An interesting thread in another forum (via the Tanks reddit). I had a bit of a search, but couldn't see this elsewhere on the forum. Also via the same source, some restored Russian vehicles of World War II.
I really appreciated this post. A bit is written about the experimental heavies derived from the M26. For years we had a post-war M103 in front of the National Guard armory but it was shipped to a museum, only 300 ever being built. It was an experiment itself and increased my interest in US heavies. Wish I had photographed it. GB
I'm sorry here guys, but the non-produced M6 "Heavy" was an idea that clearly wasn't a good one at the time it was proposed and the prototypes were made in 1940-42. The "Pershing" M-26 was derived from the M-6, not the other way round. Goto: United States' M6 Heavy - World War II Vehicles, Tanks, and Airplanes The M-6 was a possible "good heavy" for it's time when designed (late thirties) to compliment the other sizes, but by the time the war got going, it was simply wrong for the battlefield as it developed.