About AEHS
Gas Turbines
Gas Turbine

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 long-distance transportation.


Gas Turbine Videos

A fellow calling himself "AgentJayZ," who works for the Canadian company S&S Turbine Services Ltd, has posted over 100 high-quality YouTube videos covering all aspects of gas turbines. Please see the extensive index.

SR-71 Propulsion

How Supersonic Inlets Work

by J. Thomas Anderson

NOTICE: Due to abusive robotic downloading by non-members, this article has been moved to the Members Section


SR-71 Propulsion: A Photo Essay by Richard E. Loftis

"These photographs and other related data do not constitute a technical look at the A-12/SR-71 propulsion system, but a view of the beauty and complexity of the most outstanding aeronautic system yet engineered. In most cases each photograph represents a part of the overall system that was hand made, just as any other piece of art. "
- Richard E. Loftis

Part 1: The Airframe
(High-Resolution Images in the Members Section)

Early US Gas Turbines

During World War II, mainstream U.S. aircraft engine manufacturers, such as Allison, Pratt & Whitney and Curtiss-Wright, were not given gas turbine development contracts. The Army Air Corps believed the big engine makers were too busy meeting War production requirements. As a result, other organizations such as Allis-Chalmers, General Electric and Westinghouse took the lead in US gas turbine development. Notably, several US aircraft manufacturers (Lockheed, Northrop) also designed gas turbines of their own during WWII. Of these, only General Electric remains a modern player in the world of aircraft gas turbines. Most of the other efforts have faded into obscurity.

Frank Whittle's W2B Turbojet: United Kingdom versus United States Development

Wright's T35 Turboprop Engine, et al. — the Contest to Power the B-52


A notable exception is that much of the aircraft gas turbine work of Westinghouse was documented in a 1997 Masters Thesis by Paul D. Lagasse. The AHES is pleased to publish Mr. Lagasse's Thesis, and gratefully acknowledges the assistance of Mr. Lagasse and Mr. Paul Christiansen for their efforts in preparing it for publication here.

The Westinghouse Aviation Gas Turbine Division 1950-1960:
A Case Study in the Role of Failure in Technology and Business
(655K PDF)

by Paul D. Lagasse

General Aviation Gas Turbine Engines from Airventure 2010

Photos by Tim Wheat







Rolls-Royce Conway

Rolls-Royce Tyne Mk 22 as used on the Transall C160Z
Engine Construction (4.3M PDF)
Engine Controls and Propellers (3.0M PDF)
C160 Fuel System (3.1M PDF)

Rolls-Royce (Allison)

Rolls Royce Derwent - The Classic Turbo-Jet

The Whittle/Rover W2B and
Rolls-Royce W2B/23 Welland Turbo-Jets

by Peter Berry

SNECMA ATAR 9C as Used in the Mirage III (1.9M PDF)


Gas Turbine Observations

by Charlie Cravens

Compressor Bleed and Power Extraction

Thrust and Power

Blades (Fan, Compressor and Turbine)

Images from the Collection of Paolo Pisani

Images from the Collection of Andrzej


Last Run of the Pratt & Whitney J58


Lycoming Gas Turbines - Textron Lycoming via Ken Collinge



General Electric F110-GE-110 Images


This outstanding aircraft gas turbine site by Jack Mattingly
has a wealth of historical and technical detail, including many images of gas turbines.