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Pratt & Whitney R-1340 Wasp

Aircraft engine family by Pratt & Whitney

Field	Value
name	R-1340 Wasp
image	File:Pratt and Whitney Wasp.jpg
caption	The first Pratt & Whitney Wasp
engine_type	Radial engine
manufacturer	Pratt & Whitney
national_origin	United States
first_run	29 December 1925
number_built	34,966
major_applications
produced	1926–present
developed_into	Pratt & Whitney R-985 Wasp Junior

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 (22 L); bore and stroke were both 5.75 in (146 mm). 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: 450 hp, 600 hp ;R-1340-8: 425 hp ;R-1340-9: 450 hp, 525 hp ;R-1340-16: 550 hp ;R-1340-17: 525 hp ;R-1340-19: 600 hp ;R-1340-19F: 600 hp ;R-1340-21G: 550 hp ;R-1340-22: 550 hp ;R-1340-23: 575 hp ;R-1340-30: 550 hp ;R-1340-31: 550 hp ;R-1340-33: 600 hp ;R-1340-48: 600 hp ;R-1340-49: 600 hp ;R-1340-AN1: 550 hp, 600 hp ;R-1340-AN2: 550 hp, 3:2 geared prop shaft ;R-1340-B: 450 hp ;R-1340-D: 500 hp ;R-1340-S1D1:525 hp ;R-1340-S1H1-G:550 hp, 600 hp ;R-1340-S3H1:600 hp ;R-1340-T1D1:520 hp

Applications

Agusta-Bell AB.102
Air Tractor AT-301
Air Tractor AT-401
Ayres Thrush
Bach Air Yacht
Boeing 247
Boeing F3B
Boeing F4B
Boeing Model 40A
Boeing P-12
Boeing P-26 Peashooter
Boeing P-29
CAC Ceres
CAC Wirraway
Curtiss F7C Seahawk
Curtiss Falcon
Curtiss O-52
Curtiss P-6S Hawk
Curtiss SOC Seagull
de Havilland Canada DHC-3 Otter
Douglas Dolphin
Fairchild FB-3
Fokker F.10
Fokker F.32
Ford Trimotor
Gee Bee QED
Gee Bee R 1/2 Super Sportster
Gee Bee R-1
Gee Bee R-2 Super Sportster
Gee Bee YW
Gee Bee Z
Goodyear K-class blimp
Grumman Ag Cat
Grumman Mallard
Howard DGA-6
Ireland N-2C Neptune
Junkers Ju 52
Junkers W 34
Kaman HH-43 Huskie
Knoll Aircraft Company KN-3
Lockheed Model 8 Sirius
Lockheed Model 9 Orion
Lockheed Model 10-C & 10-E Electra
Lockheed Vega 5
Lockheed XC-35
Loening OL-8
Noorduyn Norseman
North American BC-1
North American T-6/SNJ Texan/Harvard
Northrop Alpha
Northrop C-19 Alpha
Scottish Aviation Twin Pioneer
Sikorsky H-19
Sikorsky S-38
Soko 522
Thomas-Morse XP-13A Viper
TNCA MTW-1
Vought O2U Corsair
Wedell-Williams Model 45
Westland Whirlwind (helicopter)

Engines on display

There are a Wasp A and three Wasp C's on display at the New England Air Museum, Bradley International Airport, Windsor Locks, CT.

Specifications (R-1340-S1H1-G)

Pratt & Whitney R-1340 installed in a [[T-6 Texan

and start a new, fully formatted line with -- |power/weight=0.65 hp/lb

References

Notes

Bibliography

Bridgman, Leonard. Jane's All the World's Aircraft 1945-46. Hammersmith, London: HarperCollinsPublishers (1994 reprint).
Gunston, Bill. World Encyclopedia of Aero Engines: From the Pioneers to the Present Day. 5th edition, Stroud, UK: Sutton, 2006.
White, Graham. Allied Aircraft Piston Engines of World War II: History and Development of Frontline Aircraft Piston Engines Produced by Great Britain and the United States During World War II. Warrendale, Pennsylvania: SAE International, 1995.

References

[http://www.pw.utc.com/vgn-ext-templating/v/index.jsp?vgnextoid=a47bf3b8f77fb010VgnVCM1000000881000aRCRD Pratt&Whitney R-1340 page] Retrieved: 25 October 2008
[http://www.hartfordbusiness.com/article/20160201/NEWS01/160209992 "Pratt’s first engine gets historic designation" from Hartford Business Journal, published February 1st ] Retrieved: 7 April 2016
(August 1929). "Knoll KN-3". Western Flying.
http://neam.org/index.php?option=com_content&view=article&layout=edit&id=1119 "Pratt & whitney R-1340 Wasp A"
http://neam.org/index.php?option=com_content&view=article&layout=edit&id=1113 "Pratt & Whitney R-1340 Wasp C Cutaway"
http://neam.org/index.php?option=com_content&view=article&layout=edit&id=1120 "Pratt & Whitney R-1340-0 Wasp C"
http://neam.org/index.php?option=com_content&view=article&layout=edit&id=1122 "Pratt & Whitney Roscoe Turner R-1340 Wasp Engine"
Bridgman 1994, p. 81d.

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