Pratt & Whitney R-1340 Wasp
The Pratt & Whitney R-1340 Wasp is an aircraft engine of the reciprocating type that was widely used in American aircraft from the 1920s onward. It was the Pratt & Whitney aircraft company's first engine, and the first of the famed Wasp series. It was a single-row, nine-cylinder, air-cooled, radial design, and displaced 1,344 cubic inches ; bore and stroke were both 5.75 in. A total of 34,966 engines were produced.
As well as numerous types of fixed-wing aircraft, it was used to power helicopters, the Agusta-Bell AB.102 and the Sikorsky H-19, and a class of airship, the K-class blimp.
In 2016, it received designation as a Historic Engineering Landmark from the American Society of Mechanical Engineers.Variants
Note: R for Radial and 1340 for 1340 cubic inch displacement.
;R-1340-7:,
;R-1340-8:
;R-1340-9:,
;R-1340-16:
;R-1340-17:
;R-1340-19:
;R-1340-19F:
;R-1340-21G:
;R-1340-22:
;R-1340-23:
;R-1340-30:
;R-1340-31:
;R-1340-33:
;R-1340-48:
;R-1340-49:
;R-1340-AN1:,
;R-1340-AN2:, 3:2 geared prop shaft
;R-1340-B:
;R-1340-D:
;R-1340-S1D1:
;R-1340-S1H1-G:,
;R-1340-S3H1:
;R-1340-T1D1:Applications
The engines can still be overhauled as well as serviced. The largest R-1340 overhaul facility in the world is the Radial Engine Division of Covington Aircraft in Okmulgee, Oklahoma.Specifications (R-1340-S1H1-G)
