Scratch-built from 2" diameter mailing tubes, "Air Mail" is 53" tall and weighs 23 ounces. G80-10 Blue Thunder Aerotech single use motor. Homemade 10" mylar drogue chute broke and fouled the main chute which was using a Jolly Logic Chute Release set for 300 feet. Rocket flat-spinned all the way to the ground, and somehow suffered no damage. I'll use one of my Phylachutes drogue parachutes next time!