BGM-75 AICBM

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ZBGM-75
Type
Silos
, railway

The ZBGM-75 Advanced Intercontinental Ballistic Missile, also known as Weapons System 120A (WS-120A), was a program to develop an intercontinental ballistic missile (ICBM), proposed by the United States Air Force in the 1960s as a replacement for the LGM-30 Minuteman as the Air Force's standard ICBM. Funding was not allocated for the program and the project was cancelled in 1967.

Background

The Department of Defense began the

designation ZBGM-75,[2] the "Z" prefix indicating a project in the planning stage.[3]

The specifications for the ZBGM-75 called for a large

solid-fuel-powered missile,[4] which would be fitted with between 10 and 20 multiple independently targetable reentry vehicles (MIRVs).[5] The missiles would be based in silo launchers, which were specified to be hardened by a factor of 10 over the existing silos used by Minuteman missiles.[6] In addition, there was also a plan to develop a railroad-based deployment system for the AICBM.[2] Improvements in accuracy over existing missiles, combined with penetration aids under development to enhance the effectiveness of each missile, were expected to make the AICBM capable of defeating existing and projected Soviet anti-ballistic missile systems.[5]

Cancellation

Ultimately, the Navy won the STRAT-X competition with the design that would become the

mutually assured destruction—as the best method to keep the Soviet Union in a position where it must negotiate with the United States.[8]

After the cancellation of WS-120A, the Air Force made no further development of new ICBMs until 1972. In that year the MX project was begun, which resulted in the development of the LGM-118 Peacekeeper.[2] The Peacekeeper entered service in the mid-1980s and served until 2005;[9] the Minuteman III is still in service, and has outlasted both of its planned replacements.[10]

See also

References

Notes

  1. ^ Friedman 1994, p.202.
  2. ^ a b c d e Parsch 2003
  3. ^ Parsch 2009
  4. ^ Tammen 1973, p.88.
  5. ^ a b c Auten 2008, pp.42–43.
  6. ^ Hartunian 2003
  7. ^ Friedman 1994, p.204.
  8. ^ Auten 2008, p.43.
  9. ^ Edwards 2005
  10. ^ "AICBM". Encyclopedia Astronautica. Archived from the original on 7 January 2010. Retrieved 7 December 2009.

Bibliography