General Motors XM-1 - History, Performance, and Discussion

A place for discussion of the General Motors XM-1 and possibly of its’ counterpart, Chrysler’s proposal.

Known issues in-game;
In short:

  • The XM-1 (General Motors & likely also the Chrysler) had not yet tested or implemented a tank thermal sight.
  • The XM-1 (General Motors) primary gunner’s sight field of view should be reduced in zoom from 12x to 10x
  • The XM-1 (General Motors) elevation should be increased from 15 to 20 degrees
  • The XM-1 (General Motors) should have a commander’s sight
  • The XM-1 (General Motors) should have gun slaving (designation) from the commander’s sight

@Rastmust reported the majority of these inaccuracies highlighting the issues with a 1978 primary source covering the fire control system in great detail.
https://community.gaijin.net/issues/p/warthunder/i/8rEHVNo2RSiI

@Smoak741 covered the elevation and zoom inaccuracies respectively.
https://community.gaijin.net/issues/p/warthunder/i/oWWYlNTRdiQN
https://community.gaijin.net/issues/p/warthunder/i/NCqhabvYfYc6

This is a thread to discuss the vehicles, as well as request more open sources detailing the performances of these two vehicles.

Gaijin wrote a wonderful article on their history and implementation here;

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Placeholder

Abrams: A History of the American Main Battle Tank by R.P. Hunnicutt is a great source for the Abrams prototype stages, primarily referencing reports and official documents.

Jane’s Armour and Artillery 1979-80, 1981-82, 1982-83 and 1983-84 also give history and details although they are somewhat inaccurate.

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The XM1 Chrysler’s fire control system was chosen for the production M1 Abrams, including the Thermal Imaging System (TIS) used on it.

I don’t think Hughes thermal imaging system was tested on the Chrysler XM-1. Did you find a source saying otherwise?

Should probably change the thread title to General Motors, as General Dynamics was who bought Chrysler Defense later on in 1982 and now makes the M1 tanks.

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A silly mistake on my part lol

I guess the Chrysler prototype didn’t have thermals since this Hughes brochure says the TIS was installed nine months after the contract (last sentence). I reported it.

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