AKA: Skylark 4-2. Status: Retired 1989. Thrust: 50.10 kN (11,263 lbf). Gross mass: 1,100 kg (2,400 lb). Unfuelled mass: 230 kg (500 lb). Burn time: 30 s. Height: 5.40 m (17.70 ft). Diameter: 0.44 m (1.44 ft).