I've recently scratch-built a rocket similar to the LOC Onyx. The closer I
get to actual launch time, the more concerned I am about stability. I've
built many low- to mid-power rockets, but this is my first really stubby
one. It's designed to fly on 29/180-240 reloads. I don't have access to, or
knowledge of, any prediction programs. What I need to know is, does the
stock Onyx use nose weight, and if so how much? And does that weight go at
the very tip of the nosecone, or at the base? My rocket is 3" diameter, 31"
long (20" body tube, 11" nosecone). Has four rather large fins (7" root
edge) that are 1/4" thick (should produce enough extra drag to move
effective CP back somewhat). Any help would be greatly appreciated.
NAR # 71940