Encyclopedia Astronautica
M56A-1


Aerojet solid rocket engine. 228.5 kN. Out of Production. Used in Aries. Isp=297s.

Thrust (sl): 207.700 kN (46,693 lbf). Thrust (sl): 21,182 kgf.

Status: Out of Production.
Gross mass: 5,170 kg (11,390 lb).
Unfuelled mass: 466 kg (1,027 lb).
Height: 3.96 m (12.99 ft).
Diameter: 1.13 m (3.70 ft).
Thrust: 228.50 kN (51,369 lbf).
Specific impulse: 297 s.
Specific impulse sea level: 270 s.
Burn time: 60 s.

More... - Chronology...


Associated Countries
See also
Associated Manufacturers and Agencies
  • Aerojet American manufacturer of rockets, spacecraft, and rocket engines. Aerojet, Sacramento, CA, 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...

Associated Stages
  • M56 Solid propellant rocket stage. Loaded/empty mass 5,170/466 kg. Thrust 228.40 kN. Vacuum specific impulse 297 seconds. Second stage of Minuteman I. Used as first stage of Aries sounding rocket and various SDI targets in 1980's. More...

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