AKA: Hydra-Iris-1. Status: Retired 1968. Thrust: 17.00 kN (3,821 lbf). Gross mass: 500 kg (1,100 lb). Unfuelled mass: 112 kg (246 lb). Burn time: 52 s. Height: 4.00 m (13.10 ft). Diameter: 0.30 m (0.98 ft).