Takeoff/go-around switch

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A takeoff/go-around switch (TO/GA or TOGA; ) is a switch on the autothrottle of modern large aircraft, with two modes: takeoff (TO) and go-around (GA). The active mode is dependent on the phase of flight. Usually, on approach to land, the autopilot is set to approach mode, so pressing the TO/GA switch activates the go-around mode of the autothrottle, which sets thrust to about 90–92% N1; while pressing it again increases go-around thrust to full, 100+% N1. When takeoff is set on the autopilot, the switch activates the autothrottle's takeoff mode. On Boeing aircraft, TO/GA modes are selected by a separate button near the throttle levers; on Airbus aircraft, it is activated by advancing the thrust levers forward to the TO/GA detent.

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