![]() ![]() January 1943 – built in Arsenal Tank in Detroitįebruary 1943 – preparation for shipment overseas as a marking that we found on the front proves it) But we can still figure out the outlines: We did not find the name of this tank so we don’t know its story. There was no M4A4 in the French 2nd Armored Division. It belonged to the 274 M4A4 that were delivered to the French Army and equipped 4 regiments in the 1st and 5th French Armored Division during WW2. (Our second Sherman (Champaubert) is identical but was built in February 1943, serial number 18505). This Sherman M4A4 was built in January 1943. Its serial number is 18059, so its registration number is 3018365. ![]() During World War II, Continental Motors built the R-975 under license as a powerplant for Allied tanks and other armored vehicles. The engine installed in our Sherman tank is derived from the Wright R-975 Whirlwind which was a series of nine-cylinder air-cooled radial aircraft engines built by the Wright Aeronautical division of Curtiss-Wright. The crankshafts were fitted with gears, which drove a sun gear arrangement. In order to use existing tooling, five Chrysler 250.6 cu in (4.1 L) (bore 3.4375 in or 87 mm, stroke 4.5 in or 114 mm) L-head inline six cylinder engines were arranged around a central shaft, producing a unique 30-cylinder 21-litre (1,253 cu in) engine in a relatively compact but heavy package. The Multibank A57 was born out of the necessity for a rear-mounted tank engine to be developed and produced, in the shortest time possible. ![]() and originally equipped with the “Multibank” engine, the reference of the tank changed post War in the French Army for M4A4 T (T for transformed) because it was motorized with a 9-cylinder “Continental R 975 C 4” radial engine . Evolution of different versions of the M4, the M4A4 is the last version produced during WWII (1942). ![]()
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