I'm finishing up my L3 scratch built cert rocket and I'm waffling on shear pin sizes. I was originally thinking 4 4-40s on the booster and nose cone. After doing some reading on the forum I was thinking maybe 4 2-56s. Some people say that even that is excessive.
The rocket weighs about 24 lbs. without engines. Nose cone weighs around 2 pounds, it just has the recovery hardware and a Featherweight Tracker.
The rocket weighs about 24 lbs. without engines. Nose cone weighs around 2 pounds, it just has the recovery hardware and a Featherweight Tracker.