airbreathing jet engine

The turbojet is the oldest kind of general-purpose airbreathing jet engine.

Commonly aircraft are propelled by airbreathing jet engines.

During the cruise stage of flight the missile will be propelled by a scramjet airbreathing jet engine.

The thrust to weight ratio of rockets is typically far higher than that of airbreathing jet engines.

Gas turbine engines and airbreathing jet engines use the Brayton Cycle.

The turbofan or fanjet is a type of airbreathing jet engine that is widely used for aircraft propulsion.

Airbreathing jet engines are mostly used for powering jet aircraft, but have seen rare other uses such as jet cars.

A ramjet is a form of airbreathing jet engine using the engine's forward motion to compress incoming air, without a rotary compressor.

Airbreathing jet engines are nearly always internal combustion engines that obtain propulsion from the combustion of fuel inside the engine.

Most airbreathing jet engines that are in use are turbofan jet engines which give good efficiency at speeds just below the speed of sound.

A rocket-powered aircraft or rocket plane is an aircraft that uses a rocket for propulsion, sometimes in addition to airbreathing jet engines.

Rocket engines have a slightly different propulsive efficiency () than airbreathing jet engines as the lack of intake air changes the form of the equation.

In common parlance, the term jet engine loosely refers to an internal combustion airbreathing jet engine (a duct engine).

Jet aircraft use airbreathing jet engines which take in air, burn fuel with it in a combustion chamber, and accelerate the exhaust rearwards to provide thrust.

The Brayton cycle is a thermodynamic cycle that describes the workings of the gas turbine engine, the basis of the airbreathing jet engine and others.

Combustion temperatures can be as high as 3500K (5841F) in rockets, far above the melting point of most materials, but normal airbreathing jet engines use rather lower temperatures.

Most people use the term 'jet aircraft' to denote gas turbine based airbreathing jet engines, but rockets and scramjets are both also propelled by jet propulsion.

Airbreathing jet engines are gas turbines optimized to produce thrust from the exhaust gases, or from ducted fans connected to the gas turbines.

Except for scramjet engines, all airbreathing jet engines need subsonic airflow to operate properly, and require a diffuser to prevent supersonic airflow inside the engine.

Some designs for SSTO attempt to use airbreathing jet engines that collect oxidiser and reaction mass from the atmosphere to reduce the take-off weight of the vehicle.

A scramjet (supersonic combustion ramjet) is a variant of a ramjet airbreathing jet engine in which combustion takes place in supersonic airflow.

The earliest attempts at airbreathing jet engines were hybrid designs in which an external power source first compressed air, which was then mixed with fuel and burned for jet thrust.

Liftoff is of two main types: rocket launch (the current conventional method), and non-rocket spacelaunch (where other forms of propulsion are employed, including airbreathing jet engines or other kinds).

An airbreathing jet engine (or ducted jet engine) is a jet engine propelled by a jet of hot exhaust gases formed from air that is drawn into the engine via an inlet duct.

For all airbreathing jet engines the propulsive efficiency (essentially energy efficiency) is highest when the engine emits an exhaust jet at a speed that is the same as, or nearly the same as, the vehicle velocity.