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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.
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Last update 12 March 2001.
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© Mark Wade, 2001 .