Pratt & Whitney R-1830 Twin Wasp

R-1830 Twin Wasp
R-1830 on display at the Imperial War Museum Duxford
Type Radial engine
National origin United States
Manufacturer Pratt & Whitney
First run 1932
Major applications Consolidated B-24 Liberator
Douglas C-47 Skytrain
Grumman F4F Wildcat
Consolidated PBY Catalina
Number built 173,618 [1]
Variants Pratt & Whitney R-2000 Twin Wasp

The Pratt & Whitney R-1830 Twin Wasp was an American aircraft engine widely used in the 1930s and 1940s. Produced by Pratt & Whitney, it was a two-row, 14-cylinder, air-cooled radial design. It displaced 1,830 cu in (30.0 L) and its bore and stroke were both 5.5 in (140 mm). A total of 173,618 R-1830 engines were built,[1] and from their use in two of the most-produced aircraft ever built, the four-engined B-24 heavy bomber and twin-engined DC-3 transport, more Twin Wasps may have been built than any other aviation piston engine in history. A "bored-out" version (to a 5.75 inch/146 mm cylinder bore) with a slightly higher power rating and other slight changes in detail design was produced as the R-2000.

Variants

Applications

R-1830 mounted on the left wing of an ex-military Douglas C-47
RAF Dakota's Twin Wasp out for servicing

Engines on display

Specifications (R-1830-S1C-G)

Pratt & Whitney R-1830 "Twin Wasp" (sectioned)

Data from [4]

General characteristics

Components

Performance

See also

Related development

Comparable engines
Related lists

References

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