Recent Developments of the Mechanism of the Hydraulic Variable‐Pitch Aircraft Propeller

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Publication date: 1 September 1950

Abstract

After briefly outlining the main features of the variable‐pitch propeller, this paper proceeds to describe the development of the piston‐engined hydraulically operated propeller as a brake, both in the air and on the ground. Examples are given of the magnitude of the braking effort of a propeller when windmilling under controlled conditions and when in reverse pitch under power. The advent of the gas turbine, originally intended as a means of jet propulsion, opened up a new field of application for the variable‐pitch propeller and this application with its attendant problems and their solution is discussed. Three types of gas‐turbine power plant, together with the appropriate propeller arrangements are reviewed. These arc: (I) the direct‐connected turbine; (2) the compound‐compressor turbine; and (3) the free‐propeller turbine.

Citation

(1950), "Recent Developments of the Mechanism of the Hydraulic Variable‐Pitch Aircraft Propeller", Aircraft Engineering and Aerospace Technology, Vol. 22 No. 9, pp. 264-272. https://doi.org/10.1108/eb031943

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Publisher

:

MCB UP Ltd

Copyright © 1950, MCB UP Limited

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