AKA: Titan C. Status: Development ended 1961. Thrust: 666.00 kN (149,722 lbf). Gross mass: 57,400 kg (126,500 lb). Unfuelled mass: 6,000 kg (13,200 lb). Specific impulse: 403 s. Specific impulse sea level: 350 s. Burn time: 300 s. Height: 19.50 m (63.90 ft). Diameter: 4.07 m (13.35 ft). Span: 4.07 m (13.35 ft).