This glossary is written for virtual airline and flight simulation use within Virtual Air Canada Airline. It is not intended as a real-world aviation reference.
TOGA
Take-Off/Go-Around
TOGA refers to a thrust rating and the associated thrust lever detent or button used to command maximum certificated thrust from the engines for take-off and go-around manoeuvres. On most modern commercial aircraft, the TOGA thrust rating delivers the highest thrust level available for normal operations and is used when maximum climb performance is required - specifically during the initial take-off roll and when executing a missed approach. Selecting TOGA engages the autothrust system (on Airbus) or sets a reference for full thrust (on Boeing), and simultaneously configures the flight director and autopilot for the initial climb or missed approach profile.
On Airbus fly-by-wire aircraft, pressing the TOGA button initiates the go-around mode, retracts the flight directors to go-around bars, and commands positive pitch guidance. On Boeing aircraft, advancing the thrust levers to the TOGA detent has the equivalent effect. A go-around initiated at low altitude - such as after a rejected landing - requires immediate, aggressive action: full TOGA thrust, positive pitch, and gear and flap retraction on schedule. The maximum thrust provided by TOGA is time-limited - typically five minutes - after which the climb thrust (flex or MCT) rating applies. Sustained use of TOGA thrust beyond this limit can affect engine service intervals.