)characteristics and data applicable to model number necessary for determining the loadability of theor National Stock Number (NSN) shown. Changes in vehicles for movement by various transportationmodel number of NSN may affect the loadability of modes. The models depicted bythe semitrailers as related to the guidance shown in are a representative selectionthis manual. Data shown in based on empty con- covered in this manual.figuration unless otherwise noted. Table 2-2 providesdata on the weight distribution of the semitrailers.

the following figuresof the semitrailers

2-6

Figure 2-8.

TM 55-2330-200-15-1

2-7

TM 55-2330-200-15-1

SCALE

Figure 2-9. Rear elevation, semitrailer, stake, 12-ton, 4-wheel, M127A1C.

2-8

Figure 2-10.

TM 55-2330-200-15-1

2-9

TM 55-2330-200-15-1

SCALE

Figure 2-11. Rear elevation, semitrailer, van, cargo, 12-ton, 4-wheel, M128A1C.

2-10

Figure 2-12.

TM 55-2330-200-15-1

2-11

TM 55-2330-200-15-1

SCALE

Figure 2-13. Rear elevation, semitrailer, tank, fuel, 5,000-gallon, 4-wheel, M131A4.

2-12

Figure 2-14.

TM 55-2330-200-15-12-13

TM 55-2330-200-15-1

SCALE

Figure 2-15. Rear elevation, semitrailer, low-bed, wrecker, 12-ton, 4-wheel, M270.

2-14

Figure 2-16.

TM 55-2330-200-15-12-15

TM 55-2330-200-15-1

Figure 2-17.

2-5. Reduced ConfigurationsTransportation economies can

SCALE

Rear elevation, semitrailer, low-bed, 25-ton, 4-wheel, M172A1.

reduced dimensions for length, width, and height are

be obtained by shown in table 2-1.

reducing each vehicle to its minimum dimensions for 2-6. Unusual Characteristicstransport. Dimensional reductions are particularly The vehicles do not have any unusual characteristicsimportant for ocean transport and may result in that would require special precaution or attention besubstantial dollar savings. Reduced shipping given to temperature, atmospheric pressure, orconfigurations can be achieved by removing side, humidity variations during their exposure to normalrear, and front panels or body cargo stakes, as transportation environments.applicable. For specifics refer to the appropriateorganizational maintenance manuals. Summary of

2-16

TM 55-2330-200-15-1

2-7. CONSUS Freight Classification Classification Guide System. Proper classificationRail and motor freight classification descriptions and and/or description of articles must be determineditem numbers will be determined in accordance with and provided on the bill of lading before the ship-chapter 211 of AR 55-355 and the Freight ment is released to the carrier.

2-17

Table 2-1.

TM 55-2330-200-15-1

2-18

TM 55-2330-200-15-1

Table 2-2. Semitrailer Weight Distribution in Pounds

LandingModel Kingpin Bogie Total gear Bogie Total

M127 3,520 9,850 13,370 5,840 7,530 13,370M127A1 3,960 10,280 14,240 6,000 8,240 14,240M127A1C 4,020 10,260 14,280 6,020 8,260 14,280M127A2C 3,800 10,180 13,980 5,600 8,380 13,980M128A1C 4,720 10,620 15,340 6,980 8,360 15,340M128A2C 4,810 11,040 15,850 7,210 8,640 15,850M129A1C 4,640 10,440 15,080 6,860 8,220 15,080M129A2C 4,610 10,500 15,110 6,880 8,230 15,110M131A2 3,490 8,870 12,360 4,870 7,490 12,360M131A3C 4,220 10,500 14,720 5,800 8,920 14,720M131A4 3,400 9,385 12,785 5,035 7,750 12,785M131A4C 4,010 10,050 14,060 5,540 8,520 14,060M131A5 3,320 9,150 12,470 4,930 7,540 12,470M131A5C 4,060 10,190 14,250 5,610 8,640M172 4,670

14,25010,890 15,560 5,520 10,040 15,560

M172A1 4,995 11,290 16,285 6,975 9,310 16,285M269 3,680 10,520 14,200 4,850 9,350 14,200M269A1 3,720 10,540 14,260 4,880 9,380 14,260M270 5,220 12,370 17,590 6,175 11,415 17,590M270A1 4,880 11,860 16,740 5,815 10,925 16,740

2-19

TM 55-2330-200-15-1

CHAPTER 3

SAFETY

3-1. GeneralGeneral safety considerations and precautions formovement during loading operations are as follows:

a. Check the entire semitrailer to insure that allloose items are properly secured.

b. Make sure no personnel or obstacles are in theway before moving the semitrailer.

c. When backing or moving the semitrailer inconfined areas, make sure appropriate guides toassist are visibly posted.

WARNINGFire extinguishers must be readily availableduring all loading and unloading.

WARNINGProper ventilation must be provided whenloading and unloading if prime mover engineis used. Prolonged inhalation of carbonmonoxide fumes will produce adverse effectsthat may prove fatal.

3-2. Specific Safety RequirementsPertinent safety requirements by individual modecan be found, where applicable, in subsequentchapters.

3-1

TM 55-2330-200-15-1

CHAPTER 4

AIR TRANSPORTABILITY GUIDANCE

Section I. GENERAL

4-1. ScopeThis chapter provides transportability guidance forair movement of the semitrailers described in chapter2. It covers significant technical and physicalcharacteristics and safety considerations; prescribesthe materials required to prepare, load, and unloadthe semitrailers as internal loads aboard US AirForce aircraf; and provides examples of tiedowndiagrams and tiedown data tables for loading thesesemitrailers in C-130, C-141, and C-5 aircraft.

4-2. Maximum Utilization of AircraftCargo may not be carried in or on the bed of thesemitrailers unless approval of the specific load hasbeen obtained from the Air Force. Such cargo mustbe securely restrained in the trailer bed either byattachment to the semitrailer or to the aircraft andmust meet the same restraint criteria as required forthe semitrailer. No cargo may be carried in thetanker semitrailer. When loading and securing cargoin the bed of the semitrailer, the load must notexceed the maximum rated cross-country loadcapacity, and consideration must be given to theaircraft allowable cargo load (ACL) and com-patibility of cargo items. The weight of thesemitrailer plus the weight of any cargo it maycontain must be accurate. The semitrailer and itscargo are considered as one package and the grossweight is used to determine tiedown requirements inaccordance with paragraph 4-40, TM 55-450-15. Ifthe semitrailer is to carry any cargo when it is in theaircraft, load and then weigh the semitrailer before itis loaded in the aircraft. The weight of any cargoloaded on a semitrailer will change the center ofgravity (CG) of the semitrailer as shown in chapter2. Determine the new CG in accordance withparagraph 3-4, TM 55-450-15. Chapter 3 and 4 ofTM 55-450-15 contain detailed instructions for loadplanning and aircraft loading.

4-3. SafetyIn addition to the safety precautions contained inchapter 3, the following should be noted:

a. The activity offering the semitrailers for airtransport will notify the aircraft commander or his

designated representative if ammunition or ex-plosives are to be transported on or within a par-ticular semitrailer.

b. The semitrailer must be restrained for airtransport in accordance with the applicableprocedures in section IV of the appropriate USAF-9Technical Order.

c. Each semitrailer must be checked carefully toinsure that all loose items are properly secured inaccordance with restraint criteria.

d. Cargo tanks of tanker semitrailers must beemptied and purged prior to loading on aircraft.

e. All fuel must be drained from the fuelsegregator assembly of tanker semitrailers that areequipped with filter separators.

WARNINGProper ventilation must be provided whenloading and unloading. Prolonged inhalationof carbon monoxide fumes may be fatal.

WARNINGFire extinguishers must be readily availableduring all loading and unloading operations.

CAUTIONDo not allow vehicles to exceed 3 miles perhour (walking speed) on loading ramps orinside aircraft.

NOTECargo loads depicted in this manual arerestrained to the required minimum of 3gforward restraint. This must be increased toa minimum of 8g forward restraint whenpassengers or nuclear weapons cargo arecarried forward of the other cargo.

NOTEIn air loading, the center of gravity of eachvehicle must be determined, and whereweight and/or measurement is critical, eachvehicle should be weighed and/or measured.

4-4. ResponsibilityThe aircraft commander or his representative isresponsible for insuring that the load is secured inaccordance with restraint criterial outlined in theapplicable aircraft technical order.

4-1

TM 55-2330-200-15-1

Section II. TRANSPORT BY US AIR FORCE AIRCRAFT

4-5. Aircraft CapabilitiesIn accordance with appendix D, AR 70-47, thefollowing semitrailers are air transportable by thetype of aircraft listed:

a. C-130 and C-141: M127- and M269-series.b. C-141: M270-series.c. C-5: All series covered in this manual.

4-6. Typical LoadsThe following tiedown diagrams (fig 4-1 through 4-3)and data (tables 4-1 through 4-3) are based on ac-ceptable methods and can be used as a guide forloading and securing the semitrailers aboard theaircraft. Loads are based on empty vehicles in areduced configuration without major sec-tionalization. Figures 4-1 through 4-3 show a typicaltiedown pattern of a representative semitrailer forlogistical movement; similar patterns are applicableto the other types of semitrailers covered in thismanual. Appropriate prime movers are required forloading and unloading, and TM 55-2320-260-15-1and/or TM 55-2320-211-15-1, as appropriate, shouldbe consulted if prime movers are to be transportedwith the semitrailers. Tables list the type andcapacity of tiedown devices required, location pointson the semitrailers, and aircraft fittings to which thedevices are secured.

4-7. Material RequirementsShoring and bracing materials will be provided bythe shipping activity, and the following must beaccomplished prior to final securing of thesemitrailer:

a. Using 2- by 4-inch lumber, cut-to-suit, con-struct a brace cradle (stanchion) to be placed underthe kingpin area for additional support (item G, fig6-2).

b. Prior to lowering the semitrailer landing legs tothe aircraft floor, place a double layer of ¾-inch-thick, 1½- by 6-foot plywood under the landing legs.

4-8. Piggyback Loads for C-5 AircraftTo maximize aircraft loads and to gain trans-portation economies, the M127-, M172-, M269-,and M270-series semitrailers, when reduced to theirminimum height, can be stacked on top of each otherin the upright position. The removed side, rear, andfront panels or body cargo stakes of this type ofsemitrailer, when properly banded, can be placed onthe cargo deck of the lower semitrailer. This type ofload must receive specific approval by the Air Forceand must adhere to the applicable requirements ofparagraph 4-2 above.

4-2

Figure 4-1.

TM 55-2330-200-15-14-3

Figure 4-2.

TM 55-2330-200-15-1

4-4

Figure 4-3.

TM 55-2330-200-15-1

4-5

TM 55-2330-200-15-1

Table 4-1. Tiedown Data for M127A1C in C-130 Aircraft

Tiedown fitting Tiedown device*

capacityDesignation

capacityin l,000 lb type in 1,000 lb Attach to item

B1 10 MB-1 10 Right rear tiedown provisionF1 10 MB-1 10 Left rear tiedown provisionB2 10 MB-1 10 Right side rear-rear axleF2 10 MB-1 10 Left side rear-rear axleA3 10 MB-1 10 Right side tiedown provision on frame.G3 10 MB-1 10 Left side tiedown provision on frame.A4 10 MB-1 10 Right side tiedown provision on frame.G4 10 MB-1 10 Left side tiedown provision on frame.B5 10 MB-1 10 Right front tiedown provisionF5 10 MB-1 10 Left front tiedown provision

*C-2 may be substituted for MB-1.

Table 4-2. Tiedown Data for M269 in C-141 Aircraft

Tiedown fitting Tiedown device*

capacityDesignation

capacity-in 1,000 lb type in l,000 lb Attach to item

B1 10 MB-1 10F1

Right rear tiedown provision10 MB-1 10

C2Left rear tiedown provision

10 MB-1 10E2

Right side rear-rear axle10 MB-1 10

C3Left side rear-rear axle

10 MB-1 10E3

Right rear tiedown provision10 MB-1 10

C4Left rear tiedown provision

10 MB-1 10E4

Right side trunnion tube10 MB-1 10

A5Left side trunnion tube

10 MB-1 10 Right side tiedown provision on frame.G5 10 MB-1 10 Left side tiedown provision on frame.A6 10 MB-1 10G6

Right side tiedown provision on frame.10 MB-1 10

A7Left side tiedown provision on frame.

10 MB-1 10G7

Right front tiedown provision10 MB-1 10

A8Left front tiedown provision

10 MB-1 10G8

Right side tiedown provision on frame.10 MB-1 10

A9Left side tiedown provision on frame.

10 MB-1 10G 9

Right front tiedown provision10 MB-1 10 Left front tiedown provision

*C-2 may be substituted for MB-1.

Table 4-3. Tiedown Data for M128A1C in C-5 Aircraft

Tiedown fitting Tiedown fitting device*

capacity capacityDesignation in 1,000 lb type in 1,000 lb Attach to item

C1 25 MB-2 25 Right rear tiedown provisionG1 25 MB-2 25 Left rear tiedown provisionE2 25 MB-2 25 Right side rear-rear axleF2 25 MB-2 25 Left side rear-rear axleE3 25 MB-2 25 Right side trunnion tubeF3 25 MB-2 25 Left side trunnion tubeC4 25 MB-2 25 Right side tiedown provision on frame.G4 25 MB-2 25 Left side tiedown provision on frame.C5 25 MB-2 25 Right front tiedown provisionG5 25 MB-2 25 Left front tiedown provision

*D-1 may be substituted for MB-2.

4-6

TM 55-2330-200-15-1

Section III. TRANSPORT BY US ARMY AIRCRAFT

4-9. Fixed-Wing AircraftAll semitrailers depicted in this manual exceed sizeand weight limitations for transport by US Armyfixed-wing aircraft.

4-10. Rotary-Wing AircraftAll semitrailers exceed size limitations for internaltransport by US Army rotary-wing aircraft. TheCH-47A helicopter external lift capability is 16,000

pounds, and that of the CH-47B and CH-47C is20,000 pounds. The external lift capability of theCH-54A is 20,000 and of the CH-54B is 25,000pounds. Consequently, all semitrailers can betransported by external lift except the M172A1,M270, and M270A1 (see table 2-1). Rigging in-structions for external loads are contained in TM 55-450-11 and TM 55-450-12.

4-7

TM 55-2330-200-15-1

CHAPTER 5

HIGHWAY AND OFF-ROAD TRANSPORTABILITY GUIDANCE

5-1. ScopeThis chapter provides transportability guidance forhighway and off-road movement of the semitrailersdescribed in chapter 2. It covers general technicaland physical characteristics and safety con-siderations required for safe transport of thesesemitrailers.

5-2. SafetyIn addition to the safety precautions contained inchapter 3, the semitrailers are subject to all thesafety regulations applicable to commercial carrierswhen moving over public highways in CONUS. Inoversea areas, movements are governed by theaterand local regulations.

5-3. Movement on Own WheelsThe semitrailers covered in this manual are designedto be towed by a prime mover such as the 5-ton, 6x6,truck, tractor, M52, M818, or by a similar vehicleequipped with a fifth wheel, an air supply, and a 24-volt electrical system. In the case of the M172A1semitrailer, the 10-ton, truck, tractor, M123 isrecommended. The semitrailers are designed to betowed over prepared roads at up to 50 miles per hour(mph) and over unimproved roads and open rollingterrain at up to 30 mph. For reasonable distances,therefore, the desirable method of land movement ofthe semitrailers would be by use of an appropriateprime mover. Figures 5-1 and 5-2 show turning-

characteristics diagrams of the M131A4 semitrailertowed by the M52 tractor and of the M270A1semitrailer towed by the M246 tractor, wrecker.Similar turning characteristics are applicable to theother types of semitrailers of similar size covered inthis manual.

5-4. LimitationsThe semitrailers described in this manual exceedCONUS legal width limitations of 96 inches andtherefore require special highway permits. In somestates the legal length limitations are also exceeded,and consequently the local installation trans-portation officer should be consulted for ap-propriate clearance. The procedures for obtainingspecial permits in CONUS are outlined in AR 55-162.Legal limits of oversea areas are identified in “Limitsof Motor Vehicle Sizes and Weights,” InternationalRoad Federation, 1023 Washington Building,Washington, D. C. 20005.

5-5. Piggyback TransportThe M127-, M172-, M269-, and M270-seriessemitrailers, when reduced to their minimum height,can be piggybacked on another semitrailer of thesame series. The semitrailer can be stacked on top ofanother either in the upright or inverted position.However, if long-distance hauling is required,transport by rail is recommended (see chapter 7).

5-1

TM 55-2330-200-15-1

Figure 5-1. Turning-characteristics diagram for semitrailer, tank, fuel,5,000-gallon, M131A4, towed by truck, tractor, M52.

5-2

Figure 5-2.

TM 55-2330-200-15-15-3

TM 55-2330-200-15-1

CHAPTER 6

MARINE AND TERMINAL TRANSPORTABILITY GUIDANCE

6-1. ScopeThis chapter provides transportability guidance formarine and terminal movement of the semitrailerslisted in chapter 2. It covers significant technical andphysical characteristics and safety considerations;prescribes blocking materials; and provides guidancerequired to prepare, lift, tie down, and discharge thevehicles.

6-2. SafetyIn addition to the safety precautions contained inchapter 3, the following precautions should be takenas applicable:

a. All vessel equipment and gear should be in-spected prior to use.

b. All stevedore slings and other items used in theloading and unloading operations should be in-spected for condition and adequate capacity.

c. All personnel should be cautioned not to walkunder semitrailers being lifted.

d. Lifting provisions on each semitrailer should beinspected to insure that they are complete andundamaged.

e. All lifts should have at least two tag linesattached to control the swing of the semitrailer whilesuspended.

6-3. General Rules for StowingWhenever possible, semitrailers should receive theprotection of below-deck stowage. In general, goodstowage of vehicles means placing them fore and aft

as close together as practical, with minimum spacingbetween outer vehicles and the sweatboards (ap-proximately 4 to 6 inches). Removable parts (such asside, rear, and front panels or body cargo stakes),spare parts, and on-equipment materiel (OEM), ifnot shipped on the trailer, should be protected andidentified for location or disposition during ship-ment. Semitrailers in the hold of the ship should beblocked in front, in the rear, and on both sides of thewheels so that the vehicle cannot move in anydirection; individual vehicle blocks should be bracedto bulkheads, stanchions, and other vehicle wheelblocks. Additionally, a brace cradle (stanchion)should be placed under the kingpin for additionalsupport. All semitrailers should be lashed with wirerope or chains to nearby bulkheads, stanchions, orpadeyes.

NOTEThe methods described in this chapter forlifting and securing vehicles are suggestedprocedures. Other methods of handling andstowage may be used provided they willinsure safe delivery without damage.

a. Lifting. For location of lifting points on thesemitrailers refer to the side and rear elevationdrawings in paragraph 2-4 (fig 2-8 through 2-17);however, due to the length of the semitrailers, aheavy-lift spreader is normally used. For a typicallifting diagram see figure 6-1.

6-1

Figure 6-1.

TM 55-2330-200-15-1

6-2

TM 55-2330-200-15-1

b. Loading. Vehicles of any type are alwaysloaded on vessels in their minimum configuration–that is, reduced height, with or without cargo.Semitrailers can be loaded over the beach or frompiers onto landing craft, beach discharge and am-phibious lighters, landing ship tanks (LST), andlanding ship docks (LSD) by using a prime mover ora crane. Semitrailers can be loaded by using a primemover on roll-on/roll-off vessels or onto the deck of

barges from a pier when tidal conditions are suitableand ramps are available, they can also be loaded ontosea going vessels by shoreside or floating cranes.Jumbo booms and heavy-lift ship’s gear may be usedin loading semitrailers on vessels. Figure 6-2 showstypical blocking and tiedown details of arepresentative semitrailer in the hold of a general-cargo vessel.

6-3

Figure 6-2.

TM 55-2330-200-15-1

6-4

TM 55-2330-200-15-1

c. Materials. Table 6-1 is the approximate bill of application of materials required to restrain thematerials for blocking and tiedown of a 12-ton vehicle.semitrailer. Table 6-2 provides data concerning the

Table 6-1. Bill of Materials for Blocking and Tiedown of Typical 12-TonSemitrailer in Hold of General Cargo Vessel (Fig 6-2 )

ApproximateItem Description quantity

Lumber Douglas-fir, or comparable lumber, straight-grain, free from material defects;Fed Spec MM-L-751H:

2- x 4-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 linear ft2- x 12-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 linear ft4- x 6-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 linear ft

Nails Common, steel; flathead, bright or cement-coated; para 3.6.11.2, Fed Spec FF-N-105B:

12d . . . . . . . . . . . . . . . . . . . . . . . . 2430d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12060d . . . . . . . . . . . . . . . . . . . . . . . 10

Wire rope Type I, general-purpose; class 2, 6x19, improved plow steel, wire strand coreor IWRC; Fed Spec RR-W-410C:

5/8-in. . . . . . . . . . . . . . .Clamps

150 ftWire rope, U-bolt clips, saddled, single-grip, forged-steel, Crosby heavy-duty,

or equal; Fed Spec FF-C-450D:5/8-in. . . . . . . . . . . . . . . . . . . . . . . 24

Table 6-2. Application of Materials for Blocking and Tiedown of Typical12-Ton Semitrailer in Hold of General Cargo Vessel (Fig 6-2)

Item No. required Application

A 6 Flooring, 2- x 12- x 96-in. lumber. Locate under rear wheels.B 1 Flooring, 2- x 12- x 72-in. lumber. Locate under landing legs.C 2 Side blocking for tandem-axle wheels, 4- x 6- x 108-in. lumber. Locate at side of rear wheels.D 2 Blocks, 4- x 6- x 108-in. lumber. Locate one in front and one in back of tandem-axle wheels.

Toenail each end to side blocking with two 60d nails.E 4 Cleats, 2- x 4- x 24-in. lumber. Locate against block (item D) as indicated in figure 6-2, and

secure each to side blocking (item C) with five 12d nails.F as required Bracing, 4- x 6-in. x random-length lumber, cut-to-fit. Place ends against side blocking of ot-

her cargo, side of ship, or other ship’s structure, and secure each end with four 30d nails.G as required Stanchion, 2- x 4-in. x random-length lumber. Construct stanchion as shown using 30d nails.

Place under kingpin for aditional support.H 6 Wire rope, 5/8-in. Each cable will form a complete loop between vehicle tiedown provisions

and deck padeye.J 24 Clamps, 5/8-in. Place four clamps over each cable loop at the overlap area and space 3½ in.

apart with a minimum of 6 in. from ends of cable (detail 4, fig. 7-2).

6-4. Special Design Vessels bracing is required. For movement by barge orSeatrain/trailer vessels, roll-on/roll-off ships, similar lighterage, the trailers must be blocked andlanding ships and attack-cargo vessels are equipped braced. When transporting semitrailers over ex-with patented lashing gear and prepositioned fit- tended distances on rough water, semitrailers loadedtings in the deck. When transporting semitrailers aboard landing craft and amphibious lighters shouldaboard such vessels, use of the onboard restraint be lashed, blocked, and braced.equipment is adequate, and no further blocking or

6-5

TM 55-2330-200-15-1

CHAPTER 7

RAIL TRANSPORTABILITY GUIDANCE

Section I. GENERAL

7-1. Scope 7-2. Maximum Utilization of RailcarsThis chapter provides transportability guidance for Additional cargo, as approved by the activity of-rail movement of the semitrailers described in fering the semitrailers for transport, may be trans-chapter 2. It covers significant technical and ported with the trailers.physical characteristics and safety considerationsand prescribes the materials and guidance toprepare, load, tie down, and unload the semitrailers.

Section II. TRANSPORT ON CONUS RAILWAYS

7-3. GeneralThe transportability guidance contained in thissection is applicable when the semitrailers aretransported on CONUS railways. Consideration isgiven to single multiple movements on the types ofrailcars normally used for the movement of thesesemitrailers. The semitrailers, when loaded onsuitable railcars, can be transported without majorsectionalization or major disassembly, except for theM128- and M129-series semitrailers, which have anonreducible height limitation requiring verificationof line clearances. These semitrailers, therefore, willrequire special routing under the provisions ofrestricted rail movements. All other semitrailers,when at their respective reduced heights, aretransportable when within the limits of theAssociation of American Railroads “OutlineDiagram for Single Loads, Without End Overhang,on Open-Top Cars, ” as shown in both the RailwayLine Clearance Publication and the Official RailwayEquipment Register.

7-4. Preparation of VehiclesThe degree of preparation for the semitrailers priorto being transported by railcar is dependent upon theoperational commitment.

7-5. Loading Semitrailers on General-PurposeFlatcars

a. Semitrailers may be placed in the tiedownposition of the railcar by a crane or side loader, orthey may be driven on towed onto the railcar, if asuitable ramp or bridge is available.

b. The load shown in figure 7-1 is based on aflatcar minimum width of 9 feet 6 inches, which willaccommodate all semitrailers described in chapter 2except for the semitrailers, low-bed, M172 andM172A1, which will require a car minimum width of10 feet 3 inches. Figure 7-2 is a blocking and tiedowndetail diagram for figure 7-1. Table 7-1 is a bill ofmaterials for blocking and tiedown of thesemitrailers, and table 7-2 provides data concerningthe application of materials required for securingsemitrailers on general-purpose flatcars.

NOTEA staggered nailing pattern should be usedwhen lumber or laminated lumber is nailed tothe floor of the railcar. Additionally, thenailing pattern for an upper piece oflaminated lumber will be adjusted asrequired so that a nail for that piece will notbe driven through, onto, or right beside anail in the lower piece of lumber.

7-1

Figure 7-1.

TM 55-2330-200-15-1

7-2

Figure 7-2.

TM

55-2330-200-15-17-3

TM 55-2330-200-15-1

7-6. Loading Semitrailers on Special-PurposeFlatcars

a. Semitrailers can be shipped more efficiently onspecialized railroad freight equipment such as theTTX-type flatcars with retractable hitches (fig 7-3).Whenever possible, shippers should request thistype of flatcar when shipping semitrailers.

b. Loading may be accomplished in the samemanner as outlined in paragraph 7-5a above.

c. This method of loading is applicable to othertypes of semitrailers weighing up to 40,000 pounds

providing that the kingpin height is between 47inches minimum and 52 inches maximum.

d. Figures 7-4 and 7-5 show typical loads ofsemitrailers on a flatcar with retractable hitches.

CAUTIONInsure that retractable hitch is securelylocked in UP position. Securement of thetrailer on the retractable hitch will be inaccordance with the car owner’s in-structions. Check to insure that trailerkingpin is locked in place on the hitch.

Table 7-1. Bill of Materials for Blocking and Tiedown of Typical 12-TonSemitrailer on CONUS General-Purpose Flatcars (Fig 7-1 and 7-2 )

ApproximateItem Description quantity

Lumber Douglas-fir, or comparable lumber, straight-grain, free from material defects;Fed Spec MM-L-751H:

2- x 4-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- x 6-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4- x 4-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6- x 8-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Nails Common, steel; flathead, bright or cement-coated; para 3.6.11.2, Fed Spec FF-N-105B:

12d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wire No. 8 gage, black, annealed; Fed SpecQQ-W-461G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wire rope Type I, general-purpose; class 2, 6x19, improved plow steel, wire strand coreor IWRC; Fed Spec RR-W-410C:

½-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Clamps Wire rope, U-bolt clips, saddled, single grip, forged steel, Crosby heavy-duty,

or equal; Fed Spec FF-C-450D:½-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

Thimbles Standard, open-type: ½-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Cushioning Waterproof paper, or suitable material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

material

68 ft36 ft45 ft8 ft

8032486820

200 ft

100 ft

248

as required

Table 7-2. Application of Materials for Blocking and Tiedown of Typical 12-TonSemitrailer on CONUS General-Purpose Flatcars (Fig 7-1 and 7-2)

Item No. required Application

E

A — Brake-wheel clearance. Minimum clearance required is 6 inches above, in back of, and on bothsides of and 4 inches underneath wheel (fig 7-1).

B 4 Chock blocks (detail 1, fig 7-2). Locate 45° portion of block against outside front of frontwheels and against outside rear of rear wheels. Nail heel of block to car floor with three 40dnails, and toenail that portion of the block under tire to car floor with two 40d nails beforeiteme C and D are applied.

C 1 ea per Suitable material such as waterproof paper or burlap. Locate bottom portion under item D.item D The top portion should extend 2 in. above item D (detail 2, fig 7-2).

D 6 Side blocking, each to consist of one piece of 2- x 6- x 72-in. lumber and three pieces of 2- x 4-x 72-in. lumber (detail 2, fig 7-2). Nail one edge of the 2- x 6- x 72-in. piece to the bottom 2-x 4- x 72-in. piece with eight 12d nails. Then place against tire with item C in place, and nailto car floor through the 2- x 4- x 36-in. piece, with eight 20d nails. Nail the other two 2- x 4-x 72-in. pieces to the one below in like manner.

For items E through O, following below, refer to forward bracing detail (detail 3, fig 7(2).2 Lumber, 2- x 6- x 92-in. Nail to car floor with one 30d nail every 8 inches in vincinity under

trailer kingpin. See fig 7-1 for exact location.

7-4

TM 55-2330-200-15-1

MN

14

0 2

P 4

Table 7-2. Application of Materials for Blocking and Tiedown of Typical 12-TonSemitrailer on CONUS General-Purpose Flatcars (Fig 7-1 and 7-2) – Continued

Item No. required Application

F 2 Lumber, 4- x 4-in. x length-to-suit. Toenail to item E with four 16d nails.G 4 Lumber, 4- x 4-in. x length-to-suit. Double bevel each end. Cut to insure full bearing for item

L. Toenail to items E and F with two 16d nails at each end.H 2 Lumber, 2- x 4- x 30-in. Nail to items F and G with three 12d nails at each joint.J 2 Lumber, 4- x 4-in. x length-to-suit. Double bevel each end. Cut to insure full bearing for item

L. Toenail to item F and to car floor with two 16d nails at each end.K 1 Lumber, 2- x 4- x 62-in. Nail to items F and J with three 12d nails at each joint.L 2 Lumber, each to consist of one piece, 2- x 4- x 37-in. and one piece, 2- x 6- x 37-in. Nail lower

pieces to top of items F, G, and J with two 12d nails in each of the items. Offset verticaljoints as shown in detail 3, circle insert X, figure 7-2, and nail top pieces to lower with six12d nails each.

Lumber, 2- x 6- x 24-in. Nail to item L with six 12d nails.Lumber, each to consist of two pieces, 2- x 4- x 18-in. Nail first piece to item E with four 30d

nails. Nail second piece to first in the same manner.Lumber, each to consist of two pieces, 2- x 4- x 12-in. Nail first piece to car floor, against item

J, with three 30d nails. Nail the second piece to the first in the same manner.No. 8 gage black annealed wire, six strands. Pass through the spokes or holes in the rear

wheels and through the car stake pockets (detail 6, item P, fig 7-2). Wires should be at-tached to wheel above the midpoint and the twisted wire tiedowns installed so they form anX across face of wheel. Twist taut with a rod, bolt, or suitable length of 2- x 2-in. lumber,and secure to preclude unwinding (detail 5, item P, fig 7-2).

Q 4 Metal fillers sufficient to provide a suitable radius must be used to protect wire at stakepockets and applied to prevent dislodgement (detail 5, fig 7-2).

R 4 Wire rope, ½-in. Attach through the semitrailer front and rear tiedown provision, in a com-plete loop, through the stake pocket on the same side of the car (detail 4, item R, fig 7-2). Athimble is to be placed at the bottom of each stake pocket and secured to wire rope withcable clip (clamp) (detail 4, item T, fig 7-2).

S 24 Clamps, ½-in. Secure the ends of the wire rope, at the overlap area, with four clamps each,and space 3½-in. apart with a minimum of 6 in. from ends of cable. Place one additionalclamp to secure thimble and wire rope together at each tiedown provision and stake pocket(detail 4, item S, fig 7-2).

T 8 Thimble, open type, ½-in. Place one at bottom of each stake pocket and through each vehicletiedown device (detail 4, item T, fig 7-2).

X See item L above.

GENERAL INSTRUCTIONS

1. Tires are to be inflated to 10 psi above highway operating pressures.2. When No. 8 gage, black, annealed wire is used for tiedown purposes, the wire is to be threaded in a continuous length until all the

required number of strands are formed (one complete loop consists of two strands).3. If semitrailers are shipped in a loaded condition and the combined weight of the vehicle and cargo exceeds 18,000 pounds, ad-

ditional securement will be required as follows: Increase the wheel tiedowns to eight strands of No. 8 gage black, annealed wire ( i t e mP). Add chock blocks (item B) against front and rear of each inside wheel.

4. Item L should be positioned 6 inches behind kingpin of semitrailer.5. Trailer landing legs (landing gear) shall be raised to provide a minimum of 3 inches of clearance between the landing legs and

car.6. See General Rules 2, 3, 4, 5, 7, 9, 10, 14, 15, and 19B appearing in section I of the General Rules Governing the Loading of Com-

modities on Open Top Cars and Trailers published by the Association of American Railroads for further details.

7-5

TM 55-2330-200-15-1

Figure 7-3. Example of a 75-foot TTX flatcar with retractable hitches.

Figure 7-4. Example of a semitrailer loaded on a flatcar with retractable hitches.

7-6

TM 55-2330-200-15-1

Figure 7-5. Typical load of semitrailers on a flatcar with retractable hitches.

7-7. Double-Decking of Semitrailersa. The M127, M172, M269, and M270 series

flatbed semitrailers, when reduced to their minimumheight, can be double-decked on top of another in aninverted position. The removed side, rear, and frontpanels or body cargo stakes should be properlybanded and can then be accommodated and securedon top of the lower semitrailer and/or car floor.

b. For this type of load, hardwood separators (2-in. x 6-in. x length-to-suit) should be located

crosswise between the gooseneck and trailer body.Two such blocks should be placed at each end.

c. The double-decked trailers should be secured toeach other by 10 pair (5 or each side) of ties loopedthrough the trailer stake pockets. Each tie consistsof eight strands of No. 8 gage black, annealed wire(fig 7-6). A substitute for this wire can be 3/8-inchwire rope, attached in a complete loop in the samemanner and secured with three 3/8-in. cable clips(clamps).

7-7

Figure 7-6.

TM 55-2330-200-15-1

7-8

TM 55-2330-200-15-1

Section III. TRANSPORT ON FOREIGN RAILWAYS

7-8. GeneralThe transportability guidance contained in thissection is applicable when the semitrailers describedin chapter 2 are transported on foreign railways.Consideration is given to single and multiplemovements on the types of railcars normally used forthe trasport of this type of equipment. Allsemitrailers, except the M128-, M129-, and M131-series, can be transported in their reduced heightconfiguration within European countries complyingwith the International Loading Gauge (formerlyBerne International) without restrictions; this alsoapplies to the majority of the countries in the MiddleEast as well as to South America, Australia, India,and Pakistan. Because of the height of the M128-,M129-, and M131-series semitrailers, specialclearance will be required for local railwayauthorities. In the Middle East and South Americathe clearances vary, and each country will require a

separate check. In Australia, India, and Pakistan,wide- or broad-gauge railways provide greaterclearances and less restrictions. Because of thevarious designation systems used by differentcountries, foreign railcars are difficult to classify. Inaddition, clearances vary between countries andwithin a country. Consequently, careful evaluationof transport capability must be made on an in-dividual basis.

7-9. Transport on US Army-Owned Foreign ServiceFlat cars

a. General. The semitrailers can be transported ona number of US Army-owned foreign service flat-cars. These flatcars are provided exclusively for thetransport of US military materiel. Table 7-3represents a few of the flatcars available in Europethat are suitable fro transporting this equipment.

Table 7-3. Characteristics of US Army-Owned European FlatcarsAvailable for Transporting Vehicles

Flatcar Platformdesignation Capacity Length Width Height a

SSY 52-ton 31-ft 2-in. 10-ft 4-in. 4-ft 2¾-in.(47.17 MTON) (9.50 m) (3.15 m) (1.29 m)

SSYS 66-ton 31-ft 2-in. 10-ft 4-in. 4-ft 2¾-in.(59.88 MTON) (9.50 m) (3.15 m)

FFLM 90-ton(1.29 m)

46-ft 8-in. 10-ft 3-in. 4-ft 2¾-in.(81 .65 MTON) (14.42 m) (3.12 m) (1.29 m)

a Above top of rail.b German-owned SSY cars are designated RLMMP.

b. Materials. The materials required for blocking CONUS. For general guidance, refer to figures 7-1and tiedown of vehicles on US Army foreign service and 7-2, and tables 7-1 and 7-2.flatcars are essentially the same as those used within

7-9

TM 55-2330-200-15-1

APPENDIX A

REFERENCES

A-1. Department of Defense Publications

MIL-STD-100MIL-A-8421F

A-2. Army Regulations (AR)55-1555-2955-162

55-35570-47385-40746-1

A-3. Field Manuals (FM)1-1005-3655-13

55-1555-60

A-4. Supply Bulletin (SB)700-20

A-5. Technical Bulletin (TB)55-46-1

A-6. Technical Manuals (TM)5-7259-2330-207-14

9-2330-208-15

9-2330-211-14

9-2330-272-14

Military Standard, Engineering Drawing Practices.Military Specification, Air Transportability Requirements, General

Specification for.

Land Transportation within areas outside the Continental United States.Military Convoy Operations in CONUS.Permits for Oversize, Overweight, or Other Special Military Movements

on Public Highways in the United States.Military Traffic Management Regulation.Engineering for Transportability.Accident Reporting and Records.Color, Marking, and Preparation of Equipment for Shipment.

Army Aviation Utilization.Route Reconnaissance and Classification.(AFM 76-12) Air Transport of Supplies and Equipment: Standard Loads

in Air Force C-5 Aircraft.Transportation Reference Data.Army Terminal Operations.

Army Adopted/Other Items Selected for Authorization/List of Repor-table Items.

Standard Characteristics (Dimensions, Weight, and Cube) for Tran-sportability of Military Vehicles and Other Outsize/OverweightEquipment.

Operator, Organizational, Direct Support and General Support Main-tenance Manual for Chassis, Semitrailer: 12-Ton, 4-Wheel, M126,M126A1, M1261C, and M126A2C; Semitrailer, Stake: 12-Ton, 4-Wheel, M127, M127A1, M127A1C, and M127A2C; Semitrailer, Van:Cargo, 12-Ton, 4-Wheel, M128A1, M128A1C, and M128A2C;Semitrailer, Van: Supply, 12-Ton, 4-Wheel, M129A1, M129A1C, andM129A2C.

Operator, Organizational, Field and Depot Maintenance Manual forSemitrailer, Tank: Fuel-Servicing, 5,000-Gallon, 4-Wheel, M131A3C;Semitrailer, Tank: Gasoline, 12-Ton, 4-Wheel, M131, M131A1, andM131A2.

Operator, Organizational, Direct and General Support MaintenanceManual for Semitrailer; Low-Bed: 15-Ton, 4-Wheel, M172; Semitrailer,Low-Bed: 25-Ton, 4-Wheel, M172A1.

Operator’s, Organizational, Direct Support, and General SupportMaintenance Manual for Semitrailer, Tank: Fuel, 5,000-Gallon, 4-Wheel, M131A4; Semitrailer, Tank: Fuel-Servicing, 5,000-Gallon, 4-

A-1

TM 55-2330-200-15-1

38-236(AFP 71-8)38-250 (AFM 71-4)

55-405-955-450-8

55-450-10/1 (AFM 76-3)

55-450-10/2 (AFM 76-4)

55-450-11

55-450-12

55-450-1555-450-19

55-50055-600

55-60155-603 (AFM 75-5)

Wheel, M131A4C; Semitrailer, Tank: Fuel, 5,000-Gallon, 4-Wheel,M131A5; and Semitrailer, Tank: Fuel-Servicing, 5,000-Gallon, 4-Wheel, M131A5C.

Preparation of Freight for Air Shipment.Packaging and Handling of Dangerous Materials for Transport by

Military Aircraft.Army Aviation Maintenance Engineering Manual: Weight and Balance.Air Transport of Supplies and Equipment: External-Transport

Procedures.Air Transport of Supplies and Equipment: Standard Loads in US Air

Force C-130E Air Force C-130E Aircraft.Air Transport of Supplies and Equipment: Standard Loads in Air Force

C-141 Aircraft.Air Transport of Supplies and Equipment: Helicopter External Loads

Rigged with Air Delivery Equipment.Air Transport of Supplies and Equipment: Helicopter External Loads for

Sling, Nylon and Chain, Multiple Leg (15,000-lb capacity) FSN 1670-902-3080.

Air Movement of Troops and Equipment (Nontactical).Air Transport of Supplies and Equipment: Helicopter External Lift

Rigging Materiel, Techniques and Procedures.Marine Equipment Characteristics and Data.Transportation Services at Continental United States (CONUS) In-

stallations.Railcar Loading Procedures.Movement of Military Impedimenta by Commercial Carriers.

55-650 Highway Transportability- Criteria for the United States.55-2200-001-12 Transportability Guidance: Application of Blocking, Bracing, and

Tiedown Materials for Rail Transportation Open-Top and Closed

55-2320-211-15-155-2320-260-15-1

A-7. Air Force Manuals (AFM)

TO 1-lB-40 Handbook of WeightTO 1C-5A-9 Loading Instructions, USAF Series C-5 Aircraft.TO 1C-130A-9 Loading Instructions, USAF Series C-130 Aircraft.TO 1C-141A-9 Loading Instructions, USAF Series C-141 Aircraft.

RailCar Loading Rules.Transportability Guidance: Trucks, 5-Ton, 6x6, M39-Series Chassis.Transportability Guidance: Trucks, 5-Ton, 6x6, M809-Series.

and Balance Data.

NOTEAir Force Technical Orders that have not been integrated into the Department ofthe Army publications system may be requisitioned through the Adjutant General’sOffice in accordance with AR 310-71.

A-8. Other Publications and Source of ProcurementCode of Federal Regulations (CFR ):

Title 46– Shipping, Part 146Title 49– Transportation, Parts 170-179

Available from: Superintendent of DocumentsUS Government Printing OfficeWashington, D. C. 20402

A-2

TM 55-2330-200-15-1

Association of American Railroads General Rules Governing the Loading ofCommodities on Open-Top Cars and Trailers

Section No. 1-Section No. 6-

Available from:

General RulesRules Governing the Loading of Department of Defense MaterielSecretary, Mechanical DivisionAssociation of American RailroadsATTN: J. H. Bean59 E. Van Buren St.Chicago, IL 60605

R. M. Graziano’s Water Carrier Tariff No. 28 (or reissues thereof)-RegulationsGoverning the Transportation or Storage of Explosives or Other DangerousArticles or Substances, and Combustible Liquids on Board Vessels

Available from:

R. M. Graziano’s

R. M. Graziano, Agent1920 L Street NWWashington, D. C. 20036

Tariff No. 29 (or reissues thereof) - Hazardous MaterialsRegulations of the Department of Transportation, Including Specifications forShipping Containers

Available from: R. M. Graziano, Agent1920 L Street NWWashington, D. C. 20036

American Trucking Association, Inc., AgentPublication ICC ATA 111-A/FMC. F-1-15 (or reissues thereof) –Department ofTransportation Regulations Governing Transportation of Hazardous Materialsby Motor, Rail and Water, Including Specifications for Shipping Containers

Available From: Richard H. Hinchcliff, Issuing Officer1616 P Street NWWashington, D. C. 20036

Limits of Motor Vehicles Sizes and Weights– prepared by International RoadFederation, 1023 Washington Building, Washington, D. C. 20005

A-3

Paragraph 7-37 paragraph 2-15 TM56-450-15

TM 55-2330-200-15-1

APPENDIX B

CONVERSION TABLES

B-1

TM 55-2330-200-15-1

b. Wire Rope.3/8-in. diam = 9.5-mm diam½-in. diam = 12.7-mm diam5/8-in. diam = 15.8-mm diam¾-in. diameter = 19.0-mm diam7/8-in. diam = 22.2-mm diam1-in. diam = 25.4-mm diam1-¼-in. diam = 31.7-mm diam1-½-in. diam = 38.1-mm diam

Round off to next higher whole mm of available wire rope sizes.c. Wire. No. 8 gauge annealed (11/64-in. diam) = 4.37-mm diam. Round off as in b

above.

B-8. RemarksIt should be noted that standard abbreviations used on drawings, specifications, andtechnical documents, in some instances, are not in agreement with AR 310-50. Suchabbreviations are governed by MIL-STD 12.

B-2

TM 55-2330-200-15-1

By Order of the Secretary of the Army:

Official:PAUL T. SMITHMajor General, United States ArmyThe Adjutant General

FRED C. WEYANDGeneral, United States ArmyChief of Staff

Distribution:

To be distributed in accordance with DA Form 12-34B, TM 55 Seriesrequirements For Trailers, Semi-Trailers. DA Form 12-39, Requirements forChassis; Stake, & Van, 12 Ton, M126, A1, A1C, M127, A1, A1C, A2C, M128A1,A1C, A2C, M129A1, A1C, A2C. Low Bed, 15 Ton, M172, A1. Wrecker, 12 Ton,M269, A1, M270, A1. Tank, Fuel & Servicing, M131A4, A5, M131A4C, A5C. Tank,Gasoline & Servicing, M131, A1, A2, M131A3C.

*U.S. GOVERNMENT PRINTING OFFICE: 1994 - 300-421/82008

PIN :017689-00

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