Block L Molniya 8K78

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Class: Tug. Nation: Russia.

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

Originally designed by Korolev; passed to Isayev for production. Began a series of engines leading through the 8D726 for GR-1 to the Block D for the N1 and Proton. Earliest versions with 6380 kgf and 338.5 sec specific impulse.

Unit Cost $: 3.000 million. Length: 2.84 m (9.31 ft). Basic Diameter: 2.56 m (8.39 ft). Span: 2.56 m (8.39 ft). Mass: 5,100 kg (11,200 lb). Main Engine: S1.5400. Main Engine: 153 kg (337 lb). Main Engine Thrust: 65.410 kN (14,705 lbf). Main Engine Propellants: Lox/Kerosene. Main Engine Propellants: 4,020 kg (8,860 lb). Main Engine Isp: 340 sec.

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