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[Creepin_pyro]

I've just finished refining my little rockets. After having much fun using "lo-Tack" sellotape casings (1" long), straw (the organic kind) for a stick, and the "screwdriver up the bum" core forming method, I've moved on to slightly larger ones, resulting in the widest pyro-related grin I've ever experienced .
I'm using super-glued card dry-rolled casings 1.5" long 0.85g, about 1.9g meal powder, resulting in a rocket which weighs in at just over 6g, after adding nozzle, stick, and a little payload. All this is done on my improvised rocket tooling, which uses a cylindrical cored Neodymium Magnet, a nail-like object, and an allen-key driver fitting. I want to start experimenting with different breaks with these rockets, but am a little concerned about weight. The maximum weight I have successfully launched was just over 7g, but one weighing 9.8g only made it about 2m up. Does anyone have any thoughts on how I can increase the thrust while using the same tooling?..... smaller nozzle, larger/longer core, etc?
What is the maximum percentage of Ti I should add to motors to ensure I don't turn my rocket motor into a fountain?

Cheers guys.

Edited by Creepin_pyro, 01 April 2004 - 03:31 PM.