Center of Mass
http://tclauset.org/21_BtlRockets/BTL.html (third video)
We want the center off mass to be towards the top of the rocket so it flies straighter. We can find where the center off mass is by balancing the rocket on an finger. The center of mass can be moved upward by adding weight to the nose cone. The rocket should weigh 200-240g.
I agree. I looked at the parachute website and it actualy helps the chute also when the mass is in the cone and if we are going for hang time than it would be good to have a shute.
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