This page no longer updated from 31 October 2001. Latest version can be found at NK-9V-11D53

Manufacturer Name: NK-9V-11D53. Government Designation: 11D53. Other Designations: NK-21. Designer: Kuznetsov. Application: N-1 stage 3 (block V). Propellants: Lox/Kerosene Thrust(vac): 45,785 kgf. Thrust(vac): 449.00 kN. Isp: 340 sec. Isp (sea level): 312 sec. Chambers: 1. Country: Russia. Status: Out of Production. References: 341 . Comments: Modification of NK-9 engine for the N-1 lunar rocket. May be identical to NK-21 (stage 3).
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Last update 12 March 2001.
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© Mark Wade, 2001 .