11-06-2011, 12:25 AM
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Forest Sprite
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Join Date: Dec 2006
Location: Back Up in the Woods
Posts: 3,657
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Quote:
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Originally Posted by DGLand
This would not modify any motor. It would be used just like a second stage motor but would involve absolutely no changes to any first stage motors.
Nooooooo........... That would seem to require me to pack pyrogens into a motor case, which IIRC would be a violation of the NAR safety code....and would be completely counter to the whole point of having a motor manufacturer do this. Obtaining loose BP for the ejection charge, even for a single 'proof of concept' test, would also require me to go get all the paperwork and storage lockers. Last but not least, I do not happen to have a handy supply of unused 13mm motor cases, or the secret Estes receipe for delay charge either.
I think if a manufacturer thinks this is worth looking into, they would be far better equipped to run a test or two.
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Use an AeroTech RMS delay module and a prepackaged AeroTech EFC ejection charge. You would just need to find the right-sized container to hold them. One that wouldn't catch fire during the test. Do a ground test first. You aren't modifying a motor, you aren't attempting to make a motor, and in a ground test, you aren't launching anything.
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Mark S. Kulka NAR #86134 L1,_ASTRE #471_Adirondack Mountains, NY
Opinions Unfettered by Logic • Advice Unsullied by Erudition • Rocketry Without Pity
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