Having originally been known for modified Liberty engines and developing propeller reduction gears, this was the first of Allison’s own engines. In 1937 the Allison V-1710 became the first American engine to qualify at 746 kW (1,000 horsepower) for the new 150-hour military type test, and was the only U.S. liquid-cooled engine production engine of World War II.
The Allison V-1710 powered the majority of U.S. Army fighters during World War II, including the Lockheed P-38, Bell P-39 and P-63, Curtiss P-40, and early models of the North American P-51. The Allison V-1710-143 powered the North American F-82E, F-82F, and F-82G. This 2-stage supercharged version of the engine was the ultimate development of the V-1710. A total of 375 Model G6R engines were produced in the period 1946-47. This artifact, serial number A-074119, was one of the very last V-1710s built (serial number A-074125 was the last V-1710).
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Circa 1945
United States of America
PROPULSION-Reciprocating & Rotary
Allison Division, General Motors Corporation
Type: Reciprocating, V-type, 12 cylinders, supercharged, ethylene glycol-cooled
Power rating: 1,193 kW (1,600 hp) at 3,200 rpm
Displacement: 28 L (1,710 cu in.)
Bore and Stroke: 140 mm (5.5 in) x 152 mm (6 in)
Weight: 723.5 kg (1,595 lb)
3-D: 213.4 × 77.5 × 97.8cm, 723.5kg (7 ft. × 2 ft. 6 1/2 in. × 3 ft. 2 1/2 in., 1595lb.)
Non-Magnetic White Metal (Possibly Alluminum)
Steel
Copper Alloy
Natural Fiber TextilePlastic
Paper
Adhesive
A19600108000
Transferred from the U.S. Air Force Central Museum
National Air and Space Museum
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