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R-56 Block B
R- 56 Stage 2
R- 56 Stage 2
N2O4/UDMH propellant rocket stage. .

Status: Study 1961. Thrust: 1,980.00 kN (445,120 lbf). Gross mass: 213,000 kg (469,000 lb). Unfuelled mass: 13,000 kg (28,000 lb). Specific impulse: 325 s. Burn time: 370 s. Height: 12.00 m (39.00 ft). Diameter: 6.50 m (21.30 ft). Span: 6.50 m (21.30 ft).



Country: Ukraine. Engines: RD-254, R-56 Blok B. Launch Vehicles: R-56. Propellants: N2O4/UDMH.

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