Jet+boat+group+6

= Welcome to team ALA's page. = =media type="custom" key="19016844"HOW A JET ENGINE= A **jet engine** is a type of engine that uses a "jet" of air for thrust. The basis of most jet engines is the same. Air is drawn in at the front and compressed. Fuel is then added and the resulting mixture is combusted. The combustion greatly increases the volume of the gases which are then exhausted out of the rear of the engine. The efficiency of the process, like any heat engine, is defined by the ratio of the compressed air's volume to the exhaust volume. The advantage of the jet engine is its efficiency at high speeds (especially supersonic) and high altitudes. On slower aircraft, a propeller (powered by a gas turbine), commonly known as a turboprop is more common

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