CYPRES 2 User Guide - JustSky- CYPRES 2 User’s Guide- page 3 1. Function 1.1 Design philosophy...

- CYPRES 2 User’s Guide- page 1

CYPRES 2 User Guide- english version -

Congratulations on your choice of CYPRES, thesafest and most accurate AAD currently available.Like most skydivers, you probably assume you willalways have time to deploy your reserve canopyyourself, and that situations requiring use of anautomatic activation device always happen toothers. We do hope you will never have suchtrouble, and that your CYPRES will never have totake action to save your life.Should CYPRES ever decide to activate yourreserve, it will most likely happen at a momentwhich, no matter how experienced and cautiousyou are, justifies that you haven't left your safetyto chance.

Dieses Handbuch ist auch in Deutsch erhältlich.

Airtec GmbH Safety Systems

CYPRES 2 User’s Guide-

Contents1. Function ...................................................... 31.1 Design philosophy ..................................... 31.2 Components ............................................... 51.3 How CYPRES works ................................ 61.4 Power supply ............................................. 81.5 Operational safety ...................................... 82. Product overview ....................................... 92.1 Expert CYPRES ..................................... 102.2 Tandem CYPRES .................................... 102.3 Student CYPRES..................................... 113. Installation ................................................ 124. How to operate CYPRES 2 ..................... 144.1 Handling the control unit ........................ 144.2 Switching CYPRES on ........................... 154.3 When to switch on or reset ...................... 164.4 Changing altitude reference ..................... 174.5 Access to unit information ....................... 204.6 CYPRES 2 and Water jumps ................... 214.7 Changing the filter ................................... 225. Error Display ........................................... 236. Changing the release unit(s) ................... 24

7. Technical service ...................................... 268. Important Notes ....................................... 298.1 Important notes for jump pilots ............... 298.2 Important notes for users ......................... 319. Repacking of reserves .............................. 3210. Abbreviated User's Guide ..................... 3411. Switching Rigs ........................................ 3412. Regarding Air Travel ............................. 3513. Technical Data ........................................ 3614. Warranty ................................................ 3715. Disclaimer ............................................... 3816. Index ....................................................... 3917. Packing List ............................................ 41Trade Marks ................................................. 41


1. Function

1.1 Design philosophy

CYPRES, which is the acronym of "CYberneticParachute RElease System", is an automaticactivation device which meets all needs, require-ments, and desires of today's skydivers. Once it isinstalled, you can't hear it, you can't feel it and youcan't see it.The operation is quite simple: Just switch it onprior to the first jump of the day, then forget aboutit. It is not necessary to switch it off, becauseCYPRES will do this itself.The weather is constantly checked by CYPRESover the day by measuring the air pressure twice aminute. This means that the unit is alwayscalibrated to the precise ground level.The Expert CYPRES is designed in a way that itwon't restrict the skydiver in any way. Even extre-me maneuvers during exit and in freefall, CYPRESwill cope with it. Whatever you can think of undercanopy like stalls, spiral turns, down planes,hookturns with the smallest canopies as well as

any CRW, CYPRES will analyze these movementswithout problems. It won't interfere with any nor-mal activities while skydiving.Only freefall to very low altitude will causeCYPRES to take action. In this situation CYPRESis designed to activate the reserve approx. 4.5seconds prior to impact.The CYPRES family of AAD‘s work with aremarkable reliability. To date, as production ofCYPRES 1 comes to an end during spring 2003,CYPRES units have saved the lives of more than1000 skydivers, without a single unit ever refusingto activate when the conditions were met.CYPRES 2 is the next chapter of the most reliablepiece of skydiving equipment ever produced.


As the next generation of CYPRES, CYPRES 2combines tried and true quality and reliability withnew achievements, technology, and discoveriesmade during the past 12 years of continued researchand development. CYPRES 2 offers numerous ad-ditional features and attributes including:- unit is water-resistant for 15 minutes at a depth

of 15 feet (5 meters) in fresh and saltwater- power supply of CYPRES 2 is maintenance-

free for the user. There is no need to observe areplacement date, record the number of jumpsmade, monitor the voltage during self-test,purchase a battery, or have a rigger open orrepack the reserve for this reason.

- unit serial number accessible from the displayanytime you want to see it

- maintenance due date accessible from thedisplay anytime you want to see it

- reminds you when the maintenance date is near- smaller and lighter

- robust, rigger friendly case, with roundedcorners and edges, and in addition it is water-resistant

- extended maintenance window: +/- 6 monthsfrom month of manufacture, no down-timeduring the busy part of the year regardless ofmonth of manufacture

- self test is completed in 10 seconds

The handling of the CYPRES 2 is simple:After you have purchased it, your rigger slides itinto the factory integrated CYPRES set up and youforget about it for 4 years*Then you have the maintenance done and forgetabout it for another 4 years.*Then you have another maintenance done andforget about it for another 4 years. *

* Except for switching it on at the beginning ofthe day, and changing the filter after a waterlanding.


1.2 Components

CYPRES consists of a control unit, a processingunit and one release unit (cutter) for 1-pin reservecontainer or two release units (cutters) for 2-pinreserve container.

Please do not:- pull- lift- carry or- throw CYPRES by the cables

processing unit

control unit

release unit(cutter)


1.3 How CYPRES worksEvery time CYPRES is switched on, it measuresthe air pressure several times in a short period oftime, takes the average value as the value forground level, thus “zeroing“ itself. This happensduring the integrated self-test.While it is in use, CYPRES constantly checks theair pressure while on the ground and, if necessary,adjusts to changing weather conditions, e.g. airpressure. Even though you might need to reset youraltimeter before a jump, CYPRES takes care ofitself. This very accurate calibration is the basisfor CYPRES to recognize exactly the activationaltitude and speed.The processing unit contains a factory-programmed microprocessor that is capable of real-time calculations of the jumper's altitude and rateof descent based on barometric pressure.By monitoring this data, certain criteria aregenerated from which conclusions are drawn.Should the conclusion be that the jumper is in adangerous situation (i.e. still in freefall at a lowaltitude) the processing unit triggers the release

unit to open the reserve container.The release unit (cutter) system for the reservecontainer is completely independent of the rig'sprimary system, because it does not pull the ripcordpin out of the closing loop, but rather cuts the loopinside the reserve container to release the pilotchute.Opening a reserve container by cutting the loop isa method invented and patented by the founder ofAirtec, Helmut Cloth, in 1987.The CYPRES' activation system has theseadvantages:• The reserve container can be opened two dif-

ferent ways. One method is by the jumperpulling the reserve release handle. The othermethod is used by CYPRES when it cuts theclosing loop.

• Mechanical components are reduced to a sin-gle movable piston in the release unit.

• The activation system is located inside thereserve container where it is not exposed toexcessive shock or other adverse influences.


The distance which the piston moves in case of anactivation is approx. 5 mm.

The release unit (cutter) is completely self-contained and specifically developed for CYPRES.In the event of activation, nothing escapes or isexpelled.

During an 18 month long investigation by BAM(Bundesanstalt für Materialprüfung), Berlin, 99release units were tested. The result is that BAMand the U.S. DOT have classified the CYPRES asbeing non-hazardous.

Due to its high reliability and other properties, theCYPRES release unit is currently being used inaerospace applications (satellites).

• The system is unobtrusive and can be installedso that it is undetectable from the outside.

Release unit(cutter) with

elastic keeper

Functional diagram:

reserveclosingloop

blade plastic guide

stainlesssteel body


don’t worry, go skydiving

1.5 Operational safetyThere are two important points to rememberregarding the operational safety of CYPRES:

1. CYPRES self-tests automatically every time itis switched on. After every switch-onprocedure, CYPRES executes a self-test routineduring which all important internal functionsare checked. A positive outcome to this self-test should assure you of trouble-free operationfor up to 14 hours.When the display unit shows 0–, the self-testhas been completed successfully. If the self-test has resulted in errors or discrepancies,CYPRES will not assume operating mode butwill switch itself off after displaying an errorcode. This error code indicates why the self-test process was aborted (see chapter 5).

1.4 Power supplyNo attention is needed to the power supply ofCYPRES 2.The unit is designed to function from the date ofmanufacture until the first maintenance, from thefirst maintenance to the second maintenance, andfrom the second maintenance until the end of lifewithout limitations concerning the number ofjumps. If CYPRES 2 should cease to function dueto a faulty power supply prior to the maintenancedue date, Airtec will take care of this with thehighest priority.


2. CYPRES has fail-safe error detection. Twoprocesses are activated in CYPRES once theunit has been switched on: a primary workingprocess and an independently operatingcontrolling process that monitors the workingprocess continuously. In case of errors whilethe working process is active, the backupcontrolling process will switch the unit off.Depending on the type and potential impact ofthe error, CYPRES can either be switched onagain or it will stay in shut-down mode per-manently. With certain error codes (see errorcode list in chapter 5), it is not possible for theuser to reactivate the unit. In such cases,CYPRES must be sent to the manufacturer orservice center for inspection and adjustment.

2. Product overviewCYPRES is available in six models:

Expert CYPRES for a one pin containerExpert CYPRES for a two pin containerStudent CYPRES for a one pin containerStudent CYPRES for a two pin containerTandem CYPRES for a one pin containerTandem CYPRES for a two pin container

Feet / Meter versionEach CYPRES model is offered with an altitudeadjustment either in feet (30-feet steps) or in meters(10-meter steps). The different versions can onlybe distinguished from each other when the altitudereference is changed; otherwise, they are identical.The feet version will display altitude differencesin steps of thirty (30) feet (30; 60; 90; 120 etc) andthe meter version will display differences in 10meter steps (10; 20; 30; 40; etc). See chapter 4.4for changes of altitude reference.


2.2 Tandem CYPRES

The Tandem CYPRES can be recognized by theblue button with the imprint "Tandem" on thecontrol unit.It activates the release unit when it detects a rateof descent higher than 78 mph (35 m/sec) at analtitude of approx. 1900 (approx. 570 meters) feetAGL.Like the Expert CYPRES, the Tandem CYPRESceases operation below approx. 130 feet (approx.40 meters) AGL. In the event of a cutaway,activation will not occur until sufficient speed isobtained.

As of spring 2003, (end of production forCYPRES 1), there are approx. 4,900 TandemCYPRES in use worldwide.

2.1 Expert CYPRES

The Expert CYPRES can be recognized by the redbutton on the control unit.It activates the release unit when it detects a rateof descent higher than 78 mph (35 m/sec) at analtitude of approx. 750 feet (approx. 225 meters)above ground level (AGL). In the event of acutaway below this height CYPRES will operatedown to approx. 130 feet AGL, however activationwill not occur unless sufficient speed is obtained.Below approx. 130 feet (approx. 40 meters) AGLopening is no longer useful. For this reason,CYPRES ceases operation below approximately130 feet AGL.

As of spring 2003 (end of production for CYPRES1), there are approx. 67,000 Expert CYPRES inuse worldwide.


If a jump plane is descending withstudents still on board, switch the StudentCYPRES off before reaching 1500 ft (450meters) above ground.If this is not possible, the descent rate ofthe plane must not exceed 1500 ft/minbelow 1500 feet above ground. Close opendoors.

2.3 Student CYPRES

The Student CYPRES can be recognized by theyellow button with the imprint "Student" on thecontrol unit.It will activate the release unit when the rate ofdescent exceeds 29 mph (13 meters per second).The activation altitude is split. In the case of rateof descent being equal to that of freefall, theopening altitude is at approx. 750 feet (the sameas with Expert CYPRES). However, should therate of descent be lower than that of freefall butstill above the limit of 29mph (e.g. with partiallyopened canopy, or after a cutaway), then StudentCYPRES activates the release unit when thealtitude falls below approx. 1000 feet (approx. 300meters) above ground level. The student will thenhave more time to prepare for landing. Like theExpert CYPRES, the Student CYPRES ceasesoperation below approx. 130 feet AGL.

Be aware that it is possible to exceeda vertical speed of 29 mph (13meters per second) under a fullyinflated canopy!

Unlike the Expert CYPRES models, we recom-mend that the Student CYPRES be switched offin the aircraft prior to descent if the jump is abortedand the student will land with the plane, becausethe vertical speed of a descending jump plane willexceed the activation speed of Student CYPRES.


3. InstallationSince 1994, Airtec has provided all the necessaryparts to nearly all rig manufacturer worldwide, sothat all rigs can be delivered CYPRES ready.Additionally, for nearly all older rigs, Airtec haspublished detailed retrofit instructions in the“CYPRES Rigger’s Guide for Installation“. If anolder rig is not already CYPRES ready, the retrofitcan be organized by any CYPRES dealer.All CYPRES dealers have the necessary docu-mentation for the correct setup. Retrofit setup mustonly be performed by Airtec qualified riggers.Under no conditions is deviation from theinstructions in the “CYPRES Rigger’s Guide forInstallation“ allowed.CYPRES can be assembled into rigs with existingsetups by riggers (packers). Please refer to the“Packer‘s Checklist“ to verify correct setup in eachcontainer.

Please comply with any country-specificregulations concerning a retrofit.


wrong- cables not flat on bottom- thin cable on top of thicker

cable- cable twisted

It is necessary to place the processing unit into thepouch so that the cables lay flat on the bottom ofthe pouch. Control unit cable and cutter cable(s)must be placed without tension.Excess cable is stowed in the flat part of the pocketunderneath the velcro-adjustable flap. If you haveto stow both the thinner cutter cable and the thickercontrol unit cable, be sure to place the thicker cableso that it lays on top of the thinner one. Cablesshould be placed in a circle in order to avoid twists.Always avoid pulling, bending, twisting, or kinkingthe cables

Removal of CYPRES can be done by the ownerwithout any problems. Do not pull on the cables,instead push the processing unit, cutter and controlunit from their keepers.

right


4. How to operate CYPRES 2

4.1 Handling the control unitThe push button on the control unit should bepressed with the fingertip alone; please do not usea fingernail or any object. Use a short clickingaction in the middle of the button.

You should familiarize yourself with switchingCYPRES 2 on and off (see chapter 4.2) andchanging altitude reference (see chapter 4.4) priorto use.The push button is the only means the user has forcontrolling CYPRES 2 functions. For a skydivernecessary handling is reduced to the following sixactions:

• switching on• switching off• increasing altitude reference• decreasing altitude reference• viewing the serial number• viewing the next maintenance date

The following sections provide thorough descrip-tions of these six procedures.


4.2 Switching CYPRES onCYPRES is switched on by pressing the pushbutton four times with very short clicks. Start theswitch-on cycle by clicking the button once. Afterapprox. one second, the red LED-light will glow.You must acknowledge the red light immediatelyby clicking the button again. This sequence - a clickfollowing appearance of the red light - will berepeated two more times. After a total of four clicks,CYPRES goes into self-test mode.If you do not act promptly after seeing the LED-light, or if you push the button to soon, CYPRESwill ignore the switch-on attempt.This four-click initiation cycle has been designedto avoid accidental switch-on.

Once the switch-on procedure is finished, the unitwill run through its self-test. Initially, the displaywill show the number “10“, and then a countdownending in “0“. When the “0“ with the arrow downis shown, the unit is functional for the next 14hours. After 14 hours have passed, the unit willswitch itself off automatically. A manual switch-off is always possible using the push button. If theself-test is not successful, an error code is shownfor approximately 2 seconds. The meaning of thiserror code can be seen in chapter 5.The manual switch-off sequence is the same as theswitch-on procedure (click, light, click, light, click,light, click). This routine is designed to avoidaccidental switch-off.

wait!

click

wait! wait!click click

self-test andcalibration unit

switched onclick

lightappears

lightappears

lightappears


4.3 When to switch on or reset

As a rule, CYPRES has to be switched on at thetakeoff site on the ground. Just prior to donningyour rig is an ideal time. It should never beswitched on inside an aircraft, helicopter, balloon,etc.To reset CYPRES, switch off and then on again.The unit will then re-calibrate and “zero“ itself tothis elevation.

When the takeoff airfield and intended dropzoneare in the same location, and all jumping activityis restricted to that place, an initial switch-on atthe dropzone will suffice for any number of jumps,provided they all take place within 14 hours.Should any of the following situations occur,CYPRES must be reset before the next jump:• The dropzone is missed and the landing takes

place in an area with an elevation greater than30 feet (10 m) above or below the dropzonelevel. Or, on the return journey to the dropzonethe ground elevation changes similarly.

• The unit is taken away from the airfield/dropzone by vehicle or on foot and later broughtback again.

• If the total time for a single jump (takeoff tolanding) exceeds one and a half hours,CYPRES will function normally, but must bereset after landing.

General recommendation: If in doubt, resetCYPRES.

When the takeoff airfield and intended dropzoneare in different locations, CYPRES must beswitched on at the departure airfield. Prior to eachjump, on return to the airfield from the dropzone,it must be reset again before takeoff.

When the takeoff airfield and intended dropzoneare at different elevations, CYPRES must beswitched on at the departure airfield and adjustedto the elevation of the dropzone (see chapter4.4).This is extremely important when makingdemonstration/display jumps. Prior to each jump,on return to the airfield from the dropzone, it mustbe reset before jumping again.


4.4 Changing altitude reference

You must change the altitude reference wheneverthe airfield and the dropzone where you intend toland are at different elevations. CYPRES allowsfor adjustments of up to plus/minus 1500 feet, orplus/minus 500 meters if you have a meter version.In order to make the adjustment, simply leave yourfinger pressed firmly on the push button when youpress it for the fourth time during switch-on.CYPRES will continue with its self-test, and onceit has finished, it will display altitude differencesin steps of 30 feet (or 10 meters). For example,CYPRES will display the number "30" ("10") onthe display next to an arrow pointing upward. (30•

or 10• )In this way, CYPRES is asking if the intendedlanding spot will be at a place 30 feet (10 meters)above airfield elevation. The figure "30" ("10") willremain on the display but the arrow will switchdirection, now pointing downward (30– or 10– ).At this point, CYPRES is asking whether thelanding site will be 30 feet (10 meters) belowairfield elevation. (Be sure to use above-ground-

level altitude; never above-sea-level references.)Following this, "60" ("20") will display next to anarrow pointing upward. CYPRES now is askingwhether you intend to land 60 feet (20 meters)above airfield level. Once again the arrow willchange, pointing downward. CYPRES asks:"Landing 60 feet (20 meters) lower?"

DZ 360 feet below airfield

DZ 360 feet above airfield


This back-and-forth routine between up and down,in increments of 30 feet (10 meters), continues upto an altitude difference of 1500 feet (500 meters).The push button must remain pressed until thedesired altitude comes up on the display. Whenyou see the appropriate altitude, release the pushbutton.The altitude difference that you select will remainindicated on the display, and CYPRES will adjustautomatically for this change during the next jump(only).Even the shortest release of the push button duringthe self-test cycle causes an interruption in theprocess and CYPRES will ignore further attemptsto change altitude reference. In such cases the unitwill run through its self-test and end with 0– onthe display, ready for operation (without altitudeadjustment). Simply repeat the procedure asnecessary.If you need to make changes, you have to startover again by switching off then back on.


Important:It is necessary to do an altitude adjust-ment before each individual jump,whenever the airfield and the dropzonewhere you intend to land are at diffe-rent elevations.

Once you have made an altitude change, it will bedisplayed until the jump has been made, or untilCYPRES switches itself off or is switched off byyou.On landing, CYPRES will accept the new groundlevel as its actual "Ground Zero" reference, whenthe preset altitude has been hit precisely. Thisaction can be observed by noticing thatimmediately after the landing (within a maximumof 30 seconds), the preset altitude difference isautomatically replaced by zero.It would then be possible to take off from thiselevation and land there again under canopywithout doing any further altitude adjustment.But, if you take off at this elevation and jump intoa dropzone with a different elevation you have todo another altitude adjustment.If the preset altitude does not equal the actualaltitude on landing (e.g., because the exactdifference was not known and was estimated) theunit will not change to zero display right away. In

such a case, CYPRES must be recalibrated to thecorrect Ground Zero by switching it off and onagain prior to the next jump. Do this on the airfieldwhere the aircraft will take off.


4.5 Access to unit informationCYPRES 2 provides an easy way to view the serialnumber and next maintenance due date.Simply perform an altitude adjustment and keeppressing the push button after the limit of thealtitude adjustment range. After 1500– (500–

) isshown: 1) the display goes blank for half a second,2) the serial number is shown for 5 seconds, 3) thedisplay goes blank for half a second, 4) the monthand year of the next maintenance due date is shownfor 5 seconds, 5) finally, the unit shuts off.

next maintenance due in 05 / 2007

display of the serial number


4.6 CYPRES 2 and Water jumpsThe design of the CYPRES 2 allows water jumpswithout removal of the unit. CYPRES 2 is waterresistant up to a water depth of approximately 15feet (5 meters) for a duration of approximately 15minutes. This is achieved through a water-resistantcasing, sealed plug connections, a sealed cutter, asealed control unit, and a special filter. The filterallows precise measurement of the air pressure andat the same time keeps water away from the insideof the unit. As long as there is no contact with water,the filter never needs to be replaced by the user.After water contact, the filter must be removed anddiscarded, and a new filter must be installed.CYPRES 2 comes with one spare filter and a filterchanging tool. The CYPRES 2 filter changer tool ismade from stainless steel, specifically for the purposeof filter removal and replacement. Filter replacement(see chapter 4.7) can be done by your rigger (packer).After water contact, the rig and the reserve must bedried according to the manufacturers instructions.After that the rig and CYPRES 2 with the new filtercan be used again.


4.7 Changing the filter

Filter Removal: Hold the CYPRES filter changeron the non-slotted end and push it straight (withouttilting) onto the filter up to the stop position.

Tightly grip the filterchanger, twist off byturning in a counter-clockwise direction andremove the filter. Ifthere is water in thecasing (behind the

filter), dry it with a cloth. Remove the old filterfrom the filter changer by pushing with your fingeror with the eraser end of a pencil.

Filter Installation: Place the new filter with thelabeled side toward and into the slotted end of thefilter changer up to the stop (flush) position. Donot angle.

Hold the filter changer by the non-slotted end,gently slide the filter fitting into the unit holdingit straight without tilting. Turn the filter changerclockwise, initially there will be little resistance.Continue turning the filter changer until it slipson the filter. (The filter stops turning but thechanger continues to turn.) Remove the filterchanger from the filter by pulling straight back.

Do not use other tools !


The switch-on procedure can be performed severaltimes after a “3333“ error was displayed. If the 0– isdisplayed, the unit is fully functional and can be usedfor skydiving.

If other than these three described numbers appearin the display, or if the unit switches itself off andcan not be switched on again, please contact Airtecor SSK.Please record the error code number!

5. Error DisplayIf there is an error condition detected, during theself-test countdown, CYPRES 2 displays a numberon the display for approx. 2 seconds, then it switchesitself off. (Display goes blank).

Error code number / error code description:One or both of the attached release units arenot correctly electrically connected to theunit. The reason may be a cable break, thecutter plug could be disconnected, or therelease unit(s) may have activated.Excessive variations in ambient air pressurehave been measured during the self-testperiod. The unit is unable to obtainconsistent values for the ambient air pressureat ground level. Possible reasons could bethat an attempt to switch CYPRES on hasbeen made in a car driving uphill ordownhill, in an elevator or in a flying aircraft.

1111or2222

3333


Connecting the release unit(s):Hold plug and socket by their aluminium grips.Place the plug directly in front of the socket andconnect them by pushing together with a smoothstraight motion until it is completely seated. Donot twist!

It is easy to change a 1-pin CYPRES to a 2-pinCYPRES or vice-versa, by swapping cutter types.

6. Changing the release unit(s)After an activation the release unit can be changedby any rigger (packer) via the plug-and-socketconnection.

Disconnecting the release unit:Hold plug and socket by their aluminium grips andpull them apart using a smooth straight motion.Do not twist!

1-pin Cutter 2-pin Cutter


Notes:

1. CYPRES 1 field replaceable cutters (no alu-minum grip) can be used with CYPRES 2. Theywill function properly, however thiscombination is not water-resistant. CYPRES 2cutters (identified by aluminum grip) can be usedwith any CYPRES 1 with the field replaceablecutter connector. They function properly - butthis combination is not water-resistant.

2. Release units (cutters) are numbered via a heatshrink tubing placed on the cable. This numberidentifies the cutter. A table of cutter numbers withcorresponding dates of manufacture will beavailable at www.cypres.cc

3. It is possible that the cutter plug could separatefrom the socket after a CYPRES activation. Inthe rare combination of this and a water landing,the socket must be dried out before further use.Do that by tapping the open end of the socketflat onto a flat surface such as a table top. Onceno additional water comes out while tapping on

WARNING! Do not use release units(cutters), with an expired lifetime!

Release units (cutters) also requiretechnical service (maintenance)every four years. Please send cuttersmore than four years old, that havenot been attached to a CYPRESduring maintenance to Airtec or SSKfor a free no-charge inspection priorto use.

the table top, store the CYPRES with the openend of the socket hanging downward for another24 hours in a dry area, to allow the socket to dryout completely. When completely dry, insert theplug of the new cutter.

4. Use a one-pin cutter in a one-pin container anda two-pin cutter in a two-pin container.


7. Technical serviceThe extremely reliable function of CYPRES isbased on 4 facts: exclusive use of carefullypretreated and approved parts, strict detailedmanufacturing procedures, continuous qualitycontrol and monitoring through the manufacturingprocess, and regular periodic technical service(maintenance). 4 and 8 years after the original dateof manufacture, maintenance proceduresaccording to the manufacturers guidelines arenecessary. There are 4 primary reasons for themaintenance:1. Deviations between nominal and actual values

are corrected to ideal values. Every detail isobserved. It is common that signs of wear andtear are corrected and sometimes even‘cosmetic’ treatment is done.

2. The technical condition of each unit is analyzed.The fact that a very high percentage of unitsare returned for the periodic maintenance givesthe ability to see statistical trends and to predictpotential problems at a very early stage. The

advantage: often it’s possible to prevent situa-tions by modifications during the maintenanceprocedures, rather than having to fix problemswith downtime later.

3. Experience shows that during a period of 4years, changes and improvements do happen.Applicable updates are performed duringmaintenance. Such updates may have thebackground of technical improvements, orenhancement of knowledge, or may result fromenvironmental changes in the sport (e.g. newdisciplines), which Airtec is always researchingand taking into consideration.

4. The most important part of the maintenance isthe individual pre-adjustment of each unit forthe next 4 years. A unit will not be returnedbefore a high confidence level is reachedregarding the prediction of the unit’s properfunction for the next 4 years.

The maintenance has to be performed 4 and 8 yearsafter the original date of manufacture. The earliest


At any time it’s possible to checkthe date of the next maintenanceby holding the button down atthe last click during the switch-on procedure until you see ‘nextmaint. in month / year’. If the

unit is 6 months before maintenance due date, themaintenance date (next maint. in month / year) willbe shown at each selftest. 6 months after the duedate the display will change to: ‘next maint. now’.All displayed dates are only a reminder.Please choose a suitable date during the 13 monthtime frame for a convenient performance of themaintenance. According to experience, the numberof maintenances and the necessary time to do themincreases February-May. For quicker service, a datebetween June and January is a better choice.

possible date for the CYPRES 2 maintenance is 6months early, the latest 6 months after the monthof manufacture.

A delayed maintenance has no advantage. It doesnot save any cost, nor will the total lifetime of theunit be extended. It’s smart to choose a suitabletime during the 13 month window for sending theunit in for maintenance, rather than waiting untilthe last possible moment, or until the beginning ofthe next season. Because of the 50,000+ mainte-nance procedures performed to date on CYPRES,and changes incorporated into the design ofCYPRES 2, Airtec has determined that it is possibleto extend the maintenance window to 13 monthson CYPRES 2. This maintenance window givesyou more freedom, and avoids maintenance down-time at the wrong time of the year - please use thisnew feature wisely!


After the 8-year maintenance, CYPRES 2 shouldbe airworthy until the end of life. The expectedlifetime of CYPRES 2 is 12 years from date ofmanufacture.

CYPRES 2 maintenance cost is a flat-rate (alwaysthe same), even when a unit requires extensiverepairs. During the lifetime of a CYPRES 2 unit,the skydiver should not have any operation costsother than the 2 maintenance fees (except for anyrequired replacement cutters or water resistantfilters).

Please contact your local CYPRES dealerconcerning the maintenance. Please contact Airtecwhen you don’t know who that is.

The CYPRES Service Center for the USA, Cana-da, South America and other Western Hemispherecountries is:

SSK Industries, Inc.,1008 Monroe Road

Lebanon, OH 45036 - USATel: ++ 1 513 934 3201 Fax: ++ 1 513 934 3208

email: [email protected]


8. Important Notes

8.1 Important notes for jump pilots• A Student or Expert CYPRES will not work if

the aircraft is exited before it reaches 1500 feet(450m) above the airfield takeoff elevation and1500 feet (450m) above the intended dropzoneelevation. In the case of a Tandem CYPRES3000 feet (900m) has to be reached.

• Never descend to an altitude below the airfieldtakeoff elevation.

• If CYPRES has been adjusted to a dropzoneelevation above airfield takeoff elevation andthe aircraft has climbed above the intendeddropzone elevation, it must not descend belowthe intended dropzone elevation again.

• If CYPRES has been adjusted to a drop zoneelevation altitude below the airfield takeoffelevation, the aircraft must not descend belowthe intended dropzone elevation.

A simply rule: Never descend below the elevationof the takeoff airfield or the intended DZ!

• When using an aircraft capable ofpressurization, make sure that the cabinremains open when the turbines are started up.Leave a window, a door, or the ramp open a bituntil after lift-off. It has to be ensured that thecabin pressure cannot build up above the airpressure on the ground. (Hint, skydiversaltimeters should never go below “0“.)

It is the skydiver's responsibility to make sure thatjump pilots are informed of these circum-stancesthat will interfere with the proper function ofCYPRES. Should a jump pilot be unable to complywith these requirements, or should you discoverafter a jump that the requirements have not beenmet, you should switch CYPRES off and on againprior to the next jump. Note that the aboveconditions will only lead to a low, or no activation- therefore there is no risk of a high activation.


- Never fly below the airfield takeoff elevation

- Always go above 1500 feet (450 meters), for Tandems 3000 feet ( 900 meters)

- If altitude reference has been adjusted, never fly below the intended DZ elevation

1500 ft!

"

NO !1500 ft!

"


8.2 Important notes for users• CYPRES must not be used for parascending

or paragliding/sailing.• CYPRES cannot be used for base jumps (jumps

from fixed objects), and must be switched offprior to making a base jump.

• A Student or Expert CYPRES will not work ifthe aircraft is exited before it reaches 1500 feet(450m) above the airfield and intended DZ. Incase of a Tandem CYPRES 3000 feet (900m)must be reached.

• CYPRES is shielded against radio-transmittersignals. Extreme concerted efforts have beentaken to protect CYPRES 2 from “radiopollution“. Although the extraordinaryshielding system of CYPRES 2 has beeninvestigated thoroughly, it is impossible to have100% pro-tection. It is still recommended toavoid strong radio-transmitters. Please contactAirtec if you have questions.

• A release unit that has activated builds up ahigh internal pressure and will remainpressurized. Never attempt to open it by force.

It can, however, be stored safely for anindefinite period of time, provided that it hasnot been damaged.

• A good reserve pilot chute is an importantsafety factor. On systems with an internally-mounted pilot chute, we recommend thatowners equip their rigs with one that has beenAirtec tested and subsequently qualified byAirtec and the rig manufacturer. Typically therig manufacturer delivers these pilot chuteswith the rig. If there is any doubt, please contactAirtec.


9. Repacking of reservesThe following tips are only brief suggestions.Detailed instructions for riggers (packers) canbe found in our special publications. (“Rigger’sGuide for Installation“ and “CYPRES Packer’sChecklist“)

General:Please closely check the grommets at each repack.Grommets with rough edges ultimately will destroyany loop. Replace damaged grommets immediately.Only use original CYPRES loops / loop material,pull ups, and discs when a CYPRES is installed inthe container. Even if you do not have a CYPRESin your container, a CYPRES loop will markedlyimprove your safety. LOR-loops for Parachute deFrance rigs are an original PdF spare part and canbe purchased only from PdF dealers. Nonadjustable loops which are attached to a CYPRESdisc and are mounted in containers with internalpilot chute should be replaced at each repack.Repack cycles are getting longer, so this increasesyour safety inexpensively. After attachment to the

disc, CYPRES loops should be treated withCYPRES loop silicone on the upper 4 centimeter.The loops provided by Airtec are impregnated onthe first 4 centimeters already.

1-Pin Pop Top:Please check the loop carefully and replace ifnecessary. On all adjustable loops, silicone shouldnot be used. The adjustment will not remain fixed.

2-Pin Pop Top:Since 1991 Airtec endorses the ‘Running Loop’for 2-Pin Pop Top rigs, an Airtec development. The‘Running Loop’ has the characteristic that evenwhen you pull one of the two pins, the pilot chutewill launch. Please ensure that a ‘Running Loop’is installed. The ‘Running Loop’ must be siliconed.A ‘Running Loop’ channel is available from Airtecwithout cost.


Additional notes on the Racer from Jump Shack:On Racer systems in countries where US TSOstandards apply, you must use the quick loopsystem in accordance with the rig manufacturer'sinstructions. Do not use silicone on quick loops.

For all CYPRES loops including running loopsand quick loops, you must use genuine CYPRESloop material.

Tips for Riggers (packers):The ‘Packer’s Kit’ is available from CYPRESdealers. It contains everything that is necessary topack a CYPRES equipped container, including:50 meter spool loop material, finger trappingneedles, discs, temporary pins, silicone, a user’sguide and the ‘Packer’s Checklist’ with detailedinstallation instructions for nearly all containers,tips for packing of CYPRES equipped rigs etc.Further information on CYPRES installations andfor packing CYPRES equipped rigs can be foundat www.cypres.cc

„Smily“ Please follow your country‘s require-ments concerning repack cycles andauthorisations for reserve pack jobs.CYPRES Loop

- no sharp edges- minimal loop tearing

- extremely flexible- breaking strength: 450 lbs- diameter: 1/16 inch

CYPRES disc


11. Switching RigsSwitching your CYPRES to another CYPRESready rig will require only a few moments of workfor your rigger. If the container swap requires achange in the number of release elements (cutters),this can be done quickly on-site by unpluggingthe old cutter and swapping with the required typecutter (1-pin or 2-pin). It is not necessary to sendthe CYPRES to the manufacturer. The necessarycutter can be purchased at any CYPRES dealer.

10. Abbreviated User's Guide

Switch CYPRES on only when you areon the ground !

When airfield and dropzone are at the sameplace, always switch CYPRES off and back onagain when:• CYPRES arrives at the dropzone by any

means other than under an open canopy (e.g.,by car, or by walking back from landingaway from the dropzone.)

• total flight time (leaving the ground untilback to the ground) is longer than 1.5 hours.

If airfield and dropzone are at differentlocations:• Before every jump, switch CYPRES off and

then back on at the airfield where youraircraft takes off from, and change thealtitude reference as appropriate.

General recommendation: If in doubt, resetCYPRES.


12. Regarding Air TravelA CYPRES equipped rig may be transported infreight and passenger airplanes without restrictions.All its components (e.g. measuring technique,electronics, power supply, loop cutter, control unit,plugs, cables, casing) as well as the completesystem, contain parts and materials that areapproved by U.S. DOT and other agencies world-wide, and are not subject to any transportregulations.Because of the size of a rig we recommend to checkit in as normal luggage and to not take it on boardas hand luggage. In case of questions or objectionsof the security personnel, please use the card shownon the right which you’ll find in the back cover ofthis book. The card shows an X-ray of a completerig with CYPRES 2. Depending on type and designof the rig the X-ray on the security’s screen mayvary.Presently the Parachute Industry Association andthe USPA are working with the TransportationSecurity Agency concerning traveling withparachutes.

If you’ve lost the card, you can get a new onefrom Airtec or SSK.

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13. Technical DataData common to Expert, Tandem, and Student models:Length, width, height of the processing unit: ................................................. approx. 85 x 43 x 32 mmLength, width, height of the control unit: ...................................................... approx. 65 x 18 x 6,5 mmLength, diameter of the release unit: ........................................................................ approx. 43 x 8 mmCable length of the release unit: ................................................................................... approx. 500 mmStorage temperature: .............................................................................................. +71° to -25° CelsiusWorking temperature: ......................................................................................... +63° to -20° Celsius *Maximum allowable humidity: ..................................................................... up to 99,9 % rel. humidityWater resistant: ................................................................ approximately 15 minutes at depth of 15 feetAltitude adjustment limits: ...................................................................................±1500 feet or ±500 mOperating range below / above sea level: ................... -1500 feet to +26,000 feet (-500 m to +8000 m)Functioning period: ......................................................................................... 14 hours from switch-onMaintenance: ............................................................................ 4 and 8 years from date of manufacturePower supply: .......................................................................................................... lifetime warranty**Total lifetime: .............................................................................. 12 years from date of manufacture**** These temperature limits do not mean the outside (ambient) temperatures but rather temperatures

inside the processing unit. Therefore, these limits won't have any meaning until the processing unititself has reached the temperatures in question. In actual fact, these limits will rarely be reached dueto the mandatory location of the CYPRES in the reserve container, and the insulating properties ofthe nylon pocket and parachute canopies.

** If required maintenance has been performed.*** Anticipated, according to the present knowledge base.


Special data for Expert CYPRES:Cable length of control unit: ..... approx. 670 mmVolume: ..................................... approx. 139 cm³Weight: .................................. approx. 182 gramsActivation altitude: ...... approx.750 feet (225 m)Activation speed: .... approx. ≥ 78 mph (35 m/s)

Special data for TANDEM CYPRES:Cable length of control unit: ..... approx. 670 mmVolume: ..................................... approx. 139 cm³Weight: .................................. approx. 182 gramsActivation altitude: approx. 1900 feet (580 meter)Activation speed: .... approx. ≥ 78 mph (35 m/s)

Special data for STUDENT CYPRES:Cable length of control unit: .... approx. 1000mmVolume: ..................................... approx. 144 cm³Weight: .................................. approx. 199 gramsActivation altitude: ........ approx. 1000 / 750 feet......................................... (approx. 300 / 225 m)

Activation speed: ..... approx. ≥ 29 mph (13 m/s)............................. or approx. ≥ 78 mph (35 m/s)

14. WarrantyTechnical defects that show up during the first 2years from the date of manufacture will be repairedby the manufacturer at no cost.The manufacturer reserves the right to decidewhether the unit will be repaired or replaced.Neither repair nor replacement will change theoriginal warranty period of 2 years from originalDOM.When CYPRES 2 unit is returned to themanufacturer or service center, it must be packedin the original box, or an equivalent shippingpackage.No claims will be accepted if the unit has beendamaged or has been opened by an unauthorizedindividual, or if an opening of the processing unit,release unit (cutter), or control unit has beenattempted.


15. DisclaimerIn designing and manufacturing CYPRES, the aimof Airtec GmbH is that the device should nevercause an accidental canopy opening, but shouldopen a reserve canopy at an appropriate altitudewhen the activation criteria are met.All investigations and experiments performedduring the product's development, and alllaboratory and field tests accompanying trial andproduction phases have shown to date thatCYPRES meets both requirements.However, the occurrence of a malfunction cannotbe excluded. We accept no responsibility fordamages and consequences resulting from anymalfunction.Airtec GmbH also accepts no responsibility fordamages or problems which are caused by the useof non original Airtec parts and supplies.

CYPRES is strictly a backup device, and is notintended to replace proper training or timelyexecution of appropriate emergency procedures.The use of CYPRES does not automatically

prevent injury or death. Risk can be reduced byassuring that each component has been installedin strict compliance with the manufacturer‘sinstructions, by obtaining proper instruction in theuse of this system, and by operating eachcomponent of the system in strict compliance withthis User‘s Guide.

Automatic activation devices (AADs) sometimesfail to operate properly, and sometimes activatewhen they should not, even when properly installedand operated. Therefore the user risks seriousinjury or even death to themselves and othersduring each use.By using or allowing others to use CYPRES, youacknowledge that you accept responsibility for theproper use of the device, as well as accepting theconsequences of any and all use of this device.Airtec GmbH, their Dealers, Service Centers, andAgents total and complete responsibility is limitedto the repair or replacement of any defective device.


16. IndexAAD ............................................................ 3, 38Abbreviated user ’s guide ................................ 34Activation altitude .......................................... 37Activation speed ............................................. 37Air travel ......................................................... 35Altitude adjustment limits ......................... 17 36Altitude difference .................................... 17-19Altitude reference ..................................... 17-19

Base jumps ...................................................... 31

Cable length .................................................... 37Canopy formation ............................................. 3Changing the container ................................... 34Components ...................................................... 5Control unit ............................................... 10,14CRW ................................................................. 3Cutter .................................................... 7, 24-25

Delivered items ............................................... 41Disc ................................................................. 41Disclaimer ....................................................... 38Display ................................................ 17,20, 23

Display of maintenance date ........................... 20Display of serial number ............................... 20

Error codes .................................................. 9,23Error display ................................................... 23Expert CYPRES ........................................ 10,29

Fail safe principle ............................................. 9Field replaceable cutter .............................. 24,25Filter .......................................................... 21,22Filter changer ............................................. 21,22Functioning period ......................................... 36

Hand luggage .................................................. 35Humidity ......................................................... 36

Installation ................................................. 12,13

Jump pilots ..................................................... 29

Lifetime .......................................................... 36Loop ........................................................... 32,33Loop material .................................................. 33

Maintenance ............................................. 26-28


Maintenance date ...................................... 20,27

Operating range ............................................. 36

Parascending / paragliding ............................ 31Patent ............................................................... 6Power Supply ............................................. 8,36Pressurization ................................................ 29Processing unit ........................................ 5,6,36Release unit .......................................... 7, 24-25Removal ......................................................... 13Reserves .................................................... 32-33Retrofit ........................................................... 12Riggers ...................................................... 12,32

Serial number .............................................. 4,20Service center ........................................... 28,37Silicone ..................................................... 32,33

Temperature ................................................... 36

Volume ........................................................... 37

Warranty ........................................................ 36Water contact .............................................. 4,21Water depth .................................................... 21Water jumps ................................................... 21Water resistant ............................................ 4,21Weather change ............................................. 3,6Weight ............................................................ 37

X-ray .............................................................. 35


17. Packing ListIn addition to the CYPRES 2 unit and the user’sguide, the following items will be delivered:

For 1-pin CYPRES 2:

2 1-pin Loops1 pull up1 disc1 spare filter1 filter changer

For 2-pin CYPRES 2:

1 2-pin Loop2 pull ups2 soft bodkins2 discs1 spare filter1 filter changer

Trade MarksCYPRES is a trade mark of Airtec GmbH.All rights reserved. No part of this publication maybe reproduced or transmitted in any form or byany means, electronic or mechanical, includingphotocopying, microfilm, recording, or by anyinformation storage and retrieval system, withoutpermission in writing from Airtec GmbH. No pa-tent liability will be accepted with regard to theuse of information contained in this manual. Thismanual was compiled with due care. Airtec GmbHand all persons and institutions involved in thetranslation of this publication do not accept anyliability for mistakes, omissions or for any resultantdamages.

Copyright © 2003 by AIRTEC GmbH,33181 Bad Wuennenberg, Germany.

CYPRES 2 User Guide as revised 04/2003Further informations can be found at:www.cypres.cc

Printed on chlorine-free bleached paper.

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