Encyclopedia Astronautica
R-5


Lox/Alcohol propellant rocket stage. Loaded/empty mass 27,250/3,250 kg. Thrust 479.22 kN. Vacuum specific impulse 244 seconds.

Propellant Formulation: Lox/92% Ethyl alcohol.

AKA: 8A62.
Status: Retired 1983.
Gross mass: 27,250 kg (60,070 lb).
Unfuelled mass: 3,250 kg (7,160 lb).
Height: 20.75 m (68.07 ft).
Diameter: 1.65 m (5.42 ft).
Span: 2.64 m (8.66 ft).
Thrust: 479.22 kN (107,733 lbf).
Specific impulse: 244 s.
Specific impulse sea level: 219 s.
Burn time: 112 s.
Number: 188 .

More... - Chronology...


Associated Countries
Associated Engines
  • RD-103M Glushko Lox/Alcohol rocket engine. 500.1 kN. R-5M 8K51. Isp=248s. First flight 1953. More...

Associated Launch Vehicles
  • R-5 Russian intermediate range ballistic missile. The R-5 was the first Soviet missile to be armed with a nuclear warhead, the first for which the new southern facility at Dnepropetrovsk took over full design and production responsibility. It was also the end of the road in being the ultimate extrapolation of German V-2 technology. Later missiles of both Yangel and Korolev would use other propellants and engine designs. More...
  • R-5M Russian intermediate range ballistic missile. The R-5M was the first Soviet missile to be armed with a nuclear warhead, and the first to launch a live nuclear warhead in test. The technical characteristics were virtually the same as those of the R-5 basic model, except for an increase in the propellant load. 48 launchers were deployed from 1956 to 1968, tipped with nuclear warheads of 80 kiloton, 300 kiloton, or 1 megaton. More...
  • R-5A Russian intermediate range ballistic missile. Vertical launch version of the R-5 missile for geophysical experiments retaining the nose cone of the IRBM, but equipped with a parachute recovery system. Experiments carried included solar ultraviolet spectroscopes, mass spectrometers for atmospheric composition studies, and capsules carrying dogs for zero-gravity biologically research. More...
  • R-5V Russian intermediate range ballistic missile. Vertical launch version of the R-5 missile for geophysical experiments under the Vertikal international program, equipped with a spherical re-entry capsule and a parachute recovery system. A wide range of international astrophysics and geophysics instruments were carried. More...
  • R-5B Russian intermediate range ballistic missile. More...
  • R-5 VAO Russian intermediate range ballistic missile. Vertical launch version of the R-5 missile for geophysical experiments using the High-Altitude Automatic Geophysical Station nose cone originally flown on the R-11, equipped with a parachute recovery system. . Experiments carried in the gyro-stabilised payload included solar ultraviolet spectroscopes and x-ray pinhole cameras. More...

Associated Propellants
  • Lox/Alcohol Liquid oxygen was the earliest, cheapest, safest, and eventually the preferred oxidiser for large space launchers. Its main drawback is that it is moderately cryogenic, and therefore not suitable for military uses where storage of the fuelled missile and quick launch are required. Alcohol (C2H5OH) was the fuel used for the German V-2 rocket, and the first derivative rocket engines in the United States, Soviet Union, and China used it as well. Better performance was achieved by increasing the alcohol concentration in the post-war engines. But after better-performance rocket-grade kerosene was developed by Rocketdyne in the REAP program of 1953, use of alcohol was abandoned. More...

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