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As much as I repect Whittle for his work I don't believe Ohain violated any patents, he did after-all assist Whittle in his work. Ohain was also abit more futuristic with his designs, as illustrated with the HeS engines.
The worlds first Turbo-Jet aircraft, the He-178:
Perhaps if the RAF had taken some intrest we might have had a jet in service much earlier and perhaps the Germans might had not had time to get theirs?
Sir Frank Whittle was convinced that if he had been given adequate Government backing and the development resources of Rolls-Royce, the RAF "could" have had Meteors in 1942. He was also a firm believer that the Rolls-Royce was "superior in almost every respect to the Junkers Jumo 004."
The Russians agreed with him, and used a Russian version of the RR Nene rather than any German alternative for the Mig 15.
Now there I have to agree Soren but at the same time if you have a superior engine and its not reliable, is it truly superior? Almost a "chicken or the egg" scenario.Thats incorrect bigZ. The Russians used the Whittle design for reliability reasons. The Jumo 004's axial flow design was inherently superior to Whittles centrifugal flow design.
Another reason for using the RR Nene design was for production reasons, as the most advanced German jet engines simply were beyond the capability of the Russian production industry.
Centrifugal compressors, which were used in the first jet engines, are still used on small turbojets and turboshaft engines and as pumps on rocket engines. Modern large turbojet and turbofan engines usually use axial compressors.
Why the change to axial compressors? An average, single-stage, centrifugal compressor can increase the pressure by a factor of 4. A similar single-stage axial compressor increases the pressure by only a factor of 1.2. But it is relatively easy to link together several stages and produce a multistage axial compressor. In the multistage compressor, the pressure is multiplied from row to row (8 stages at 1.2 per stage gives a factor of 4.3). It is much more difficult to produce an efficient multistage centrifugal compressor because the flow has to be ducted back to the axis at each stage. Because the flow is turned perpendicular to the axis, an engine with a centrifugal compressor tends to be wider (greater cross-sectional area) than a corresponding axial. This creates additional undesirable aircraft drag. Centrifugal compressors are also less efficient than axial compressors. For all of these reasons, most high compression jet engines use multi staged axial compressors. But, if only a moderate amount of compression is required, a centrifugal compressor is much simpler to use.
Koolkitty,
The Me-262A-1a was faster than the P-80A, even at its very conservative official figures of 870 km/h at alt. During British speed trials the Me-262 reached speeds of over 900 km/h in level flight.