The second is: B) a setup such as used in the Wildman Punisher, wherein there is no* "payload" section of airframe, and the main chute is housed in the nosecone. I think this is what you are asking about. This is also what I think of and refer to as "HED" or "Head End Deployment".
I hedged my bets and got a FruityChute for this. The reasoning was that for a given amount of CD, these chutes pack much smaller than most other options. Since the space for a mains chute IS limited, this seemed like a good idea. It works great, and I would definitely encourage folks to think of chutes that pack as small as they can.
Hi s6,
Which FruityChute did you opt for?
36".
Yep, a lot of folks will be thinking, "that's a big chute for that rocket". Like I said, I tend to oversize my chutes. After far too many hard landings with "normal" sized chutes resulting in damage, I started using bigger chutes and now I spend a lot less time doing repairs. There it is.
s6
Forged eyebolt, pair of Doghouse 1.5g charge wells and 4 position terminal strips on each lid. Put nose between legs, lightly packed 15 ft MPR 1/8th inch Kevlar forward, 24 inch PML parachute w/swivel wrapped in a nomex placed in next, then insert coupler and feel it fully seat before flipping over to screw in shear pins.
Kenny
HED rule 1: no pyrodex. Yeesh.
Possibly dumb question, but unless you're using motor backup for apogee ejection, is there a good reason to put the main in the nosecone rather than the drogue? Seems like it would be easier to stuff the big chute in the main body and just use the cone for the smaller drogue.
I also got a tip from Jason Griffon at Airfest and I put my main charge in the tip of the nose cone. I'm sure a charge on the bulkhead works perfectly fine but I want that laundry to get blown out of the NC and not pulled out.
That's exactly been one of my concerns. Every time I have tried to pull out a chute, I have had limited success, like 50% success. Blowing out the chute in the direction it must go to deploy has worked every time. I was also thinking about a glove finger-tip charge taped to the nose tip for this very reason, but I was curious was the successful HED users would say.
I am rebuilding a crash-damaged 5" Gizmo (early HED-like attempt led to a no-chute landing) and converting it to HED with a new, FW nosecone. I am mirroring CJ's technique as much as I can. I've read it before, but I still do not have a good feel for getting the chute out with av-bay located ejection charges. Seems like those charges would mash the chute into the nosecone, but obviously folks are having a lot of success with it.
In my Punisher - and in some of my other rockets - I attach my tracker to the drogue shock cord, about 2' away from where it clips to the rear AV bay lid.
I use a BRB900 GPS. What I do is wrap it first in some soft foam, then that gets wrapped in a special nomex "pocket" that I made, then I do a really health tape wrap around the whole bundle (which also fastens it to the shock cord). Works great.
s6
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