 | N2 Credit - © Mark Wade
| Orbital launch vehicle. Year: 1964. Family: N. Country: Russia. Status: Study 1963. Article Number: 11A53. A military variant of the N-11 which would use a powerful third stage, probably derived from the first stage of the 8K713 GR-1, to put up to 24 tonnes in low earth orbit. This was a competitor with Chelomei's UR-500K, which was selected instead for the heavy military payload mission. Manufacturer: Korolev. LEO Payload: 24,000 kg (52,000 lb). to: 300 km Orbit. at: 51.60 degrees. Liftoff Thrust: 10,610.000 kN (2,385,220 lbf). Total Mass: 770,000 kg (1,690,000 lb). Core Diameter: 9.80 m (32.10 ft). Total Length: 60.00 m (196.00 ft). Stage Data - N-11 1963 - Stage Number: 1. 1 x Stage: N-11 Block A. Gross Mass: 485,000 kg (1,069,000 lb). Empty Mass: 47,000 kg (103,000 lb). Thrust (vac): 11,960.000 kN (2,688,710 lbf). Isp: 330 sec. Burn time: 117 sec. Isp(sl): 293 sec. Diameter: 6.80 m (22.30 ft). Span: 9.80 m (32.10 ft). Length: 20.00 m (65.00 ft). Propellants: Lox/Kerosene. No Engines: 8. Engine: NK-15V. Status: Study 1963. 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.
- Stage Number: 2. 1 x Stage: N-11 Block B. Gross Mass: 192,000 kg (423,000 lb). Empty Mass: 18,000 kg (39,000 lb). Thrust (vac): 1,560.000 kN (350,700 lbf). Isp: 347 sec. Burn time: 372 sec. Diameter: 4.80 m (15.70 ft). Span: 6.80 m (22.30 ft). Length: 12.00 m (39.00 ft). Propellants: Lox/Kerosene. No Engines: 8. Engine: NK-19. Status: Study 1963. Derived from N1 Block V.
- Stage Number: 3. 1 x Stage: N-11 1963 - V. Gross Mass: 70,000 kg (154,000 lb). Empty Mass: 6,000 kg (13,200 lb). Thrust (vac): 784.000 kN (176,250 lbf). Isp: 347 sec. Burn time: 273 sec. Diameter: 2.68 m (8.79 ft). Span: 2.68 m (8.79 ft). Length: 18.00 m (59.00 ft). Propellants: Lox/Kerosene. No Engines: 4. Engine: NK-19. Status: Study 1963. Conjectural stage derived from GR-1 stage 1 to match total mass given of launch vehicle.
Bibliography and Further Reading - Vetrov, G S, S. P. Korolev i evo delo, Nauka, Moscow, 1998. ISBN: 5020036846. The collected papers of Soviet Chief Designer Korolev. A tremendous source of new information and insight on the Soviet space program. Russian language. More at amazon.com...
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