Schuyler
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- Apr 8, 2009
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I'm working on a simple scratch built rocket and hoping to certify at NERFF in August. I'm planning to use an altimeter for ejection but to use motor ejection as a backup. I'll use a delay that should be long enough to eject after apogee in case the altimeter fails. I bought a Perfectflight MAWD and some Newton's 3rd canisters. Here are my questions:
1) If the altimeter ejection system fails and the rocket is "saved" by the motor eject is that considered a failure?
2) Does buying black powder require a permit? If so, what is the best substitute? I have read that some substitutes are not reliable with these canisters.
3) I know I should test the ejection charge but I live in an apartment and I don't know where to do this without attracting unwanted attention. How do others get around this problem?
Any other advice is appreciated.
1) If the altimeter ejection system fails and the rocket is "saved" by the motor eject is that considered a failure?
2) Does buying black powder require a permit? If so, what is the best substitute? I have read that some substitutes are not reliable with these canisters.
3) I know I should test the ejection charge but I live in an apartment and I don't know where to do this without attracting unwanted attention. How do others get around this problem?
Any other advice is appreciated.