Pratt & Whitney R-2800-39 Double Wasp

Pratt & Whitney R-2800-39 Double Wasp aircraft engine at the New England Air Museum


Type:   14-cylinder, 2-row, supercharged, air-cooled, radial, piston
Displacement:   2,804.5 cu. in.
Weight:   2,360 lbs.
Power Output:   1,850 to 2,600 hp depending on model
NEAM Id:   4
Location:   Military Hangar

Gift of Edmund L. Robinson

A further devdelopment of the Wasp family of engines, the Double Wasp's improvements included strengthening, water injection for takeoff and turbo-supercharging. Variants produces from 1,850 hp up to 2,600 hp. First run in 1937, first flown in 1940 and manufactured until 1960 with 125,344 units produced. Various versions were used to power many of the important aircraft during and after World War II. These included among others:

The Museum's 1,850 hp “A” series powered a Martin B-26A Marauder medium bomber.

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36 Perimeter Rd., Windsor Locks, CT, 06096