This page no longer updated from 31 October 2001.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

Gross Mass: 20,135 kg. Empty Mass: 1,435 kg. Thrust (vac): 16,000 kgf. Isp: 303 sec. Burn time: 375 sec. Propellants: Nitric acid/UDMH Diameter: 2.4 m. Span: 2.4 m. Length: 6.0 m. Country: Ukraine. No Engines: 1. 11D49 Status: Hardware. Other designations: S3. Comments: Launch count 411 orbital and ca. 300 suborbital to end 1994. Failures based on proration of failures to orbit.
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Last update 12 March 2001.
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© Mark Wade, 2001 .