Allison V-1710-33 (V-1710-C15), V-12 Engine


Display Status:

This object is on display in the Boeing Aviation Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Allison V-1710-33 (V-1710-C15), V-12 Engine

Collection Item Summary:

In 1937 the Allison V-1710 became the first American engine to qualify at 1,000 horsepower for the new 150-hour military type test. The V-1710-C was also the first in the “long nose” series that provided a basis for later improved and higher powered versions. Allison designers created the long nose by extending the propeller shaft about 30 centimeters (12 inches) to maximize streamlining.

The Allison V-1710 powered most U.S. Army fighters in World War II, including the Lockheed P-38, Bell P-39 and P-63, Curtiss P-40, and early North American P-51s. The V-1710-C15 (military designation V-1710-33) powered the Curtiss P-40, P-40A, B, and C pursuit aircraft.

Collection Item Long Description:

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum


Norm Gilman

Credit Line

Lent by Allison Division, General Motors Corporation.


Length 250.3 cm (98.54 in.), Width 74 4 cm (29.29 in.), Height 106.4 cm (41.88 in.)

Country of Origin

United States of America



Physical Description

  • Type: Reciprocating, 12 cylinders, V-type, liquid cooled
  • Power rating: 776 kW (1,040 hp) at 2,800 rpm
  • Displacement: 28 L (1,710 cu in.)
  • Bore and Stroke: 140 mm (5.5 in.) x 152 mm (6 in.)
  • Weight (dry): 608 kg (1,340 lb)


PROPULSION-Reciprocating & Rotary

Inventory Number