On Wed, 31 Oct 2018 09:06:05 -0700, JS wrote:

Saw the ad in the AMA flyer for their Expo in Pomona. SSA Region 12 has
a presence there.
AMA Expo:
https://amablog.modelaircraft.org/am...8/10/expowest-
program-2018-web.pdf

Fruity Chutes looks like a good source for chutes, including ballistic
chutes.
Anything from 12" diameter up.
Jim

https://fruitychutes.com/

The Fruity chutes I looked at would all be unlikely to survive their
first winch launch: thie all emphasized light weight, which is exactly
what you don't want for winching. The winch parachute is inline between
cable and shock cord. The tension being carried through the 'chute keeps
it closed during the 60-65 knot launch, when the 'underside' of the
'chute is facing the winch and the shock cord, connecting chute to
glider, it attached to the top centre of its bell. If the launch didn't
finish it off a light weight chute, then being dragged back to the winch
after the launch would probably do the trick.

That is why traditional winch chutes are made of heavy duty canvas with
typically four shrouds made of 50-75mm heavy duty webbing sewn onto the
shock cord attachment at the centre of the chute. Current manufacture
chutes often use plastic fabric, but its just as thick as the canvas it
replaces.


--
Martin | martin at
Gregorie | gregorie dot org