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Controllable-Pitch Propeller

Published online by Cambridge University Press:  28 July 2016

W. R. Turnbull
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Extract

Confusion has arisen regarding just what is meant by adjustable variablepitch and controllable-pitch propellers, and the matter should Be more clearly defined in the following way:—Fixed-pitch propellers to apply to both (a) the ordinary fixed-pitch propeller, made up with the hub and blades integral, and the material the same throughout, and (b) the detachable-blade or ground-adjustable type that will usually have the hub and blades of different materials, and in which the blades will be clamped in the hubs on the ground to an angle that is assumed, usually by experiment, to give the best general or some specially desired performance results.

Type
Research Article
Information
The Aeronautical Journal , Volume 35 , Issue 243 , March 1931 , pp. 231 - 244
Copyright
Copyright © Royal Aeronautical Society 1931

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References

* See British Advisory Committee for Aeronautics Reports and Memoranda No. 577.

* See Journal of the Royal Aeronautical Society, July, 1928, p. 525.

† See Journal of the Royal Aeronautical Society, July, 1928. p. 539.

‡ This early composite propeller is now exhibited at the Science Museum, South Kensington.

* During 1930 the Curtiss Company has built propellers with this control for 225 h.p., 450 h.p. and 600 h.p. engines.