This category is for gas turbine engines, not mixed phase (steam) or liquid (hydroelectric) turbines. All turbines are pure rotary systems. In gas turbines, the four stages of operation and combustion (compression, ignition, expansion, exhaust) occur concurrently, in a spatial sequence of different, specialized areas and parts of the engine. This is unlike Otto and Diesel cycle engines, where the four stages of operation occur in a time sequence (strokes).
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Community of home-based gas turbine builders. Includes chat, database and photos.
Wikipedia article on these geared turbofan engines introduced in 1972 commonly used on business jet aircraft.
How Gas Turbine Engines Work
Explains the basics of jet gas turbine engines. Includes background information, images and useful animations. [HowStuffWorks]
The Junkyard Turbojet Engine
Information on designing and building an experimental, homebuilt turbojet engine from junkyard parts. Includes how-to, news, FAQ, links and references.
Wikipedia - Gas Turbine
Free encyclopedia article covers gas turbine technology and applications. Addresses technical and theoretical background, thermodynamic aspects and research.