ZP at altitude

[SkydiveMonkey 0]

How would the temperature at high altitudes affect zp material (say 13k+)? Just wondering.

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[TALONSKY 0]

Bill Booth made some jumps at the north pole where on the ground it was -75 degrees or something like that. I would think he would have used zp main.
Kirk

[SkydiveMonkey 0]

I mean would it make the material brittle, more prone to wear etc? Anything like that.

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[Jimbo 0]

Nothing to worry about. It's not _that_ cold up there. Jump, enjoy, land, repeat.

-
Jim

"Like" - The modern day comma
Good bye, my friends. You are missed.

[kallend 2,034]

Quote

I mean would it make the material brittle, more prone to wear etc? Anything
like that.

Dip it in liquid nitrogen and it would definitely be brittle.

Any temperature you can stand, so can it.

jk - professor of materials engineering, among other things.

[SkydiveMonkey 0]

I'm not worrried about it at all. Just wondering how the temperature variences on the way down would affect it if at all.

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Say no to subliminal messages

[Kirils 1]

Look at the vinyl siding on houses, nylon skiing clothing and arctic tents... The fabric in your your canopy is resistant to the elements (the sun might be problematic if you don't have SolarMax)
I jump canopy made in 1972 on occasion with confidence it will work...

"Slow down! You are too young
to be moving that fast!"

Old Man Crawfish

[Kirils 1]

Check out the canopy care info here:
[url]http://www.skydivepa.com/canopycare.htm

"Slow down! You are too young
to be moving that fast!"

Old Man Crawfish

[Samurai136 0]

I would imagine the material would be fine.

I've heard tales of 3-ring systems shattering on deployment from prolonged exposure to sub-zero temps at the poles.

"Buttons aren't toys." - Trillian
Ken

[riggerrob 643]

Hint, one phase of TSO testing requires freezing the reserve overnight, then drop testing it.
Actually, Velcro is the first parachute material to be affected by sub-freezing temperatures, but it has almost disappeared from modern skydiving gear.
Tandems routinely open at 5,000' or 6,000' while CReW (er canopy formation) jumpers routinely open at 10,000'. For all practical purposes, skydiving gear works fine up to about 15,000', but then you are starting to get into the oxygen bottle range .... For example, CSPA recommends wearing a bail out bottle if you plan on doing CReW from any altitude above 15,000'.