 | Engine 11D68 detail Credit - © Mark Wade
| Class: Tug. Nation: Russia. Upper stage / space tug - out of production. Block D adapted as lunar crasher stage The Block D stage for the N1 was developed from the Soyuz B. Length: 5.70 m (18.70 ft). Basic Diameter: 2.90 m (9.50 ft). Span: 2.90 m (9.50 ft). Mass: 18,200 kg (40,100 lb). Main Engine: RD-58. Main Engine: 300 kg (660 lb). Main Engine Thrust: 83.300 kN (18,727 lbf). Main Engine Propellants: Lox/Kerosene. Main Engine Propellants: 14,700 kg (32,400 lb). Main Engine Isp: 349 sec.
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