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N-11 Block A
Part of N1 Block B Family

NK-15 / 11D51

NK-15 / 11D51
NK-15 / 11D51 rocket engine for first stage of N1
Credit: © Mark Wade

LOx/Kerosene propellant rocket stage. Derived from N1 Block B, with large number of engines and expansion ratio adjusted for sea level operation. Includes 3500 kg Stage 2-Stage 3 interstage.

Status: Study 1963. Thrust: 11,960.00 kN (2,688,710 lbf). Gross mass: 485,000 kg (1,069,000 lb). Unfuelled mass: 47,000 kg (103,000 lb). Specific impulse: 330 s. Specific impulse sea level: 293 s. Burn time: 117 s. Height: 20.00 m (65.00 ft). Diameter: 6.80 m (22.30 ft). Span: 9.80 m (32.10 ft).

No Engines: 8.



Country: Russia. Engines: NK-15V. Launch Vehicles: N11, N11GR, N11 1963. Propellants: Lox/Kerosene.
Photo Gallery

NK15 engineNK15 engine
NK-15 / 11D51 rocket engine for first stage of N1
Credit: © Mark Wade



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