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.^[1] The US Army Homing Overlay Experiment also used the M551E1 as the first stage.^[2]

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)^[3]

References

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

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