Of course the loads are different, but how do you think that chute won't work just from the photo?
I have seen one used before as a main chute. It never opened. The netting seems to not allow enough air for the chute to open.
Or perhaps it's not intended for use in a rocket...
Obviously, since it is being sold as a runner's training assist, and not a rocket parachute. The whole point in my line of questioning is to see if someone has tried it as a rocket parachute, what their experiences and problems were, and see if maybe those problems could be solved, maybe with some simple modification either to the physical traits of the product, or to the protocols used. Maybe there is additional capacity in the chute, maybe not.
If it has not been tried, *then* I might consider purchasing one to try it. If it has been tried, and the user could tell me about obvious show-stopper problems, *then* maybe I would not consider purchasing one, or I might try to solve the show-stoppers.
But I'm sorta surprised at the, "nah, doesn't look like it'll work so I'll say it won't work" attitudes.
Years ago I used a LOC 50" chute in a rocket. The chute stayed packed all the way down. Shroud lines unfurled; the canopy just didn't catch air. If someone had seen that flight, and it was the only flight they'd ever seen with a LOC chute, would they have walked away thinking, "That chute shouldn't be used in rockets."? No, that would have been absurd. Instead, I changed the way I folded the chute, and every flight afterward, the canopy promptly snapped open.
I agree. I'm quite surprised at how quick to dismiss the Idea the Responses have been in this Thread. It's almost as if there was some sort of Hidden Agenda.
. Snipped-The real test of that chute isn't a nominal deployment like tossing it off a bridge. The real test is something more akin to a late opening -- put some shock load on it.
-Kevin
I have one. It weighs 15 lb.Has anyone tried a parachute off of a drag car. Obviously for large rockets im sure you could buy a used one cheap from a race team
In my case, it's called "Recovery is one of the most critical aspects of what we do, so I tend to be highly selective of the parachutes I'll use, or recommend someone use".
troj said:I've seen too many chutes have minimally attached shroud lines...
troj said:... tear off on a hard deployment.
troj said:...too many...
troj said:This is akin to the whole discussion around bent-wire eyebolts.
troj said:... and better able to deal with an early or late deployment.
<snip>
... The real test is something more akin to a late opening
troj said:... and better able to deal with an early or late deployment.
<snip>
... The real test is something more akin to a late opening
I have looked at mine and they built similar to drogues / pilot chutes for cargo chutes.
Even a correct prediction of apogee or a correct measure of apogee does not in any way guarantee a low velocity. The maximum velocity in a practical sense is what the motor can achieve with the rocket in a near-horizontal flight profile (burnout at about apogee in this case). Anything between 0 speed, and that nasty high speed flight vector, is possible. Near zero is what usually happens, it is the nominal case, but one should not count on it!
Regardless of the dearth of data at my disposal , I still think the top of that parabola is where one will find the minimum velocities (with the minimum of recovery system loading) - which is important to know. You may not have a choice of *how minimum* - but after the vehicle leaves the pad, you pretty much have to live with what you get - and it's important to make is as minimum as you can.
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