Allison XV-1710-1, V-12 Engine
date: label: Date
content: 1933
name: label: Manufacturer
content: Allison Division, General Motors Corporation
notes: label: Physical Description
content: Type: Reciprocating, V-type, 12 cylinders, ethylene- glycol cooled
label: Physical Description
content: Power rating: 559 kW (750 hp) at 2,400 rpm
label: Physical Description
content: Displacement: 28 L (1,710 cu. in.)
label: Physical Description
content: Bore and Stroke: 140 mm (5.5 in) x 152 mm (6 in)
label: Physical Description
content: Weight: 510.3 kg (1,125 lb)
label: Summary
content: The Allison XV-1710-1 (V-1710-A2) was the first V-1710 engine built for the Army Air Corps, following the success of the Navy’s GV-1710-A model. The Air Corps ordered an engineering prototype in March 1932, and after initial testing by Allison, it was delivered for experimental tests to the Air Corps at Wright Field in July 1933, with the first production engine delivered in February 1935. In that same period, Allison became a division of General Motors.
label: Summary
content: The V-1710 was the only U.S. liquid-cooled production engine of World War II. Ultimately, more than 47,000 V-1710s were built in 57 different versions. During World War II, V-1710s powered various models of the Lockheed P-38, Curtiss P-40, Bell P-39 and P-63, and North American P-51 fighter aircraft. Constant development, including use of a turbocharger, increased the rated take-off power to as high as 1,715 kW (2,300 hp) following World War II.
place: label: Country of Origin
content: United States of America
setName: label: See more items in
content: National Air and Space Museum Collection
creditLine: label: Credit Line
content: Transferred from the U.S. Air Force Central Museum
dataSource: label: Data Source
content: National Air and Space Museum
identifier: label: Inventory Number
content: A19600126000
objectType: label: Type
content: PROPULSION-Reciprocating & Rotary
objectRights: label: Restrictions & Rights
content: CC0
physicalDescription: label: Materials
content: Steel, Paint, Aluminum, Copper, Ceramic, Rubber, Brass, Magnesium
label: Dimensions
content: Height 94.1 cm (37.1 in.), Width 77.7 cm (30.6 in.), Depth 238.2 cm (93.75 in.)