Pratt & Whitney R-1830 Twin Wasp

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R-1830 Twin Wasp
R-1830 IWM.JPG
R-1830 on display at the Imperial War Museum Duxford
Type Radial engine
National originUnited States
Manufacturer Pratt & Whitney
First run1932
Major applications Consolidated B-24 Liberator
Douglas C-47 Skytrain
Douglas DC-3
Grumman F4F Wildcat
Consolidated PBY Catalina
Douglas TBD Devastator
Short Sunderland
Vickers Wellington
Number built173,618 [1]
Variants Pratt & Whitney R-2000 Twin Wasp

The Pratt & Whitney R-1830 Twin Wasp is an American air-cooled radial aircraft engine. It displaces 1,830 cu in (30.0 L) and its bore and stroke are both 5.5 in (140 mm). The design traces its history to 1929 experiments at Pratt & Whitney on twin-row designs. Production began in 1932 and it was widely used during the 1930s.

Contents

It was selected as the power plant for both the four-engined Consolidated B-24 Liberator heavy bomber and the twin-engined Douglas DC-3 transport, two of the most-produced aircraft. The production run of 173,618 R-1830 examples [1] makes it the most-produced aviation engine in history.

A further developed version, the R-2000, was produced starting in 1942. The R-2000 was "bored-out" to 5.75 in (146 mm) and had a number of other minor changes to improve fuel economy and allow it to run at higher power ratings on lower-octane fuel. The primary user of the R-2000 was the Douglas DC-4.

Mostly retired today, the R-1830 is still used on Douglas DC-3 and various museum aircraft and warbirds seen at airshows. It is not manufactured anymore, but spares are still available and there is still a market for second-hand engines and parts.

Variants

Applications

R-1830 mounted on the left wing of an ex-military Douglas C-47 P&W1830onDak.JPG
R-1830 mounted on the left wing of an ex-military Douglas C-47
RAF Dakota's Twin Wasp out for servicing P&W Twin Wasp.jpg
RAF Dakota's Twin Wasp out for servicing

Engines on display

Specifications (R-1830-S1C-G)

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

Data from [5] [6]

General characteristics

Components

Performance

See also

Related development

Comparable engines

Related lists

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References

Notes

  1. 1 2 - Archived (Nov. 11, 2013) manufacturer's product page, R-1830 Retrieved: 7 February 2019
  2. New England Air Museum Exhibit page R-1830-86 Twin Wasp Retrieved: 2 November 2013
  3. Collection: Pratt & Whitney Twin Wasp R-1830-92 Radial Engine Retrieved: 3 December 2014
  4. "Arizona Commemorative Air Force Museum | Flying Tours | AZCAF".
  5. Tsygulev (1939). Aviacionnye motory voennykh vozdushnykh sil inostrannykh gosudarstv (Авиационные моторы военных воздушных сил иностранных государств) (in Russian). Moscow: Gosudarstvennoe voennoe izdatelstvo Narkomata Oborony Soyuza SSR. Archived from the original on 24 March 2009.
  6. "FAA TCDS A-669".

Bibliography