11-10-2006, 12:45 AM
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Incurable SEMROC Fan
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Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,319
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TRYTON: Part Deux
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Originally Posted by CPMcGraw
Jay, eliminate the excess weight and go with the streamer; use only enough ballast to get a safe margin with a "C" motor. [SNIP]
You can notch up the Dv with the streamer, since it doesn't "open up with a bang" at deployment.
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After my Tau Zero flight tests (and my missing Semroc Javelin  ), I've pretty much come to the conclusion that most lighter rockets are *too* light for standard 12" chutes.
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Sometimes parachutes are more trouble than they're worth, especially with ST-7 / BT-20 diameter models.
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I hear you *there.*
Here's an "amended" version of the Tryton, minus the chute and one of the washer weights. The second set of simulations are *with* the single nose weight.
__________________
Jay Goemmer
"Centuri Guy"/"Tau Zero"
YORF Member 28
Semroc SAM #0029
NAR 86131
"I think about organizing things all the time. Never seems to happen. I find something that piques my interest and I'm off on a quest. Or a Centuri.   "
--Bill Eichelberger, 02/22/2022
“Centuri fret buzz in an updated form.”
Bill “Wallyum” Eichelberger re: Estes Flutter-By
03 Sept 2014
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