Encyclopedia Astronautica
Viking-1


Lox/Alcohol rocket stage. 93.00 kN (20,907 lbf) thrust. Mass 4,500 kg (9,921 lb).

Status: Retired 1957.
Gross mass: 4,500 kg (9,900 lb).
Unfuelled mass: 800 kg (1,760 lb).
Height: 14.90 m (48.80 ft).
Diameter: 0.81 m (2.65 ft).
Thrust: 93.00 kN (20,907 lbf).
Burn time: 70 s.

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Associated Countries
Associated Engines
Associated Launch Vehicles
  • Viking American sounding rocket. The Viking sounding rocket, originally code-named Neptune, was conceived in 1945 by the US Naval Research Laboratory (NRL) as having the same altitude capability as the V-2 but only one third the mass. Martin was given the contract to develop the rocket, and Reaction Motors the engine. The advanced design featured a gimbaled pump-fed engine, a fuel tank integral with the fuselage. All rockets would be static-tested and certified before launch. The first launch was on 3 May 1949. Viking was abandoned in 1954 as too expensive, but Martin's experience on the design led to the first stage of the Vanguard orbital launch vehicle and the Titan ICBM. More...

Associated Manufacturers and Agencies
  • Martin American manufacturer of rockets, spacecraft, and rocket engines. Martin Marietta Astronautics Group (1956), Denver, CO, USA. 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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