AKA: Keldysh Bomber. Status: Design 1946. Thrust: 980.00 kN (220,310 lbf). Gross mass: 100,000 kg (220,000 lb). Unfuelled mass: 29,500 kg (65,000 lb). Specific impulse: 285 s. Specific impulse sea level: 252 s. Burn time: 180 s. Height: 28.00 m (91.00 ft). Diameter: 3.60 m (11.80 ft). Span: 15.00 m (49.00 ft).