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acronym for Extended-range Twin-engine Operations Performance Standards—a special part of flight rules for one-engine-inoperative flight conditions. The...

and drive a piston, which turns a crankshaft. Unlike internal combustion engines, a reaction engine (such as a jet engine) produces thrust by expelling...

A jet engine is a type of reaction engine, discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this...

A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure...

level editor. The "engine" terminology is akin to the term "software engine" used more widely in the software industry. Game engine can also refer to the...

reinforcements to the engine block for improved rigidity which in turn yields greater reliability. The M275 V12 Bi-Turbo engine was modified with the...

engaged gear, which in turn provides a certain amount of engine braking (viscous losses to the engine oil and air pumped through the engine and friction losses...

A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft...

A flooded engine is an internal combustion engine that has been fed an excessively rich air-fuel mixture that cannot be ignited. This is caused by the...

Saab H engine is a redesign of the Saab B engine, which in turn was based on the Triumph Slant-4 engine. Despite the name it is not an H engine or horizontally...

A Stirling engine is a heat engine that is operated by the cyclic expansion and contraction of air or other gas (the working fluid) by exposing it to...

The term Immelmann turn, named after German World War I Eindecker fighter ace Leutnant Max Immelmann, refers to two different aircraft maneuvers. In World...

barring engine (also called barring motor) is a small engine that forms part of the installation of a large engine, and is used to turn the main engine to...

Anderson turn (also known as a single turn) is a manoeuvre commonly used to bring a ship or boat with engines back to a point it previously passed through...

The rotary engine is an early type of internal combustion engine, usually designed with an odd number of cylinders per row in a radial configuration....

the engines are reset to point straight down the axis of the rocket again. This small steering maneuver is the only time during an ideal gravity turn ascent...

An internal combustion engine (ICE or IC engine) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion...

unique feature of some J-family engine models is Honda's Variable Cylinder Management (VCM) system. Initially, the system turns off one bank of cylinders under...

cargo. In single-engine aircraft, it will usually contain an engine as well, although in some amphibious aircraft the single engine is mounted on a pylon...

condition in which an engine is allowed or forced to turn beyond its design limit. The consequences of running an engine too fast vary by engine type and model...