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#1
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Parachute source for gliders and winches
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...m-2018-web.pdf Fruity Chutes looks like a good source for chutes, including ballistic chutes. Anything from 12" diameter up. Jim https://fruitychutes.com/ |
#2
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Parachute source for gliders and winches
In case you did not know it, there are many small (~3 foot diameter) parachutes available for minimal cost on Amazon, Walmart.com, etc. Search on running parachutes, drag chutes, exercise parachutes, etc. They are used to add drag to increase effort during exercise.
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#3
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Parachute source for gliders and winches
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 |
#4
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Parachute source for gliders and winches
On Thursday, November 1, 2018 at 7:05:15 PM UTC-4, Soartech wrote:
In case you did not know it, there are many small (~3 foot diameter) parachutes available for minimal cost on Amazon, Walmart.com, etc. Search on running parachutes, drag chutes, exercise parachutes, etc. They are used to add drag to increase effort during exercise. The parachutes used at the end of the winch cable need to be very heavy duty. They get dragged along the ground at high speed when the line is rewound onto the spools after the glider releases. One time I stress-tested the parachute by putting it into a fast moving river that ran parallel to the runway. Newbie me did not adequately compensate for a strong crosswind on a 2000 foot AGL launch. The parachute opened and caught the current. |
#5
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Parachute source for gliders and winches
On Thursday, November 1, 2018 at 6:18:55 PM UTC-6, Martin Gregorie wrote:
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 What Martin said.. Try this for a (relatively) cheap 'chute. Bite the bullet and buy one Tost small winch 'chute and take it to your local rigger and ask how much to make a replica. There's a good chance that will be much less than what you paid for the 1st 'chute. |
#6
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Parachute source for gliders and winches
On Saturday, November 10, 2018 at 9:54:22 PM UTC-5, wrote:
On Thursday, November 1, 2018 at 6:18:55 PM UTC-6, Martin Gregorie wrote: 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 What Martin said.. Try this for a (relatively) cheap 'chute. Bite the bullet and buy one Tost small winch 'chute and take it to your local rigger and ask how much to make a replica. There's a good chance that will be much less than what you paid for the 1st 'chute. We have been using this type of military surplus chute for years now and they hold up very well. The trick is to 'fly' the chute reasonably close to the winch and then drop it but not drag it over the ground. https://www.ebay.com/itm/NEW-UNISSUE...-1:rk:140:pf:0 Unfortunately, they have become harder and harder to find. Fortunately, I bought a few at a surplus store in TX, when they still had them. ;-) Uli 'AS' |
#8
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Parachute source for gliders and winches
Credit to Monty Python...
On 11/11/2018 9:26 AM, Dan Marotta wrote: That's less expensive than a drag chute used in drag racing.Â* And for our Brit friends, drag racing is not men in dresses and high heels running a foot race... :-D On 11/10/2018 7:54 PM, wrote: On Thursday, November 1, 2018 at 6:18:55 PM UTC-6, Martin Gregorie wrote: 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. -- MartinÂ*Â*Â* | martin at GregorieÂ* | gregorie dot org What Martin said.. Try this for a (relatively) cheap 'chute.Â* Bite the bullet and buy one Tost small winch 'chute and take it to your local rigger and ask how much to make a replica.Â* There's a good chance that will be much less than what you paid for the 1st 'chute. -- Dan, 5J |
#9
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Parachute source for gliders and winches
You talking RuPaul....?!?!
LOL...... If talking to Brits, be careful of fags or faggots......quite a bit different in the US than "Queens English"......;-) [cigarettes or meatballs....in order.....] |
#10
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Parachute source for gliders and winches
On Sun, 11 Nov 2018 09:26:01 -0700, Dan Marotta wrote:
That's less expensive than a drag chute used in drag racing.Â* And for our Brit friends, drag racing is not men in dresses and high heels running a foot race... :-D ..... but think of the possibilities if it was a hurdle race, the runners were dressed in drag chutes and allowed to handbag each other while hurdling. Who knows, that could be the latest teevee blockbuster. -- Martin | martin at Gregorie | gregorie dot org |
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