Wright R-975 Whirlwind
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The Wright R-975 Whirlwind was a series of nine-cylinder, air-cooled radial aircraft engines built by the Wright Aeronautical division of Curtiss-Wright. These engines had a displacement of about 975
A Continental-built R-975 from a Sherman tank
A Grant tank R-975 engine being removed by Royal Army Ordnance Corps mechanics
M3 Lee
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The M3 Lee, officially Medium Tank, M3, was an American medium tank used during World War II. The turret was produced in two different forms, one for US needs and one modified to British requirements
Wright R-975 Whirlwind
…chose Continental Motors to build the R-975 under license as the engine for its M2 medium tanks. Subsequently, the same engine was selected for the M3 Lee medium tank, the M4 Sherman medium tank, the Canadian Ram tank (which used the M3 chassis), the M7 Priest self-propelled gun, the M18 Hellcat tank…
Medium Tank, M3, Fort Knox, June 1942
The armor plate on the M3 was too heavy for welding and had to be riveted in position.
Crew exiting a "disabled" M3 tank during training maneuvers held at Camp Polk in February 1943
British Grant (left) and Lee (right) at El Alamein (in the Egyptian Western Desert) 1942, showing differences between the British turret and the original design of the M3