Encyclopedia Astronautica
Samolyot 5



biesno5.jpg
Biesnovat 5 Aircraft
Russian manned rocketplane. Cancelled 1949. Bisnovat was assigned the project to develop an all-Soviet equivalent to the 346 supersonic rocketplane being developed by the German Roessing team in OKB-2.

Like the 346, the 5 was a swept-wing aircraft, but about 2/3 the size. First glide flight by A K Pakhomov, dropped from a Pe-8, came on 14 July 1948. The first 5-1 aircraft was destroyed on its third flight 5 September 1948. The 5-2 second aircraft, with RD-2M3BF rocket engine installed, made its first flight on 26 January 1949. After five unpowered flights, the program was cancelled in June 1949. By that time better-funded turbojet-powered fighter prototypes were already achieving the 1200 km/hr top speed of the 5. Biesnovat and Isayev would elaborate the design in unmanned form into the supersonic R-1 air-to-surface missile.

Crew Size: 1.

Gross mass: 3,400 kg (7,400 lb).
Unfuelled mass: 1,900 kg (4,100 lb).
Height: 9.92 m (32.54 ft).
Span: 6.60 m (21.60 ft).
Thrust: 19.60 kN (4,406 lbf).

More... - Chronology...


Associated Countries
See also
  • Russian Rocketplanes The story of rocketplanes and spaceplanes in the Soviet Union was one of constant setbacks due to internal politics, constant struggle with little result. More...

Associated Manufacturers and Agencies
  • Bisnovat Russian manufacturer of spacecraft. Bisnovat Design Bureau, Russia. More...

Associated Propellants
  • Nitric acid/Kerosene Drawing on the German World War II Wasserfall rocket, nitric acid (HNO3) became the early storable oxidiser of choice for missiles and upper stages of the 1950's. To overcome various problems with its use, it was necessary to combine the nitric acid with N2O4 and passivation compounds. These formulae were considered extremely secret at the time. By the late 1950's it was apparent that N2O4 by itself was a better oxidiser. Therefore nitric acid was almost entirely replaced by pure N2O4 in storable liquid fuel rocket engines developed after 1960. Rocket propellant RP-1, or its foreign equivalents, is a straight-run kerosene fraction, which is subjected to further treatment, i.e., acid washing, sulphur dioxide extraction. Thus, unsaturated substances which polymerise in storage are removed, as are sulphur-containing hydrocarbons. More...

Bibliography
  • Butowski, Piotr, "Black Reds", Air Forces Monthly Special, X-Planes, February 1998, p. 35.
  • Anisimov, V S; Lacefield, T C; Andrews, J, "Evolution of the NK-33 and NK-43 reusable LOX/kerosene engines", AIAA Joint Propulsion Conference, via Dietrich Haeseler.

Samolyot 5 Chronology


1948 July 14 - .
  • Samolyot 5 rocketplane first flight. - . Crew: Pakhomov. Nation: USSR. Related Persons: Pakhomov. Spacecraft: Samolyot 5. Summary: The first 5-1 aircraft, controlled on its first glide flight by A K Pakhomov, was dropped from a Pe-8 bomber..

1948 September 5 - .
  • Samolyot 5 rocketplane crashes. - . Crew: Pakhomov. Nation: USSR. Related Persons: Pakhomov. Spacecraft: Samolyot 5. Summary: The first 5-1 aircraft was destroyed on its third glide flight..

1949 January 26 - .
  • Samolyot 5 supersonic rocketplane glide flight. - . Nation: USSR. Spacecraft: Samolyot 5. Summary: The 5-2 second aircraft, with rocket engine installed, made its first glide flight..

1949 June - .
  • Samolyot 5 supersonic rocketplane cancelled. - . Nation: USSR. Related Persons: Isayev. Spacecraft: Samolyot 5. After five unpowered flights, the program was cancelled. By that time better-funded turbojet-powered fighter prototypes were already achieving the 1200 km/hr top speed of the 5. Biesnovat and Isayev would elaborate the design in unmanned form into the supersonic R-1 air-to-surface missile.

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