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As sometimes happens, events overtook this and the engine was a perfect match to boost the performance of the P2V Neptune patrol aircraft. The J34 first ran in 1947 and was used to power several early jet fighters.ĭespite its simplicity and reliability, it was realised in 1955 that the J34 had reached the end of its usefulness and it was decided to cease production. It had a higher compression ratio and was more efficient, however still only comparable to British engines. Whilst there was a J32 engine, the next major type was the J34, basically a scaled up J30 with more compression stages. Interestingly, the J30 ran on the then common aviation gasoline. It was however only the first design and in fact available British engines with a centrifugal compressor were more efficient. At the time of its first run, it was only the second axial flow engine to successfully run outside Germany, quite a feat. The first engine Westinghouse built was designated the J30 and first ran in March 1943 and flew under a Corsair fighter in January 1944. In an axial flow jet engine the turbine blades progressively compress the air through multiple fan stages (11 Stages in the J34) and with each stage the fan blades get progressively smaller, more numerous and change pitch to efficiently compress the air before it enters the combustion chamber at the rear of the engine. Germany had also settled on an axial design for its engines however the lack of materials resulted in poor reliability (about 10 hrs running time) compared with the then British engines (about 300 hours). This was a more advanced technology as it required more precise manufacturing and high temperature metals. Right from the start, they settled on an axial flow design rather than that adopted by Whittle in his engines. At this time, the only jet engine in the United States was the first Whittle engine with a centrifugal compressor. In late 1941 the US Navy asked Westinghouse Electric Corporation to commence designing a jet engine for future navy fighters. The Westinghouse J34 is a simple, robust engine that traces its history to the very beginning of jet engine development in the United States. Wright R-3350 Radial Piston Aero Engine.Rolls Royce RB211 Turbofan Jet Aero Engine.

Armstrong Siddeley Cheetah Piston Aero Engine.

Boeing 747-438 “VH-OJA, City of Canberra”.

Douglas DC-3 (aka C-47, Dakota, Skytrain, Gooney Bird).

What Types of Events Can Be Hosted at HARS?.

Contact Covington Aircraft today to set up your repair or maintenance visit, or learn more about our services. If you need assistance with your R985, we can help. The R985 Wasp Junior has certainly earned its place in aviation history, and continue to be used today. Whether you need repairs, maintenance, or an overhaul, it’s important to know more about your engine options. Many of the modern designs being released today are built on the foundation of the R985, and in many instances an engine with a different name will still be very close in design to this classic. While it was used throughout World War II, today the R985 has been used in agricultural aircraft, bush planes, and small personal aircraft. That means that if desired, aircraft owners could swap from one to the other. One of the more desirable things about the engine was that it and the larger R-1340 actually have the same mounting dimension. The power is derived from a centrifugal supercharger, and the first design delivered about 300 horsepower although later models increased that level and by the time the C-series was released horsepower was increased to 600hp for takeoff and 525 for sustained flight. The design uses a nine cylinder radial that is air cooled. More than 39,000 of the engines were built, and decades later many are still in use. The R985 Wasp Junior is probably one the most popular engines Pratt and Whitney released, and has found its way into civilian as well as military aircraft. Over the years it has found its way into numerous aircraft including: The Wasp Junior was designed as a smaller version of the R-1340, and was designed for mid to small sized aircraft. It’s also considered to be a classic, and the first run of the R985 started back in 1929.

This radial engine is versatile, delivers good power, and is very reliable. There are numerous engines in the industry, but one of the most popular is the R985 from Pratt and Whitney. Your aircraft’s engine is the most important part of its construction, and at Covington Aircraft we feel that taking the time to understand just a little more about it is a good idea whether you’re a pilot, a fleet manager, a mechanic, or just an owner of a single plane.