designed the Cypres?
cypres was designed by Helmut Cloth, a German skydiver in
1986. After one of his friends died in a skydiving accident
by death on impact, he wanted to create an AAD (automatic
activation device) that would open the reserve parachute.
He had an idea for an AAD that was not like the bulky, heavy
and often unreliable AAD’s that were already on the
market. He wrote down 13 requirements that the perfect AAD
never incorrectly show activation
2. always be reliable
3. accurate beyond all doubt
4. no restrictions to parachute operations
5. autonomous opening technology
6. low maintenance
7. easy to use
8. hidden in the rig
9. no complex rigging work required
10. small in size
11. be light
12. be durable and lasting
13. ease of installation
is a Cypres?
name ‘Cypres’ is the acronym of "CYbernetic
Parachute RElease System".
It is a small device with a single button, LED and display
screen. Once it has been turned on it calibrates continuously,
checking air pressure in order to calculate the correct ground
level. Once you have turned it on, it stays activated for
do we need a Cypres?
passion that people have for skydiving has spurred them to
make it a safer sport by introducing devices to minimise accidents.
The Cypres is there to act as a back up device should something
unexpected happen during the skydive.
does a Cypres work?
Cypres is constantly checking 7 different criteria. When all
these factors are saying ‘yes’ the Cypres activates.
A small charge makes the cutter slice through the reserve
closure loop, thus releasing the spring loaded pilot chute
of the reserve canopy and allowing it to initiate the reserve
Cypres activates when the rate of descent is more than 29
The student Cypres will firstly trigger the reserve to open
at approximately 750ft when the speed of descent is the same
Secondly, if the rate of descent is between 29 mph and the
speed of freefall, the Student Cypres will also activate once
it reaches 1000ft.
maintenance does a Cypres require?
Cypres 1 model requires battery changes every 2 years or 500
jumps, whichever is sooner. Every 4 years the model is sent
to be serviced. The unit has a life of 12 years. This model
is no longer available.
new, improved Cypres 2 does not require battery changes and
is waterproof up to 15ft for 15 minutes.
more information on skydiving visit www.freefalladdicts.com