Taking into account what I do for a living , I consider myself to be an amateur historian, but this particular item has me stumped. I knew that the United States government had submitted several requests to American manufacturers for a new tank design during World War II, but I never knew that the M6 heavy tank had even made it off of the drawing board, let alone had made it into even limited production.
I feel it was a mistake that this particular tank wasn’t put into mass production, because if it had, it would have set the gold standard for every tank design in World War 2 and given the United States military a serious advantage over the Axis powers.
Little known, the M6 was the first modern US heavy tank. The only other heavy tank built in series was the Liberty or Mark VII, a joint US-British design, produced in 1918, of the WWI-era lozenge type. When the Second World War broke out, the successful German campaign of 1940 gave a spur to US tank development. Already, on 20 May 1940, the Chief of Infantry recommended to the US Army Ordnance Corps to study a 50-ton tank design.
Here’s what Wikipedia has to say about the M6 Heavy Tank:
H/T – Wikipedia