I'm working on my L3 cert rocket, and am planning to use my HyperTEK Armageddon M for propulsion. First flight will use a single motor.
However, I have a love of clusters, and of airstarts, and of hybrid motors, in general.
So, for my *second* flight, I'm planning to airstart two additional motors. For sheer coolness factor, and to be the first who has done it, I'm planning on making the two airstarted motors be 54mm
*HyperTEK* hybrid motors, probably in the K240 configuration.I've already worked out how to carry an oxygen source on-board, and am working on the electronics needed to do a sequenced O2 solenoid and ignition trigger. It'll add a few pounds, and require some space, but it's a 10 foot tall 10.5" diameter rocket lifting on an Armageddon M, and I'm not too worried about minor issues like that....
What I *am* worried about is dropping stainless steel fill tube "stingers" from altitude. Has anyone ever tried filling and firing a HyperTEK 54mm motor using nylon and/or acrylic tubing to make the fill stem assembly?
Also, to reduce complexity slightly, I'm wondering if anyone has ignited these same motors using standard electric matches instead of the high voltage speaker-wire sparkers. I'm concerned that the match heads might partially block or damage the nozzles as they are expelled after ignition....
Any suggestions or advice will be appreciated.
Thanks!
- Rick "Creative complexity" Dickinson