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N1 Block S
LOx/LH2 propellant rocket stage. Designed 1965-1971 as replacement for N-1 Blok G. Cancelled in 1971 in favor of development of single stage, Block Sr.

Status: Development ended 1971. Thrust: 392.00 kN (88,125 lbf). Gross mass: 58,000 kg (127,000 lb). Unfuelled mass: 8,000 kg (17,600 lb). Specific impulse: 440 s. Burn time: 540 s. Height: 16.00 m (52.00 ft). Diameter: 6.70 m (21.90 ft). Span: 6.70 m (21.90 ft).



Subtopics

N1 Block Sr LOx/LH2 propellant rocket stage. Upper stage developed 1971-1974 to support manned lunar expedition. Replaced Blok R/Blok S previously under development. Capable of five restarts and 11 days of flight. Could insert 24 metric tons into lunar orbit or 20 metric tons into geosynchronous orbit.

Vulkan Blok V LOx/LH2 propellant rocket stage. Upper stage design by KB Saturn for manned lunar expedition, large geosynchronous platform launch.

Country: Russia. Engines: RD-57. Launch Vehicles: N1M, N1F-L3M. Propellants: Lox/LH2.

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