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M55E1

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M55E1 is the designation of a United States solid fuel rocket that is used as the first stage of several expendable launch systems.

Uses

The M55E1 is used in the following systems:

Earlier versions of the Minuteman used the M55A1 for the first stage. The US Army Homing Overlay Experiment also used the M551E1 as the first stage.

Key Facts

  • Manufacturer: Thiokol
  • First Launch: March 14, 1970
  • Liftoff Thrust: 935,000 kN (210,196 lbf)
  • Total Weight: 30,000 kg (66,000 lb)
  • Diameter: 1.68 m (5.51 ft)
  • Length: 16.0 m (52.00 ft)

References

  1. Kyle, Ed. "Minuteman Launch Vehicle Flight History by Variant/Year (1959–2009)". Space Launch Report. Archived from the original on September 11, 2012.
  2. Pasch, Andreas. "Directory of U.S. Military Rockets and Missiles".
  3. Wade, Mark. "M55E1". Encyclopedia Astronautica. Archived from the original on 2008-08-30.


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