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Afterburners are extremely wasteful of fuel, and thus are only fitted to small military aircraft that have a need for short bursts of extra speed (e.g.: [[interceptor]]s). An engine using an afterburner is termed to be in "reheat", while use of full throttle without the afterburner is termed "full military". Some aircraft are now capable of achieving [[supersonic]] speeds without reheat. This is known as "supercruise".
Afterburners are extremely wasteful of fuel, and thus are only fitted to small military aircraft that have a need for short bursts of extra speed (e.g.: [[interceptor]]s). An engine using an afterburner is termed to be in "reheat", while use of full throttle without the afterburner is termed "full military". Some aircraft are now capable of achieving [[supersonic]] speeds without reheat. This is known as "supercruise".
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[[File:SR-71 Blackbird afterburn.jpg||center|thumbnail|301px|SR-71 Blackbird in flight with J58 engines at maximum power.]]
[[File:SR-71 Blackbird afterburn.jpg||center|thumbnail|301px|SR-71 Blackbird in flight with J58 engines at maximum power.]]