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The Aircraft Engine Historical Society is a non-profit educational and historical society, open to the public, which fosters an appreciation of the people, art, and science associated with aircraft engine development, manufacture, and use.

Fifth Annual AEHS Convention
Sacramento, California July 9-12, 2008
If you are an air race fan this is a convention NOT to miss.
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Feature

Feature019

Gas Turbines

Jet engines, since their appearance in World War II, have literally revolutionized almost all aspects of aviation. Because of improvements in jet engines, aircraft continually fly faster, further, and carry more payload. The reliability and longevity of jet engines has made air travel one of the safest and least expensive means of transportation.

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Torque Meter

Journal of the Aircraft Engine Historical Society

Published quarterly, Torque Meter contains articles on all types of aircraft engines, both new and old. Topics include engines, the aircraft they powered with emphasis on the engine installation, propellers, accessories, cooling, operation, and maintenance. Rare, never before published photographs grace its pages. - more -

Individual Torque Meter
Back Issues Are Available!

Help Needed:
Bristol Centaurus

An Australian group is overhauling a Type 18 Bristol Centaurus engine. The intention is to return this engine back to Airworthiness, and then be reinstalled back into the Sea Fury that is also being overhauled to Airworthy standard.

Whilst we do have some parts and information for this job, we would like to know more! If anyone has information, or knows of someone that may be familiar with the machining process involved in the manufacture of the sleeves, and even the machines used for this job, it would be greatly received and very much appreciated.

We do have some information (metallurgy content , tolerances) but we would like some of the finer details of the machining process, and the machines they were produced on. If anyone has this information, please pass it on via

Thank you.
David Bienvenu

Rolls-Royce Merlin Book

The Rolls-Royce Heritage Trust is putting together a book about the Merlin engine. We would like to include a list of surviving engines, and to this end any help would be appreciated.

All that is required is the mark and serial number of the engine, be it airworthy, on display, in a museum aircraft or in private ownership. Engines must be complete or substantially complete - no wrecks. All marks are eligible for engines made in the UK, USA and Australia, the exception being the Mustang Packard V-1650s, which are too numerous (but we would like to include those built by Continental). Any such knowledge about Merlins other than those in USA/Canada would also be helpful.

If anyone would like to provide me with such details they can e-mail me through

Dave Birch, Rolls-Royce Heritage Trust

In order to conserve bandwidth, many of the images and references provided by the Aircraft Engine Historical Society require the use of Portable Data Format (.pdf) and Tagged Image Format (.tif) file readers. Readers for these file formats can be downloaded free of charge by clicking on the icons below.

We Need Your Help!

Please help the Aircraft Engine Historical Society grow. We need members (click here to join) and we need material for publication in the journal, Torque Meter and on this web site. If you wish to contribute material, you can find submission guidelines here. Please feel free to contact us about your article ideas.

Webmasters: Please feel free to link to this page of the AEHS site. Other pages may change and should not be linked.

Change History

04-03-2008 - Armstrong-Siddeley

04-02-2008 - Review of El motor de la aviación (De la "A" a la "Z" Edición "super" 2008

03-24-2008 - New V-12 Firing Orders

03-19-2008 - 2007 AEHS Convention Presentation - Engine Preservation/Conservation

03-12-2008 - Additions to Propellers Section

03-10-2008 - Additions to Diesels Section

02-24-2008 - Commonwealth Aircraft Corporation

02-17-2008 - Musee de L’Air et Espace, Le Bourget, SNECMA Museum

02-14-2008 - Links Page Updated

01-28-2008 - Book Reviews