Air TEc Expert CYPRES 2 User manual

User Guide
CYPRES 2 User’s Guide
- english version -
CYPRES 2
Reliability made in Germany

- CYPRES 2 User’s Guide - page 1
Congratulations on choosing CYPRES 2, without
doubt the safest and most accurate AAD ever
produced.
Like most skydiver, you probably assume that
you will always have time to deploy your reserve
canopy yourself and that situations requiring the
use of an automatic activation device will always
happen to others. We do hope you can avoid such
trouble and that your CYPRES 2 will never have
to take action to save your life. Nevertheless, situ-
ations requiring the activation of CYPRES 2 can
happen to any skydiver, no matter how careful and
experienced. Should CYPRES 2 ever decide to
initiate your reserve opening, you will know that
you have not 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.
Este manual está disponible en español.
Questo manuale è disponibile in italiano.
Эта инструкция имеется на русском языке.
This User Guide is the original version of this document.
This revision applies only to the CYPRES 2 models
mentioned here and replaces and supersedes all previous
applicable revisions*. Please see https://dl.cypres.aero/
userguide/991002_cypres_2_user_guide_en.pdf to check/
download the latest revision. Subject to change without
notice.
CYPRES 2 User Guide as revised 11/2021Art.No. 991002.
* If your CYPRES does not have the latest upgrades/updates
installed, it may not offer all of the options that are included in
the latest User Guide.
CYPRES 2
User Guide
- English version -

page 2 - CYPRES 2 User’s Guide -
Contents
1. Function ...................................................... 3
1.1 Design philosophy .................................... 3
1.2 Components .............................................. 5
1.3 How CYPRES 2 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 functionality ....................... 17
2.6.2 Jumping the WSC .............................. 18
2.6.3 The WSC Audio ................................ 20
2.6.4 WSC Maintenance / Repair / Service 21
3. Installation .............................................. 22
4. How to operate CYPRES 2 ..................... 24
4.1 Handling the control unit ........................ 24
4.2 Switching CYPRES 2 on ........................ 25
4.3 When to switch on or reset ...................... 26
4.4 Changing settings .................................... 27
4.4.1 Dropzone Oset ................................. 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 oset 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 servicing/maintenance .......... 41
7.1 Maintenance reminder .........................42
7.2 Timing of maintenance ............................ 43
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 disk system ...49
11. Abbreviated User guide ......................... 51
12. Switching rigs ....................................... 51
13. Air travel ............................................... 52
14. Technical Data ........................................ 53
14.1 Versions ................................................. 55
15. Warranty................................................. 56
16. Disclaimer ............................................... 57
17. Index........................................................ 58
18. Packing list.............................................. 60
Trademarks ............................................... 60

- CYPRES 2 User’s Guide - page 3
1. Function
1.1 Design philosophy
CYPRES 2 (which stands for “CYbernetic Para-
chute RElease System”) is an automatic activa-
tion device that meets all of the needs of today‘s
skydivers.
The device is simple to operate: Switch it on prior
to the rst jump of the day when your DZ and
aireld are at the same location and height. You do
not need to switch it o because CYPRES 2 will do
this automatically.
CYPRES 2 will check the weather conditions
continuously during the day by measuring the air
pressure twice a minute. This means that the unit
should always be precisely calibrated to the ambient
air pressure at ground level.
The parameters of the various CYPRES 2 models
have been chosen to meet the needs of the vast
majority of skydivers, without interfering with
routine parachuting operations. Millions of jumps
with CYPRES since 1991 have proven the sound-
ness of these parameters. Certain specic activities
may nevertheless require special considerations or
CYPRES 2 settings. Freefall - or any vertical speed
that is greater than the activation speed at the dened
activation altitude (with an Expert CYPRES 2 this
is set to 35 meters per second/78 mph at sea level)
- will cause CYPRES 2 to activate. The CYPRES
family of AADs is exceptionally reliable. CYPRES
units have saved the lives of well over 5,100 sky-
divers to date and no unit has ever failed to activate
when the appropriate conditions have been met.
CYPRES 2 is truly the most reliable piece of para-
chuting equipment ever produced.
CYPRES 2 cannot open your reserve - it is only
intended to cut your reserve closing loop. CYPRES 2
is strictly a backup device and is not a substitute for
proper training and the timely execution of emergency
procedures. It may show a faulty display or fail at any
time for any reason, potentially causing injury or death.
Do not use CYPRES 2 if you do not accept these risks.
You must ensure that the reserve closing loop passes
through the cutter hole. If you loan, rent or sell your
CYPRES 2 to somebody else it is your responsibility to
communicate this warning to them.

page 4 - CYPRES 2 User’s Guide -
The CYPRES 2 combines tried and tested qual-
ity and reliability with a wealth of expertise and
technological progress following many years of
continuous research and development since 1991.
CYPRES 2 oers numerous features and attributes
including the following:
•The unit is waterproof for up to 15 minutes
down to a depth of 15 feet (5 meters) in both
freshwater and saltwater. At a depth of 8 feet
(2.5 meters) or less the unit is waterproof for
up to 24 hours.
•The unit’s power supply is maintenance-free
for the user. There is no need to observe a
replacement date, record the number of jumps
made, monitor the voltage during self-test,
purchase a battery, or have a rigger open or
repack the reserve for this reason.
•The serial number can be accessed from the
display.
•The maintenance due date can be accessed
from the display.
•The unit will remind you when it is approach-
ing its next maintenance date.
•The unit is small and lightweight.
•The unit has a robust, rigger-friendly case with
rounded corners and edges.
•The unit has an extended maintenance
window of +/- 6 months from the month of
manufacture. This allows the user to avoid
downtime during the busy part of the year
regardless of the month of manufacture.
•The unit completes its self-test 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 2 works
Each time CYPRES 2 is switched on it repeatedly
measures the ambient air pressure over a short period
of time and takes the average value as the value for
ground level, thereby “zeroing” itself. This is per-
formed during the integrated self-test.
While in use, CYPRES 2 continuously checks the
air pressure while on the ground and adjusts to any
uctuations in air pressure due to changing weather
conditions. While you might need to reset your al-
timeter before a jump, CYPRES 2 takes care of itself.
This precise calibration should allow CYPRES 2 to
recognize the exact activation altitude and speed.
The processing unit contains a factory-programmed
microprocessor that can calculate the jumper’s
altitude and rate of descent in real time based on
barometric pressure. By continuously monitoring
this data, CYPRES 2 can make calculations regard-
ing the jumper’s altitude and rate of descent. Should
CYPRES 2 decide that the jumper is in a dangerous
situation (i.e., still in freefall at low altitude), the
processing unit instructs the release unit to initiate
the reserve container opening sequence.
The release unit (cutter) for the reserve container is
completely independent of the primary reserve para-
chute activation system (the reserve ripcord). Rather
than withdrawing the ripcord pin from the reserve
closing loop, the release unit cuts the reserve closing
loop inside the reserve container in order to initiate
the opening sequence. Please note that the closing
loop must pass through the cutter hole.
Initiating a reserve container’s opening sequence by
cutting the reserve closing loop is a method that was
invented and patented by Airtec’s founder Helmut
Cloth in 1987.
The CYPRES 2 activation system oers numerous
advantages:
• The reserve container opening sequence can be
initiated either by the jumper pulling the reserve
handle or by CYPRES 2 cutting the reserve clos-
ing loop.
• The only mechanical component is a single mov-
able piston in the release unit.
• The activation system is located inside the reserve
container where it is not exposed to excessive
shocks or other adverse inuences.

- CYPRES 2 User’s Guide - page 7
In the event of an activation the piston moves a
distance of approx. 5 mm.
The release unit (cutter) is completely self-
contained and has been specically developed for
CYPRES 2. In the event of an activation, nothing
escapes or is expelled.
An 18-month investigation by BAM (Bunde-
sanstalt für Materialprüfung), Berlin, tested a total
of 99 release units. Following this investigation,
BAM and the U.S. DOT classied the CYPRES 2
as being non-hazardous.
Thanks to its high degree of reliability and other
properties, the CYPRES 2 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
You do not need to worry about CYPRES 2’s
power supply in any way. The unit should
function from the date of manufacture (DOM)
until the end of its service life.
If CYPRES 2 ceases to function or displays an
error code during the self-test please contact
Airtec or SSK.
No CYPRES 2 user has ever had to pay for a
battery since 2003, provided that the mainte-
nance intervals have been adhered to.

- CYPRES 2 User’s Guide - page 9
1.5 Operational safety
There are two important points to remember re-
garding the operational safety of your CYPRES 2:
1. CYPRES 2 self-tests automatically every
time it is switched on. After every switch-on
procedure, CYPRES 2 executes a self-test
routine that checks all key internal functions.
A successful self-test gives you the best pos-
sible assurance that your unit will provide
trouble-free operation for up to 14 hours.
When the display unit shows , the self-
test has been successfully completed. If the
self-test has detected an error or discrepancy,
CYPRES 2 will not enter normal operating
mode but instead will switch itself o after dis-
playing an error code indicating why the self-
test process has been aborted (see Section 5).
2. CYPRES 2 has a fail-safe error detection sys-
tem. Two processes are activated in CYPRES 2
once the unit has been switched on: a primary
operational process and an independent con-
trol process that continuously monitors the
operational process. Should an error occur while
the operational process is active, the backup
control process should switch the unit o.
Depending on the type of error and its potential
impact, CYPRES 2 can either be switched on
again or it will remain permanently in shut-
down mode. With certain error codes (see Sec-
tion 5) the user will be unable to reactivate the
unit. In these cases, CYPRES 2 must be sent
to the manufacturer or to your service center
for inspection and adjustment.
A malfunction can cause a false activation/failure
to activate: Any technical device can fail. Every fault
imaginable can happen with the CYPRES 2 including,
but not limited to: displaying a faulty status, failing to
function, or functioning at the wrong moment or in the
wrong circumstances. Such a failure could easily injure
or kill you or others. If you or your friends or relatives
are unwilling to accept these uncertainties and risks you
must not use CYPRES 2.

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
Section 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 Section 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 Section 4.4.5 for changing
the scale of the dropzone oset 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 oset,
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
seconds, 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 me-
ters) above ground level.
Unlike the Expert and Tandem CYPRES models, we
recommend that the Student CYPRES be switched
o 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 o󰀨 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, an increas-
ing number of skydivers try and manage to exceed
that speed using low turns and small canopies. The
capability of skydivers to enlarge their vertical speed
under their canopy is further expanding. With the
development, it can not be excluded that a vertical
speed under canopy may even reach the values to
activate a Speed CYPRES. If you aim for such ex-
treme vertical speed, then have your unit switched
o. For your interest: A typical freefall speed is
approx. 50 m/s. The number of fatalities involving
fully open parachutes show that these actions truly
enhance the risk of skydiving dramatically. Please
take all these facts into consideration and use com-
mon 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 o󰀨.

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 parameters
are identical with the ones from the CYPRES models
Expert - Student - Tan dem - 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 Section 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 on the unit. When appears
immediately press + hold the button
2. Various information will be displayed (serial
number, etc). Wait until you see the bar that
shows the current mode setting
3. Indicate that you want to change the mode
by
briey releasing and then pressing + holding
the button
4. CYPRES 2 will conrm by ashing the LED
for 1 second
5. When the LED turns o
immediately release the button
6. The bar will cycle through each of the modes
Click to select your new choice
7. To conrm the setting
repeat the procedure once more
The mode will only change when you complete
steps 1-7 of the procedure identically twice in a
row. Otherwise, the unit will remain in its current
mode.
Note:
Changing the mode will automatically reset the
chosen mode to the standard settings for the rel-
evant model (see Section 12).
You must always keep your control unit pocket
(or window) clean and clear in order to ensure that
you can recognize all of the signs on the display
at all times.
A malfunction can cause a false activation/failure to
activate:
Any technical device can fail. Every fault imaginable
can happen with the CYPRES 2 including, but not
limited to: displaying a faulty status, failing to function,
or functioning at the wrong moment or in the wrong
circumstances.
Such a failure could easily injure or kill you or others.
If you or your friends or relatives are unwilling to
accept these uncertainties and risks you must not use
CYPRES .

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). That criteria
should arrange that in case you are unconscious
and y with your wing suit towards the ground the
WSC initiates your reserve parachute.
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, then the WSC
should change to Canopy Status with dierent
activation criteria. (This duration can be altered,
see Section 4.4.6)
Thereafter it will activate the release unit accord-
ingly to the set Mode Expert or Speed (see Section
14). Default Mode is Expert.
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.
* If you have programed a user-selectable activation
altitude, then you have to increase the 1500 feet by the
programed value.
The WSC Audio is vital for providing the proper
AAD safety for any jump with the WSC.
Using the WSC without the WSC Audio can lead to
dangerous two-canopy-out-scenarios.

- CYPRES 2 User’s Guide - page 17
2.6.1 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 dierent
states providing two dierent 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 and indi-
cated by the WSC Audio.
To avoid any uncertainty or confusion for yourself
it is mandatory that you always know in which
Status the WSC is working.
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 dierent 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 Section 2.5) is the WSC default setting.
unit set in Expert mode
digit indicating
the mode
* Patent granted

page 18 - CYPRES 2 User’s Guide -
If you are an aggressive canopy pilot, the Speed
mode should be used.
You can make your choice via the WSC’s push
button. To set the mode follow the steps accord-
ingly Section 2.5, but enter the procedure when the
choice is shown within the unit information
sequence.
2.6.2 Jumping the WSC
With the WSC you can execute all disciplines.
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 changing
from Wing Suit Status to Canopy Status.
Right after your WSC has changed from the
Wing Suit Status to the Canopy Status, the
WSC Audio informs you of the transition
by playing a melodic sound for 10 seconds.
Not respecting the status of the WSC can lead to a
two-canopy-out scenario
1. Always use the WSC unit together with the paired
WSC Audio, regardless what discipline you execute.
Wear the helmet with the Audio installed whenever
you jump with your WSC.
2. Always prepare to recognize the melody indicating
the WSC status.
3. Always adjust your skydive to the WSC status.
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 19
If your ight scenario during that phase has not met
the needed conditions (you hear no melody) then
reduce your vertical speed by ying half brakes
until you hear the melodic sound.
Only after the melodic sound the WSC switches to
Canopy Status, allowing you to perform your usual
canopy ight without restrictions. 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**.
Fly and land without rapid steering maneuvers.
**If you have programmed a user selectable activation
altitude (see 4.4.2) then you have to increase the 1500
feet by the programmed distance. Land safely.
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 dierence to the „normal“ situation is,
that your WSC functions as a usual Expert or Speed
CYPRES (depending on your choice) throughout
only this one jump.
Have you heard about Sky Surng?
Jumps with a Surf Board create similar physical
conditions as jumps with a Wing Suit. The WSC
can also handle the Sky Surf discipline.