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smiles

cypres saves/cut away failure

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Some 'interesting' stuff in there...



A fine list of do's and (mainly) dont's.
And how about this one;
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"...CRW wrap at about 6000 ft. The
entangled jumper cut away from his main and then observed the other jumper cutting suspension lines to free him.When he fell away, convinced
that he now had neither a main nor reserve, he tracked towards a small lake. CYPRES then activated his previously unopened reserve."


Talk about optimism, tracking towards a small lake...

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239 saves until now



Whoa.


-Doug



That was as of June 2001. Also note from the page:

"Note: With the introduction of the CYPRES "Field Replaceable Cutter" in March, 1995, there has been a reduced number of accurate activation reports being filed."

So in reality there are likely many not on the "saves" document. Plus count activations from just taking it low.

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thanx all,
have printed off all 11 pages of cypres saves and will go through each one to find out how many were cut-away failures (cut-away but didn't pull reserve)

Have the 1992 CISM-Technical Brochure No 48e, -Possible solutions to the problem of cut-away failure..by R.Maire-
(comprehensive study about cut-away failure with a view to ending ten year series of fatal accidents..Medical experts, clinical and sports psycologists, scientists, researchers and parachutists conducted)

So- 10 years later with cypres saves was hoping to find a more recent study had been conducted -
with answers & solutions to-
jumper cutting away- but not pulling reserve????

Smiles;)

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Check this thread for a link to some similar data. http://www.dropzone.com/cgi-bin/forum/gforum.cgi?post=282565#282565



ah! research is good! I have been reading but do not understand the comparison?
re: low pull/no pull fatalities decrease
means increase in open canopy fatalities?
Kinda figure with ZP fabric happening in 90's with more rigidity in flight= smaller, faster, lighter canopies made. Then radical turns= increase in airspeed & lift, long glide= consequences of pilot miscalculations= fatalities

Smiles;)

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My little study:

Cut away failure was one of the most frequent causes of fatal accidents in parachuting. This fact was reported by international safety records as well as national reports. Fatal accidents of this type were equally common among experienced and students ??? I could never figure that one out...
So- in 1990 prevention of cut-away failure was of crucial importance worldwide.

cut-away, no reserve activation fatalities in 1990= 11
in 1989= 22...
In 85% of fatal accidents the parachutist hit the ground with an operational parachute still on their back (not pulled or pulled to low)

Documented cypres saves since 1991- to June 2001
= 239
They are not recorded with much detail so what I could find approx. was 33 cypres saves due to cut-away failure (jumper cut away without pulling reserve)
5 possible student cypres saves-
with incredible 28 expert cypres saves.

I think 10 saves were recorded as "had trouble finding/hand deploy or trouble with hand deploy"
then cut-away, no reserve pull.
Maybe 12 saves were mals cut-away/no reserve pull.
A couple saves were pilot chute in tow/ cut-away/ no reserve pull.

Reasons for no reserve pull is unclear- unstable trying to locate visually the reserve handle, pulled cut-away instead of reserve,...?????????????

So- I am more confused now, than when I started!
Awesome the rate has decreased so drastically and cypres saves....

All I can figure as I have not experience a cut-away,
is that once main is cut-away and jumper returns to freefall- fright, panic/ mental block/jumper cannot access stored information in long term memory= incapacitation to react.
Looking for more information,

thanx
Smiles;)

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