CYPRES 2 User manual

- CYPRES 2 User’s Guide - page 1
CYPRES 2 User’s Guide
- english version -
Congratulations on your choice of CYPRES, the
safest and most accurate AAD currently available.
Like most skydivers, you probably assume you will
always have time to deploy your reserve canopy
yourself, and that situations requiring the use of
an automatic activation device always happen
to others. We do hope you will never have such
trouble, and that your CYPRES will never have to
try to save your life.
Should CYPRES ever decide to cut your reserve
closing loop, it will most likely happen at a moment
which, no matter how experienced and cautious
you are, justies that you haven‘t left your safety
to chance.
Airtec GmbH & Co. KG Safety Systems
CYPRES 2
Reliability made in Germany
Dieses Handbuch ist in Deutsch erhältlich.
Ce manuel est disponible en français.
Dit Handboek is ook in het Nederlands verkrijgbar.
Este manual está disponivel em Português.
Este manual está disponible en español.
Questo manuale è disponibile in italiano.
Ez a kézikönyv magyar nyelven kapható.
Tento manual je k dostání v èeštinì.
Ta instrukcja jest dotstêpna w jêzyku polskim.
Эта инструкция имеется на русском языке.
Türkçe kullanici el kätabi bulunmaktadir.
このマニュアルは英語版もあります。
提供中文版说明书.
ﺔﯿﺑﺮﻌﻟا ﺔﻐﻠﻟﺎﺑ ﺮﻓﻮﺘﻣ ﻲﻠﯿﻐﺸﺘﻟا ﻞﯿﻟﺪﻟا اﺬھ
This English user‘s guide is the original us-
er‘s guide. It will not be further processed. The ac-
tual version of the manual can be downloaded at
www.cypres.cc The latest revision is appli-
cable for all herein mentioned CYPRES 2 mod-
els only and replaces and supercedes all previous
applicable revisions*. See www.cypres.cc to verify /
obtain the latest revision. Subject to change without notice.
CYPRES 2 User Guide as revised 01 / 2017 Art.No. 991002.
*If your CYPRES does not have the latest upgrades / updates
installed it is possible that your unit does not have all options
available, which are stated in the newest English user’s guide.

page 2 - CYPRES 2 User’s Guide -
Contents
1. Function ...................................................... 3
1.1 Design philosophy ..................................... 3
1.2 Components ............................................... 5
1.3 How CYPRES works................................. 6
1.4 Power supply.............................................. 8
1.5 Operational safety ...................................... 9
2. Product overview...................................... 10
2.1 Expert CYPRES........................................11
2.2 Tandem CYPRES......................................11
2.3 Student CYPRES ..................................... 12
2.4 Speed CYPRES........................................ 13
2.5 changeable MODE CYPRES................... 14
2.6 Wing Suit CYPRES (WSC) ..................... 16
2.6.1 The WSC Audio ................................. 17
2.6.2 The WSC functionality....................... 18
3. Installation................................................ 22
4. How to operate CYPRES 2 ..................... 24
4.1 Handling the control unit ......................... 24
4.2 Switching CYPRES on ............................ 25
4.3 When to switch on or reset....................... 26
4.4 Changing settings..................................... 27
4.4.1 Dropzone Offset ................................. 27
4.4.2 User-selectable activation altitude...... 30
4.4.3 User-selectable activation altitude setting
procedure ............................................ 32
4.4.4 User selectable activation altitude
& dropzone offset feature combined .. 33
4.4.5 Changing the scale.............................. 33
4.4.6 WSC: Changing the setting for status
change................................................. 34
4.5 Access to unit information ....................... 34
4.6 CYPRES 2 and Water jumps................... 36
4.7 Changing the lter.................................... 37
5. Error Display ........................................... 38
6. Changing the release unit(s).................... 39
7. Technical service....................................... 41
8. Important Notes ....................................... 44
8.1 Important notes for jump pilots................ 44
8.2 Important notes for users ......................... 46
9. Repacking of reserves .............................. 47
10. The CYPRES Loop and Disc System... 49
11. Abbreviated User‘s Guide ..................... 51
12. Switching Rigs ........................................ 51
13. Regarding Air Travel ............................. 52
14. Technical Data ........................................ 53
14.1 Versioning .............................................. 55
15. Warranty................................................. 56
16. Disclaimer ............................................... 57
17. Index........................................................ 58
18. Packing List ............................................ 60
Trade Marks ................................................. 60

- CYPRES 2 User’s Guide - page 3
1. Function
1.1 Design philosophy
CYPRES, which is the acronym of „CYbernetic
Parachute RElease System“, is an automatic activa-
tion device which meets all needs, requirements,
and desires of today‘s skydivers.
The operation is easy: If you jump from your DZ
into your DZ just switch it on prior to the rst jump
of the day. It is not necessary to switch it off, be-
cause CYPRES will do this itself. (See chapter 4.3)
The weather is constantly checked by CYPRES
over the day by measuring the air pressure twice
a minute. This means that the unit is always cali-
brated to the precise ground level.
The various CYPRES model parameters have been
chosen to cover the needs of the vast majority of
skydivers, and also not to restrict them during
common skydiving operations. More than 123
Million jumps since 1991 have proven the proper
design of these parameters. (Special activities may
require special consideration or CYPRES settings.)
High vertical speed at a low altitude causes
CYPRES to take action. (For Expert model 35
meter per second, which is approx. 70% of typical
freefall speed.)
The CYPRES family of AAD‘s work with remark-
able reliability. To date CYPRES units have saved
the lives of more than 4000 skydivers, without a
single unit ever refusing to activate and cut through
the loop when the conditions were met.
CYPRES is surely the most reliable piece of sky-
diving equipment ever produced.
CYPRES is not able to open your reserve. It is only
intended to sever your reserve closing loop. CYPRES
is strictly a backup device and does not replace proper
training or timely execution of emergency procedures.
It may display a wrong status, fail whenever and for
whatever reason and may cause injury or death. If you
are not comfortable with these risks you must not use
CYPRES. You must make sure that the loop passes
through the cutter’s passing hole. If you loan, rent or
sell your CYPRES to somebody it is your responsibility
to inform him about the above circumstances.

page 4 - CYPRES 2 User’s Guide -
The CYPRES 2 combines tried and true quality
and reliability with achievements, technology and
discoveries made during all the years of continued
research and development since 1991.
The CYPRES 2 offers numerous features and at-
tributes including:
- unit is waterproof for up to 24 hours down to a
depth of 8 feet (2.5 meters) in fresh or saltwater
- power supply of CYPRES 2 costs zero money
for the user. There is no need to observe a
replacement date, record the number of jumps
made, monitor the voltage during self-test,
watch for a ‘low bat’ sign, purchase a battery,
or have a rigger open or repack the reserve for
this reason.
- several unit informations are accessible from
the display: ight counter, serial number, next
possible maintenance due date, settings
- reminds you when the recommended mainte-
nance date is near
- small and light
- robust, rigger friendly case, with rounded cor-
ners and edges, and in addition it is waterproof
- extended maintenance window: +/- 6 months
from month of manufacture, no down-time
during the busy part of the year regardless of
month of manufacture
- self-test is completed in 10 seconds

- CYPRES 2 User’s Guide - page 5
processing unit
control unit
release unit
(cutter)
1.2 Components
CYPRES consists of a control unit, a processing
unit and one release unit (cutter) for 1-pin reserve
container or two release units (cutters) for 2-pin
reserve container.
Do not pull, lift, carry or throw CYPRES by the cables
SAFETY INSTRUCTIONS

page 6 - CYPRES 2 User’s Guide -
1.3 How CYPRES works
Every time CYPRES is switched on, it measures
the air pressure several times in a short period of
time, takes the average value as the value for ground
level, thus „zeroing“ itself. This happens during the
integrated self-test.
While it is in use, CYPRES constantly checks the
air pressure while on the ground and, if necessary,
adjusts to changing weather conditions. Even though
you might need to reset your altimeter before a jump,
CYPRES takes care of itself. This very accurate cali-
bration is the basis for CYPRES to recognize exactly
the activation altitude and speed.
The processing unit contains a factory programmed
microprocessor that is capable of real-time calcula-
tions of the jumper‘s altitude and rate of descent based
on barometric pressure.
By monitoring this data, certain criteria are generated
from which conclusions are drawn. Should the con-
clusion be that the jumper is in a dangerous situation
(i.e. still in freefall at a low altitude) the processing
unit triggers the release unit to initiate the reserve
container opening sequence.
The release unit (cutter) system for the reserve con-
tainer is completely independent of the rig‘s primary
system, because it does not pull the ripcord pin out
of the closing loop, but rather cuts the loop inside the
reserve container to initiate the opening sequence.
The reserve closing loop has to pass through the
cutters passing hole.
Initiating the opening sequence of a reserve container
by cutting the loop is a method invented and patented
by the founder of Airtec, Helmut Cloth, in 1987.
The CYPRES‘ activation system has these advan-
tages:
• The reserve container opening sequence can be
initiated in two different ways. One method is by
the jumper manually pulling the reserve release
handle. The other method is by CYPRES when
it automatically cuts the closing loop.
• Mechanical components are reduced to a single
movable piston in the release unit.
• The activation system is located inside the
reserve container where it is not exposed to
excessive shock or other adverse inuences.

- CYPRES 2 User’s Guide - page 7
The distance which the piston moves in case of an
activation is approx. 5 mm.
The release unit (cutter) is a unique design speci-
cally developed for CYPRES. Features include a
completely self-contained enclosure to avoid
expelling anything during activation.
During an 18 month long investigation by BAM
(Bundesanstalt für Materialprüfung), Berlin, 99
release units were tested. The result is that BAM
and the U.S. DOT have classied the CYPRES as
being non-hazardous.
Due to its high reliability and other properties, the
CYPRES release unit is currently being used in
aerospace applications (satellites).
• The system is unobtrusive and can be installed
so that it is undetectable from the outside.
Release unit
(cutter) with
elastic keeper
Functional diagram:
reserve
closing
loop
blade plastic guide
stainless
steel body

page 8 - CYPRES 2 User’s Guide -
actually
no scheduling
no shipping costs
no battery costs
no installation costs
no repack costs
no downtime
don’t worry, go skydiving
1.4 Power supply
No user attention should be needed for the power
supply of CYPRES 2.
The unit should function from the date of manu-
facture (DOM) to the end of service life.
If CYPRES 2 should cease to function contact
Airtec or SSK.
No CYPRES 2 user has ever spent any money on
battery since 2003.

- CYPRES 2 User’s Guide - page 9
1.5 Operational safety
There are two important points to remember re-
garding the operational safety of CYPRES:
1. CYPRES self-tests automatically every
time it is switched on. After every switch-
on procedure, CYPRES executes a self-test
routine during which all important internal
functions are checked. A positive outcome
to this self-test should assure you of a trou-
ble-free operation for up to 14 hours.
When the display unit shows , the self-
test has been completed successfully. If the
self-test has resulted in errors or discrepancies,
CYPRES will not assume operating mode but
will switch itself off after displaying an error
code. This error code indicates why the self-
test process was aborted (see chapter 5).
2. CYPRES has fail-safe error detection. Two
processes are activated in CYPRES once the
unit has been switched on: a primary work-
ing process and an independently operating
controlling process that monitors the working
process continuously. In case of errors while
the working process is active, the backup con-
trolling process should switch the unit off.
Depending on the type and potential impact
of the error, CYPRES can either be switched
on again or it will stay in shut-down mode
permanently. With certain error codes (see er-
ror code list in chapter 5), it is not possible for
the user to reactivate the unit. In such cases,
CYPRES must be sent to the manufacturer or
service center for inspection and adjustment.
Malfunction can result in false activation / no
activation: Every technical device can fail. So everything
imaginable can happen with the CYPRES, including, but
not limited to: displaying a status which is not true, failing
to function, or functioning at a wrong moment or at a
wrong occasion. Such inappropriate act can easily injure
or kill you or others. If you or your friends or relatives are
not willing to accept these uncertainties and risks, then
you must not use CYPRES.

page 10 - CYPRES 2 User’s Guide -
2. Product overview
CYPRES 2 is available in six models:
Expert CYPRES 2
Student CYPRES 2
Tandem CYPRES 2
Speed CYPRES 2
changeable MODE CYPRES 2
Wing Suit CYPRES 2
Converting models
A conversion between the four CYPRES 2 models
Expert - Student - Tandem - Speed is possible.
This procedure has to be performed by the manu-
facturer or the service center. This includes new
settings, a new color corresponding button, a new
label, and a complete functional test.
After a model change, the settings of the chosen
model will be reset to the standard settings (see
chapter 14).
Use in a 1-pin reserve container and
the use in a 2-pin reserve container
All CYPRES can be used in both container types.
With the plug-and-socket cutter connection a swap
from 1-pin cutter to 2-pin cutter or vice versa can
be simply done by unplugging and plugging-in
without opening the unit and without the use of
any tools. (See chapter 6)
Feet / Meter version
Every new CYPRES can either display altitude in
feet or meters. If your CYPRES does not meet your
personal preference, see chapter 4.4.5 for changing
the scale of the dropzone offset from feet to meter
or vice versa. Once you have set it, leave it as long
as the unit is in your use.
(If your CYPRES does not show or
on the display when changing the dropzone offset,
then it is an older version that is not capable of
switching the scales.)

- CYPRES 2 User’s Guide - page 11
2.2 Tandem CYPRES
The Tandem CYPRES can be recognized by the
blue button with the imprint „Tandem“ on the
control unit.
It activates the release unit when it detects a rate of
descent higher than approx. 78 mph (35 m/s) at an
altitude of approx. 1900 feet (approx. 580 meters)
above ground level.
Like the Expert CYPRES, the Tandem CYPRES
ceases operation below approx. 130 feet (approx.
40 meters) above ground level.
2.1 Expert CYPRES
The Expert CYPRES can be recognized by the red
button on the control unit.
It activates the release unit when it detects a rate
of descent higher than approx. 78 mph (35 m/s)
at an altitude of approx. 750 feet (approx. 225
meters) above ground level (AGL). In the event of
a cutaway CYPRES will operate down to approx.
130 feet above ground level. Below approx. 130
feet (approx. 40 meters) above ground level open-
ing is no longer useful. For this reason, CYPRES
ceases operation below approximately 130 feet
above ground level.
High speed at low altitude: If you exceed the vertical
speed of 78mph (35 m/s) at an altitude below 1000 feet
(300 meters) under your main canopy, then your Expert
CYPRES is designed to cut the reserve closing loop.
That can cause injury or death. Never do that.
For your information: 35 m/s is approximately
70% of freefall speed.

page 12 - CYPRES 2 User’s Guide -
2.3 Student CYPRES
The Student CYPRES can be recognized by the
yellow button with the imprint „Student“ on the
control unit.
It activates the release unit when it detects a rate
of descent higher than approx. 29 mph (13 m/s).
The activation altitude is split. In the case of rate of
descent being approx. that of free fall, the opening
altitude is at approx. 750 feet (the same as with Ex-
pert CYPRES). However, should the rate of descent
be lower than that of freefall but still above the limit
of 29 mph (e.g. with partially opened canopy, or
after a cutaway), then Student CYPRES activates
the release unit when the altitude falls below approx.
1000 feet (approx. 300 meters) above ground level.
The student will then have more time to prepare
for landing. If under an open canopy, between
approximately 2700 ft and approximately 1000 ft
(approximately 800 meters and approximately 300
meters), the vertical speed is between approximately
7 mph and approximately 30 mph (approximately 3
m/s and approximately 13m/s) for more than 10 sec-
onds then the unit switches, then the unit switches
activation speed from approx. 30 mph to approx.
45 mph (13 m/s to 20 m/s). This should reduce a
possible activation under open canopy. The Student
CYPRES ceases operation below approx. 130 feet
(approx. 40 meters) above ground level.
Unlike the Expert and Tandem CYPRES models, we
recommend that the Student CYPRES be switched
off in the aircraft prior to descent if the jump is
aborted and the student will land with the plane,
because the aircrafts vertical speed will exceed the
unit’s activation speed.
Activation on board: If a jump plane descends, switch
the Student CYPRES off above 1500 ft (450 meters)
above ground, or descend less than 1500 ft/min below
1500 feet above ground level. Close open doors.
Vertical Speed: It is possible to exceed a vertical
speed of 29 mph (13 m/s) under a fully inated canopy!
Avoid it. It can cause injury or death.

- CYPRES 2 User’s Guide - page 13
2.4 Speed CYPRES
The Speed CYPRES can be recognized by the
red button with the white imprint „Speed“ on the
control unit.
It will activate the release unit when it detects a rate
of descent higher than approx. 102 mph (approx. 46
m/s) at an altitude below approx. 750 feet (approx.
225 meters) above ground level. Unlike the Expert
CYPRES, the Speed CYPRES ceases operation
below approx. 330 feet (approx. 100 meters) above
ground level.
The Speed CYPRES is designed to allow extreme
canopy piloting. The high activation speed plus the
feature that the unit ceases operation below 330 feet
are tailored for this discipline.
The Speed CYPRES is designed to activate reliably
in all „regular“ free fall situations (without special
equipment or pilot chute) when no canopy is out.
Although the 35 m/s (78 mph) vertical speed re-
quired for an Expert CYPRES to activate had not
been reached under canopy for decades, nowadays
an increasing number of skydivers try and manage
to exceed that speed using low turns and small
canopies.
The number of fatalities involving fully open para-
chutes show that these actions truly enhance the risk
of skydiving dramatically.
Please take all these facts into consideration and use
common sense before making a choice.
For some activities, the Speed CYPRES may not be
suitable. For instance, already the Expert CYPRES
might not activate during a wing suit jump because the
vertical speed can be too low, and there is even less
chance that a Speed CYPRES will activate. Speed
CYPRES should activate under an open main if the
vertical speed is pushed above 46 m/s near or below
the activation altitude. In case you exceed this vertical
speed, then have your Speed CYPRES switched off.

page 14 - CYPRES 2 User’s Guide -
2.5 changeable MODE CYPRES
The changeable MODE CYPRES can be recog-
nized by the magenta button with the white imprint
„changeable MODE” on the control unit.
The user can switch this unit between the modes
Exp - Stu - Tan - Spe on his own. The device param-
eters are identical with the ones from the CYPRES
models Expert - Student - Tandem - Speed. All
handling is fully identical to these models.
When the unit is on, the current mode is indicated
by a digit below the appropriate engraved mode.
Note:
Default delivery setting of new changeable MODE
units is: Type Expert, scale feet, user-selectable ac-
tivation altitude adjustment A0 (see chapter 4.4.2)
unit set in Tandem mode
digit indicating
the mode
Inappropriate mode can result in false activation /
no activation.
Using an inappropriate mode is most likely to injure or
kill you or others.
Always use the unit in the appropriate mode.
Never, under any circumstances and for any reason,
use the device in an inappropriate mode.

- CYPRES 2 User’s Guide - page 15
To change the mode:
1. switch the unit on and run through the unit
information sequence (press and hold the
button when the appears at the end
of the switch-on procedure, see chapter 4.5.)
2. release the button when solely the indicating
digit is shown
3. press and hold the button immediately
4. the LED turns on
5. release the button when the LED turns off
6. now the digit moves from left to right
7. click the button when the digit is below the
desired mode
8. the unit shuts itself off
9. repeat 1 to 8 to accomplish the setting
The mode will only change when the procedure
1 - 8 is identically done two times. Otherwise the
unit will remain in its current mode.
Malfunction can result in false activation / no
activation:
Every technical device can fail. So everything
imaginable can happen with the CYPRES, including,
but not limited to: displaying a status which is not true,
failing to function, or functioning at a wrong moment or
at a wrong occasion.
Such inappropriate behavior can easily injure or kill you
or others.
If you or your friends or relatives are not willing to
accept these uncertainties and risks, then you must not
use CYPRES.
Note:
Changing the mode will automatically reset the
chosen mode to the standard settings of the ac-
cording model (see chapter 14).
You have to assure that your control unit pocket
(or window) is always clean and clear. That is
necessary to enable you to permanently recognize
all signs on the display.

page 16 - CYPRES 2 User’s Guide -
2.6 Wing Suit CYPRES (WSC)
The WSC can be recognized by the red button with
the white Wing Suit Logo imprint on the control
unit.
As long as the WSC works in Wing Suit Status, it
activates the release unit at a vertical speed higher
than approx. 45 mph (20 m/s) at an altitude of approx
750 feet (approx 225 meters) above ground level and
down to approx. 130 feet (40 meters).
If between the altitude of approx. 6500 feet (2000
meters) and approx. 1500 feet (450 meters) above
ground level the WSC descends with less than
approx 19 mph (8.5 m/s) but more than 5.6 mph
(2.5 m/s) for more than 10 seconds (this duration
can be altered. See chapter 4.4.6), then the WSC
changes to Canopy Status with different activation
criteria. Thereafter it will activate the release unit
at approx. 750 feet (225 meters) and down to ap-
prox. 130 feet (40 meters) above ground level if
the vertical speed is higher than approx. 78 mph
(35 m/s). This is the Expert mode and the WSC
default setting.
In the case that the WSC has been set to use the
Speed mode instead of the Expert mode, then it will
activate the release unit at an altitude of approx. 750
feet (225 meters) and down to approx. 330 feet (100
meters) above ground level, if the vertical speed is
higher than approx. 102 mph (46 m/s).
The WSC System consists of the WSC unit and
the WSC Audio.
WSC unit and Audio are paired, only these two
will function together. Both items carry the same
serial number.
There are materials which possibly may impede or
prevent radio waves. Please ensure that your hel-
met is not made out of those. Feel free to contact us.

- CYPRES 2 User’s Guide - page 17
WSC Audio
2.6.1 The WSC Audio
Please place the Audio into your helmet like
an acoustic altimeter. It
does not need handling,
the function is fully au-
tomatic.
The Audio should no-
tify you about the WSC
change from WingSuit
Status to Canopy Status.
Without this audible in-
formation you have no
conrmation that your WSC has changed status.
You must be certain of this change.
Right after your WSC has changed from the Wing
Suit Status to the Canopy Status it informs you by
playing a melodic sound for 10 seconds.
If the Audio’s voltage decreases below a dened
value, then the melodic sound that you hear will
be played for approx. 1 minute instead of being
played for the typical 10 seconds. If that appears on
a jump, then please swap out the Audio’s battery.
There is a possibility to check
the Audio’s battery while
being on the ground: gently
insert a straightened paper
clip into the „battery test“
hole as shown.
When you pull it out you
will hear the melodic sound if the battery is o.k.
There is also a possibility to check the Audio`s
functionality. That goes as follows:
Switch on your WSC. Have the Audio within a 3
foot range.
Once, during the self test, the appears on
the display, then gently insert a straightened paper
clip into hole BAT Test at the Audio and keep it
there. When you see the you should hear
the melodic sound.
If that happens, then the functionality is given.
When you are a Wing Suit Jumper and you check
your gear check your Audio also.
The WSC Audio is not waterproof. Do
not submerge it in water or similar.

page 18 - CYPRES 2 User’s Guide -
To change the battery
1. open the slide
2. gently insert a straightened paper clip into
hole A on the opposite side
3. and slide the battery out.
4. Insert the new battery (one CR2450).
Respect +/- as shown on the slide.
1
2
3
4
Please insert the new battery (+ pole up) within
half a minute after the old one is slid out.
Then execute a Bat Test. If you hear no sound,
then slide the new battery out again right away
because the new battery could be inserted upside
down or the new battery could be empty. Correct
the situation.
We investigated CR2450 batteries. For preferred
manufacturers see downloads.cypres.aero/wsc
2.6.2 The WSC functionality
During a Wing Suit Flight you probably y at a
low vertical speed. Possibly too low for a usual
AAD to function. To just lower the activation
speed of the device to the needs of the Wing Suit
Flight is not a suitable solution because you might
exceed that low vertical speed while being under
your main canopy and thereby trigger a reserve
opening. That is dangerous. You possibly would
generate a deadly entanglement or at least a two
canopy out scenario, which bears a signicant risk.
In addition you must consult a rigger, pay for a
cutter and pay for a repack.
The WSC wants to provide a solution for these new
requirements, which are challenges caused by the
use of modern Wing Suits.
The WSC attempt to this problem is: two different
states providing two different sets of activation
criteria for one jump.* For the rst part of your
descent the WSC uses the Wing Suit Status. For
your canopy ight it uses the Canopy Status.
The Status change is done by the WSC.
To avoid any uncertainty or confusion for yourself

- CYPRES 2 User’s Guide - page 19
it is mandatory that you always know in which
Status the WSC is working.
Therefore please place the WSC Audio (comes
with your WSC) inside your helmet like an acous-
tic altimeter. No handling is necessary, it works
automatically.
Right after your WSC has changed from the
Wing Suit Status to the Canopy Status it informs
you by playing a melodic sound for 10 seconds.
If you don’t hear the melodic sound: The risk of a
two-canopy-out scenario is increased dramatically.:
Two canopies out can easily hurt or kill you and / or
others. After opening of your main be prepared to hear
the sound of your Audio.
In case you don’t, then y at half breaks until you hear
it. If you still do not hear it, then avoid high vertical
speed below 1500 feet.
Do not y aggressive but smooth below 1500 feet. Do
not do sharp 90‘s or more below 1500 feet.
If you have programmed a user selectable activation
altitude then you have to increase the 1500 feet by the
programmed distance. Land safely.
While the WSC is designed to eliminate a part of
the risk arising from the Wing Suit ight itself,
it should not create limitations on your canopy
ight manoeuvres. To cover this, the WSC allows
you to choose from two different modes for the
Canopy Status.
You can either use the Expert CYPRES mode or
alternatively use the Speed CYPRES mode. The
choice should be determined by your personal
habits. The Expert mode is preferable, if you are
a normal or a bit faster canopy pilot - therefore the
Expert (see Chapter 2.5) is the WSC default setting.
unit set in Expert mode
digit indicating
the mode
If you are an aggressive canopy pilot, the Speed
mode should be used.

page 20 - CYPRES 2 User’s Guide -
You can make your choice via the WSC’s push
button. To set the mode follow the steps accord-
ingly chapter 2.5, but enter the procedure when the
choice is shown within the unit information
sequence.
The procedure is designed in a way that it should
not be possible to do it unintentionally and once
done it stays until you change it again.
After main deployment you probably will y with
a low vertical speed for a while. During that time
you open your zippers and collapse your slider
before you grab your toggles and y your canopy.
This phase at set brakes is likely long enough and
slow enough to fulll the WSC criteria for chang-
ing from Wing Suit Status to Canopy Status.**
If your ight scenario during that phase has not met
the needed conditions (you hear no signal) then
reduce your vertical speed by ying half brakes
until you hear the melodic sound.
In the unexpected case, that absolutely no signal
appears, then just don`t y aggressive but smooth
below 1500 feet***. Don`t do sharp 90’s or more.
Just land smooth and safely.
Once you descend with less than approx 19 mph
(8.5 m/s) but more than 5.6 mph (2.5 m/s) for more
than 10 seconds (this duration can be altered. See
chapter 4.4.6) between the altitude of approx.
6500 feet above the ground and approx. 1500 feet
above the ground the WSC should change over to
the Canopy Status.
The Canopy Status can either be the Expert mode
or the Speed mode, just as you have selected.
It is rare but possible for a WSC to switch over
to the Canopy Status before your exit. That hap-
pens when the aircraft’s ight scenario simulates
the switch over criteria from Wing Suit Status to
Canopy Status.
Then the difference to the „normal“ situation is,
that your WSC functions as a usual Expert or Speed
Inappropriate mode can result in false activation /
no activation.
Using an inappropriate mode is most likely to injure or
kill you or others.
Always use the unit in the appropriate mode.
Never, under any circumstances and for any reason,
use the device in an inappropriate mode.