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astronautix.com Proton-2


Gross Mass: 134,900 kg. Empty Mass: 13,180 kg. Thrust (vac): 244,650 kgf. Isp: 325 sec. Burn time: 160 sec. Propellants: N2O4/UDMH Diameter: 4.2 m. Span: 4.2 m. Length: 10.9 m. Country: Russia. No Engines: 4. RD-0210 Status: Hardware. Comments: Proton UR-500 second stage. Flew only on two-stage version of Proton. Empty mass is correct; all other values estimated based on UR-500 Stage 2 original design and UR-500K stage 2 figures.
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Last update 12 March 2001.
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