A steam locomotive that carries its fuel and water containers on the locomotive frames, as opposed to in a separate tender.

plural of tank engine

A rotary internal combustion engine, without pistons, using instead an epitrochoid-shaped housing.

Any engine used to propel an aircraft, including jet engines and rocket engines etc.

plural of reciprocating engine

plural of search engine

plural of diesel engine

A siege engine, a weapon such as a catapult.

plural of military engine

plural of jet engine