This page no longer updated from 31 October 2001. Latest version can be found at N1 Block V-III

Gross Mass: 325,000 kg. Empty Mass: 35,000 kg. Thrust (vac): 240,000 kgf. Isp: 440 sec. Burn time: 510 sec. Propellants: Lox/LH2 Diameter: 8.0 m. Span: 8.0 m. Length: 27.0 m. Country: Russia. No Engines: 6. RD-57 Status: Design 1965. Comments: N1 improvement study, 1965. Lox/LH2 replacement for Block V third stage. Pursued into 1966 and later, but later efforts concentrated on Block S, R, and SR cryogenic stages.
Back to Index
Last update 12 March 2001.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .