Wikipedia:WikiProject Aircraft/Engines/Categories

Aero engine articles are categorised inline with the guidance at Categorization.

Engines are usually categorised by type, era (defined by first run date and sorted into decades) and manufacturer. Categories should be kept as specific as possible using sub-categories, for example the Rolls-Royce Trent appears in Category:High-bypass turbofan engines but not Category:Turbofan engines. It also appears in Category:Rolls-Royce aircraft gas turbine engines but not Category:Rolls-Royce.
 * Engines

Engine manufacturers are categorised by nationality and also their trading status, for example the de Havilland Engine Company appears in Category:Defunct aircraft engine manufacturers of the United Kingdom and not Category:Aircraft engine manufacturers of the United Kingdom.
 * Manufacturers

Categories

 * Category:Aircraft engines
 * Category:Aircraft engine task force articles

Article tagging

 * Category:Aircraft engines without specifications
 * Category:Aircraft engine stubs
 * Category:Wikipedia requested images of aircraft engines

Miscellaneous

 * Category:Rocket engines of the United Kingdom

Types of engine

 * Category:Aero-derivative engines
 * Category:Gas turbines
 * Category:Jet engines
 * Category:Motorjet engines
 * Category:Ramjet engines
 * Category:Propfan engines
 * Category:Pulsejet engines
 * Category:Aero-derivative engines
 * Category:Gas turbines
 * Category:Jet engines
 * Category:Motorjet engines
 * Category:Ramjet engines
 * Category:Propfan engines
 * Category:Pulsejet engines