rsbhunter
Well-Known Member
Not looking for a definitive answer, but if I'm using a F40-7w in a (Madcow DX3 2.6" ) rocket, and I add 1 oz weight , is there a big loss of apogee height? I've tried using roc sim, but guys I'll be honest, I'm 69 years old and it's kicking my butt! Thanks for any replies....rsbhunter