stantonjtroy
Well-Known Member
Ok, I know the rule of thumb is a 5:1 thrust to weight ratio for a good, safe boost off the pad. Rocket weight is easy, just weigh the thing. Power is easy, get it off the thrust curve. My question is Which power figure do I use for THIS PARTICULAR rule of thumb (5:1). Do I use peak thrust, average thrust or total impulse? I would assume average but I don't like to assume. Any help would be appriciated.