Westinghouse J34

Westinghouse J34

infobox Aircraft
name = J34

caption = J34 on display at the Wright-Patterson Air Force Base Museum
type = Turbojet
manufacturer = Westinghouse Electric Corporation
first flight= 11 January avyear|1947
primary user= U.S. Air Force, U.S. Navy
unit cost=$6700
The J34 was a turbojet engine developed by Westinghouse Electric Corporation in the late 1940s. Essentially an enlarged version of the earlier Westinghouse J30, the J34 produced 3,000 pounds of thrust, twice as much as the J30. Later models produced as much as 4,900 lbs with the addition of an afterburner. It first flew in 1947.

Built in an era of rapidly advancing gas turbine engine technology, the J34 was largely obsolete before it even saw service, and often served as an interim engine. For instance, the Douglas X-3 "Stiletto" was equipped with two J34 engine when the intended Westinghouse J46 engine proved to be unsuitable. The Stiletto was developed to investigate the design features of an aircraft suitable for sustained supersonic speeds. However, equipped with the J34 instead of its intended engines, it was seriously underpowered for this purpose and could not even exceed Mach 1 in level flight.

Developed during the changeover from piston-engined propeller aircraft to jets, the J34 would often be fitted to aircraft as a supplement to other powerplants, as with the P-2 Neptune and Douglas Skyrocket (fitted with radial piston engines and a rocket engine, respectively).


* 11-stage axial turbojet

* 2-stage turbine

* Mass flow: 50-55 lbs/sec

* Pressure ratio: 3.7 - 4.4

Aircraft Powered By the J34

*Douglas X-3 "Stiletto"
*McDonnell XF-85 "Goblin"
*McDonnell XF-88A (x2)
*McDonnell F2H-2 Banshee (x2)
*Lockheed P-2 Neptune (x2, plus x2 Wright R-3350-32W Turbo Compound radials)
*Douglas F3D Skynight
*Convair F2Y SeaDart (Supersonic interceptor seaplane)
*Lockheed XF-90
*Vought F6U Pirate
*Douglas Skyrocket


*J34-WE-17: 3,370 lb (15 kN) thrust (4,900 lb (22 kN) thrust with afterburner)
*J34-WE-22: 3,000 lb (13.3 kN) thrust
*J34-WE-36: 3,400 lb (15 kN) thrust

External links


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