CYPRES Q.

[drenaline 0]

This Q is mostly for the instructors and about the CYPRES, not just any AAD.
Reading some posts, threads and other stuff made me wonder why would you use a student cypress if it can fire up high, or it can fire while landing the aircraft and you have to turn it off etc. Why don't you use the expert cypres for everybody isn't it safer that way? or When do you use expert cypress and when do you use student cypres in the AFF or S/L progression?
"Life is full of danger, so why be afraid?"
drenaline

[ernokaikkonen 0]

I'm no instructor but:
Take a look at :
http://www.pia.com/airtec/SC_eng.pdf
and
http://www.pia.com/airtec/EC_eng.pdf
Both Expert- and Student-Cypres fire at 225m / 750ft.
The Student-Cypres fires if it detects a fallrate of 13 m/s or more. This way it will fire even if the student is trying to land a malfunctioning main canopy.
The Expert-Cypres fires @ 35m/s, practically only if the jumper is still in freefall.
Erno

[SkydiveMonkey 0]

I think the BPA were talking about this a while ago, but decided to stick with student CyPReS's as per Aitec's recommendations.
Adrenaline Junkie Skydive Monkey

[pilotdave 0]

The difference isnt firing height, but firing speed. The purpose is so it pops the reserve during a partial malfunction which the student doesn't cut away.
Dave
http://www.skydivingmovies.com

[billvon 3,118]

>Why don't you use the expert cypres for everybody isn't it safer that way?
We use an expert cypres for students at Otay. No problems to date.
-bill von

[drenaline 0]

Quote

We use an expert cypres for students at Otay. No problems to date.

My DZ too.
"Life is full of danger, so why be afraid?"
drenaline