Launch of PEGASUS-I on an Aerotech F36J to an altitude of 958' A slight fin mis-alignment causes a rapid spin upon ascent. Perfectflite Stratologger SL-100 altimeter was set up as dual-deploy, with streamer recovery initiated by the engine's ejection charge and the main parachute set to deploy at 300' Main ejection charge was .7 grams Pyrodex P. Additional altimeter was a Jolly Logic Altimeter Two, providing Acceleration, Velocity, Max. Altitude and other valuable flight data.