This page no longer updated from 31 October 2001. Latest version can be found at Fregat

Fregat stage
Fregat stage
Fregat upper stage for Soyuz launch vehicle.

Credit: Starsem. 20,966 bytes. 530 x 356 pixels.

Gross Mass: 6,535 kg. Empty Mass: 1,100 kg. Thrust (vac): 2,000 kgf. Isp: 327 sec. Burn time: 877 sec. Propellants: N2O4/UDMH Diameter: 3.4 m. Span: 3.4 m. Length: 1.5 m. Country: Russia. No Engines: 1. S5.92 Status: Hardware. Comments: Upper stage developed from propulsion bus for Lavochkin lunar and planetary probes (Luna Ye-8, Mars M1, Fobos 1F). 20 restarts.
Back to Index
Last update 12 March 2001.
Definitions of Technical Terms.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .