In June 1941, an experiment was carried out to determine the feasibility of mounting a 75 mm or 105 mm howitzer on the chassis of the M3 light tank. While the restricted space of the chassis made the installation of a 105 mm howitzer impossible, a 75 mm howitzer proved promising. Two proposals were made, the first being designated as the T17 howitzer motor carriage. This was a 75 mm howitzer mounted to the chassis of an M1E3 combat car. This chassis provided more space in the fighting compartment, but it was dropped at the drawing board stage because it was soon required to use the standardized M3 chassis. This vehicle would become the T18 HMC.
However, by the time the first T18 pilot was completed in May 1942, superior 75 mm howitzer motor carriages were already in development. The best of these, the T47 HMC, would go on to become standardized as the M8 HMC, later known as the M8 Scott. In fact, the T18 was cancelled a month earlier, before the first pilot could even be trialed.
Really, I'm not changing anything about this tank, except for giving it a third crew member. It's fairly well represented already.
Guns: 75 mm Howitzer M1A1
Engines: Guiberson T-1020-4 (245 hp); Continental W-670-9A (262 hp)
Suspensions/Alternate Hulls, Total Weight (metric tons): T18 HMC (??); T18 HMC Improved (??)
Hull Armor (mm): 51/32/25
Top Speed: 48 km/h
Crew: 3 (Driver; Gunner/Commander/Radio; Loader)
Hunnicutt, R. P. Stuart. 1992.
This tank was in WoT at one point. Was turned into an SPG though.
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