World Library  
Flag as Inappropriate
Email this Article

Propeller governor

Article Id: WHEBN0017199655
Reproduction Date:

Title: Propeller governor  
Author: World Heritage Encyclopedia
Language: English
Subject: Scimitar propeller, Constant-speed propeller, Aircraft engine starting, Annunciator panel, Auxiliary power unit
Publisher: World Heritage Encyclopedia

Propeller governor

Propeller governor PCU5000, made by Jihostroj a.s. company, fitted to an American Champion aircraft

A propeller governor senses the speed of an aircraft engine and changes the propeller blade angle to maintain a selected RPM regardless of the operational conditions of the aircraft.


In the history of development of aircraft it became apparent that it is necessary to improve performance. One of the influential factors was the propeller design in relation to the most efficient blade angle. The first propellers were fixed pitch and if the propeller blade angle is set to give good take off and climb performance, the propeller would be inefficient in cruising flight because the blade would be at too low an angle. It was apparent, that the blade angle needs to be adjustable.

A constant-speed propeller was needed along with a device that would change the propeller blade angles according to varying flight conditions. Using this system of control an aircraft can obtain an acceptable amount of efficiency during all flight conditions. This device was the propeller governor, or a propeller control unit.

See also


  • Gunston, Bill. Development of Piston Aero Engines. Cambridge, England. Patrick Stephens Limited, 2006. ISBN 0-7509-4478-1
  • For more technical information on the first constant speed propeller governor mechanism invented by Elmer E. Woodward, see U.S. Patent 2,204,639

External links

  • External propeller governor description
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.