This page no longer updated from 31 October 2001. Latest version can be found at GR-1 Stage 2

Gross Mass: 25,000 kg. Empty Mass: 2,100 kg. Thrust (vac): 45,000 kgf. Isp: 340 sec. Burn time: 170 sec. Propellants: Lox/Kerosene Isp(sl): 240 sec. Diameter: 2.7 m. Span: 2.7 m. Length: 9.2 m. Country: Russia. No Engines: 1. NK-9V Status: Development 1964. Other designations: 8K513 Blok B. Comments: Masses estimated based on total vehicle mass of 117 tonnes. Developed into Molniya/Soyuz second stage.
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 .