Centaur Credit - © Mark Wade

Class: Tug. Nation: USA.

Upper stage / space tug - out of production. Launched by Atlas I.

Unit Cost $: 20.300 million. Length: 9.15 m (30.01 ft). Basic Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Mass: 15,600 kg (34,300 lb). Main Engine: RL-10A-3A. Main Engine: 141 kg (310 lb). Main Engine Thrust: 146.800 kN (33,002 lbf). Main Engine Propellants: Lox/LH2. Main Engine Propellants: 13,900 kg (30,600 lb). Main Engine Isp: 444 sec.