Evolution of different versions of the M4, the M4A4 is the last version produced during WWII (1942). Manufactured by Chrysler Corp. and originally equipped with the \u201cMultibank\u201d 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 \u201cContinental R 975\u00a0 C 4\u201d radial engine\u00a0.<\/p>\r\n\r\n\r\n\r\n
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.\u00a0 In order to use existing tooling, five Chrysler 250.6\u00a0cu\u00a0in (4.1\u00a0L) (bore 3.4375\u00a0in or 87\u00a0mm, stroke 4.5\u00a0in or 114\u00a0mm) L-head inline six cylinder engines were arranged around a central shaft, producing a unique 30-cylinder 21-litre (1,253\u00a0cu\u00a0in) engine in a relatively compact but heavy package. The crankshafts were fitted with gears, which drove a sun gear arrangement.<\/p>\r\n\r\n\r\n\r\n
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.\u00a0 During World War II, Continental Motors built the R-975 under license as a powerplant for Allied tanks and other armored vehicles.<\/p>\r\n\r\n\r\n\r\n
This Sherman M4A4 was built in January 1943.\u00a0Its serial number is 18059, so its registration number is\u00a03018365<\/strong>. (Our second Sherman (Champaubert) is identical but was built in February 1943, serial number 18505). 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. There was no M4A4 in the French 2nd Armored Division. We did not find the name of this tank so we don\u2019t know its story. But we can still figure out the outlines:<\/p>\r\n\r\n\r\n\r\n January 1943 \u2013 built in Arsenal Tank in Detroit<\/p>\r\n\r\n\r\n\r\n February 1943 \u2013 preparation for shipment overseas as a marking that we found on the front proves it)<\/p>\r\n\r\n\r\n\r\n July \u2013 September 1943 \u2013 receipt by the French Army, either in Casablanca or in Algiers and start of the training<\/p>\r\n\r\n\r\n\r\n 15th August 1944 or 9th September 1944 \u2013 landing near Cogolin in the Saint-Tropez gulf.<\/p>\r\n\r\n\r\n\r\n It was never hit or destroyed during the war and was modernized after war by the French Army to be re-engined with a radial 9 cylinder Continental R-975. It was at the Bourges base with the number 130 when the association got it and brought it in Issy-les-Moulineaux in 1993.<\/p>\r\n\r\n\r\n\r\n <\/p>\r\n\r\n\r\n\r\n <\/p>\r\n\r\n\r\n\r\n Engine : originally Multibank Chrysler A57\/425Hp 30 cylinders currently Continental R-975 C4 400 hp at 2,400 rpm<\/p>\r\n\r\n\r\n\r\n Engine power : 400 hp at 2,400 rpm<\/p>\r\n\r\n\r\n\r\n Armor : upper and lower front : 2.0\u2019\u2019 ; rear : 1.5\u2019\u2019 ; sides : 1.5\u2019\u2019 ; gun shield : 3.0\u2019\u2019.<\/p>\r\n\r\n\r\n\r\n Combat weight : 66,800 lbs, 30,300 kg<\/p>\r\n\r\n\r\n\r\n Length without gun : 230\u2019\u2019 Width : 16.56\u2019\u2019 Height over turret hatch : 108\u2019\u2019<\/p>\r\n\r\n\r\n\r\n Fuel capacity : 175 gal<\/p>\r\n\r\n\r\n\r\n Cruising range : 120 Mi \/roads<\/p>\r\n\r\n\r\n\r\n Speed : 21 mph sustained<\/p>\r\n\r\n\r\n\r\n Armament : 75mm Gun M3 90 rounds (8 ready) \u2013 .50cal M2HB MG Flexible in turret AA mount \u2013 .30cal M1919A4 MG Coaxial to 75mm gun \u2013 .30cal M1919A4 MG Ball mount in right bow<\/p>\r\n\r\n\r\n\r\n Crew : 5 Commander in turret right, rear Gunner in turret right front, Loader in turret left rear, Driver in hull left front, Assistant driver in hull right front<\/p>\r\n\r\n\r\n\r\n Manufacturers : American Locomotive Co., Baldwin Locomotive Works, Detroit Tank Arsenal, Federal Machine and Welder Co., Fisher Tank Arsenal, Ford Motor Company, Lima Locomotive Works, Pacific Car and Foundry Company, Pressed Steel Car Company, Pullman-Standard Car Company.<\/p>\r\n\r\n\r\n\r\n Number produced (all models) : roughly 50,000<\/p>\r\n\r\n\r\n\r\n\n\t\t\tTechnical data<\/h2>\r\n\r\n\r\n\r\n