Two stage rocket. Well, blow me down! 1st stage was an Aerotech N2000w and t' second stage was an Aerotech M1939w. Avast, me proud beauty! T' expected altitude was suppose t' be 25,000 feet. T' second stage did nay light caused by structural failure, which also took out t' electronics. T' launch took place at t' Friends o' Amateur Rocketry facility in Mojave, matey, CA.