AKA: Aerobee Jr. Status: Retired 1962. Thrust: 11.50 kN (2,585 lbf). Gross mass: 500 kg (1,100 lb). Unfuelled mass: 119 kg (262 lb). Burn time: 40 s. Height: 3.60 m (11.80 ft). Diameter: 0.38 m (1.24 ft).