Encyclopedia Astronautica
M55A1


Thiokol solid rocket engine. 792 kN.

Gross mass: 22,900 kg (50,400 lb).
Unfuelled mass: 2,500 kg (5,500 lb).
Height: 7.50 m (24.60 ft).
Diameter: 1.68 m (5.51 ft).
Thrust: 792.00 kN (178,048 lbf).
Burn time: 59 s.

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Associated Countries
See also
Associated Manufacturers and Agencies
  • Thiokol American manufacturer of rocket engines and rockets. Thiokol Corporation, Ogden, UT, USA. More...

Associated Propellants
  • Solid Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. More...

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