During the development of the M103, numerous guns were proposed ranging from 90 mm to 120 mm in caliber. Eventually the Army Staff settled for a 120 mm selection. The decision to mount the 120 mm T123E1 caused a crisis of development for the ammunition, as the ammunition for the previously selected T122 was incompatible with this new gun. During this time, a strange proposal came out of Detroit Arsenal in September 1950 to study a complete redesign of the tank.
The gun selected was a variant of the 90 mm T15, which had previously been experimented on as an upgrade for the M26 Pershing. The gun also lacked a conventional mantlet, with a gun shield positioned on the inside of the turret, reminiscent of some British designs. The turret itself was made far more elliptical and compact. While the hull retained its seven road wheels, additional rollers were added.
These changes were aimed at reducing the overall weight of the vehicle to 45 tons, use already-made designs, and accelerate the development process. However, this proposal was clearly disregarded and the design never went past the mock-up stage. Clearly, the advocates for a 90 mm gun in the Army Staff had not quite yet conceded their positions.
This tank might be best compared to German VK 45.03. The T43 ASP would have better armor and a better gun, but it would be less mobile and possibly have worse DPM to compensate for its firepower.
Guns: 90 mm Gun T15E2
Engines: Continental AV-1790-5B (810 hp)
Turrets (Turret Armor (mm)): T43 ASP (??/??/??)
Turrets (Turret Armor (mm)): T43 ASP (??/??/??)
Suspensions/Alternate Hulls, Total Weight (metric tons): T43 ASP (40.82)
Hull Armor (mm): 127/51/38
Top Speed: 35 km/h
Crew: 5 (Driver; Gunner; Loader; Loader; Commander/Radio)
See Also: M103
Sources:
See Also: M103
Sources:
Hunnicutt, R. P. Firepower, 2017.
Estes, K. W. M103 Heavy Tank 1950-74, 2013.
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