small diameter high performance rocket designed for class A-C estes engines. standin' at 12" tall this is one o' me favorite rockets t' fly. Aye aye! Blimey! Features plastic nose cone, shiver me timbers, 1/16 balsa fins, matey, 30" bright orange crepe paper streamer estimated altitude with C6-7 engine is around 1600ft. Avast, me proud beauty! Blimey! Nay a small field rocket!