Aircam Aviation Series №S8: Luftwaffe Colour Schemes and - download pdf or read online

By Martin Windrow

ISBN-10: 0850450330

ISBN-13: 9780850450330

Absolutely illustrated all through with many infrequent BW images all with well-informed captions, plus eight pages of color profile drawings.

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Additional info for Aircam Aviation Series №S8: Luftwaffe Colour Schemes and Markings, 1935-45 Volume 2

Example text

It was on the request of Orville Wright to his friend Robert Hartzell to make propellers that saw the startup of the Hartzell Propeller Company. 630 was the World’s first turboprop transport, which first flew on 29 July 1948. But, what was the World’s first turboprop aircraft to fly? In 1930, Frank Whittle (1907–1996) (later Air Commodore, Sir Frank Whittle) patented his jet engine design with work beginning on the engine in 1937. However, the development of the turboprop engine dates back to 1925 through the work of a UK scientist Dr.

The engine was attached to the righthand engine mount of a Boeing 727-100 test plane and was the first Propfan to become airborne. 35 m) diameter. General Electric also flight-tested a Propfan on a McDonnell Douglas MD-80 between May 1987 and March 1988. This Propfan also had eight scimitar shaped contra-rotating blades, driven by the GE turbine engine with an un-geared, direct drive, unducted fan. This resulted in a greatly improved performance over a conventional jet engine. McDonnell Douglas named their Propfan a UHB (Ultra-high By-pass ratio engine) with scimitar blades.

The advance/diameter ratio, J = Where, V = true air speed N = RPM D = propeller diameter V ND Diagram 6, Advance/diameter Ratio shows the curve for the advance/diameter ratio plotted against efficiency for a family of props with their pitch increasing. The numbers above the curves shows the blade angles for each propeller. The efficiency increases with an increase in the ratio up to a certain limit. At too high a ratio, the angle of attack of the blades exceeds the stalling angle at low forward speeds reducing the thrust available for take-off.

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Aircam Aviation Series №S8: Luftwaffe Colour Schemes and Markings, 1935-45 Volume 2 by Martin Windrow

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