Encyclopedia Astronautica
R-56 Polyblock ICBM

R-56 Transport Route
R-56 Transport Routes from the Yangel factory to the cosmodromes via the Soviet canal system.
Credit: © Mark Wade
Ukrainian intercontinental ballistic missile. Tsniimash has 1:10 structural simulation model. Three stage carrier rocket with consecutive first and parallel second stages. Range indicated on placard; possibly considered as monster ICBM in competition with UR-500. Work began in 1961.

Standard warhead: 35,000 kg (77,000 lb). Maximum range: 16,000 km (9,000 mi).

AKA: 8K68.
Gross mass: 1,197,000 kg (2,638,000 lb).
Payload: 35,000 kg (77,000 lb).

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Associated Countries
See also
  • R-56 The R-56 was Yangel's ultimate superbooster design. Trade studies begun in 1962 resulted in a conventional tandem stage design capable of being transported on the Soviet canal system from the factory to the launch site, while still placing 40 metric tons into low earth orbit. However various Soviet government factions favored the much larger (and less practical) Korolev N1 or Chelomei UR-700 designs. Yangel made one last attempt to convince the government to sponsor a common approach to the lunar program, with different design bureaus concentrating on just one part of the mission, as the American's were doing. But his practical solutions obtained no traction, and further work on the R-56 was abandoned. More...
  • missile Guided self-propelled military weapon (as opposed to rocket, an unguided self-propelled weapon). More...

Associated Manufacturers and Agencies
  • Yuzhnoye Ukrainian manufacturer of rockets, spacecraft, and rocket engines. Yangel Design Bureau, Dnepropetrovsk, Ukraine. More...

Associated Stages
  • R-56 Polyblock Stage A Nitric acid/Kerosene propellant rocket stage. Loaded/empty mass 222,000/18,000 kg. Thrust 4,410.00 kN. Vacuum specific impulse 320 seconds. Range 16,000 km. Payload 35,000 kg. Tsniimash has 1:10 structural simulation model. Three stage carrier rocket with consecutiveively divided first and paraell divided second stages. Work began in 1961. Chief designer Yangel. Source: Placard, TsNIIMASH. More...
  • R-56 Polyblock Stage B Nitric acid/Kerosene propellant rocket stage. Loaded/empty mass 55,500/5,000 kg. Thrust 784.00 kN. Vacuum specific impulse 330 seconds. More...

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