Originally posted by bachsta
im going to be building a mach buster/ minimum diameter type rocket does anyone who has built one before have any tips?
Originally posted by bachsta
ive just built a few estes kits that ive modded myself but what i really want to know is stuff like fin design and diameter to length ratios, nose cones to use, and how to keep it light, stuff like that
Mine is 30" of 29mm motor tube, a PML conical urethane nose and three asymetric trapezoidal fins, with a longer leading edge than trailing; 30 degree angle between body and leading edge, 60 degree between body and trailing. They look like the fins on an AT Mustang. Good, but not best. My next one will use an Acme fin can; trapezoidal fins and all one piece for strength.
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