TOGA thrust maximum time with all engines operating?

TOGA thrust maximum time with all engines operating?

• A. 3 Minutes
• B. 5 Minutes
• C. 7 Minutes
• D. 9 Minutes

Answer: (B)

TOGA thrust is the maximum takeoff/go-around power used for rapid acceleration or a go-around, but it isn’t meant to be used for long periods. With all engines operating, engineers set a maximum TOGA duration of five minutes to protect the engines from overheating and to keep turbine temperatures (ITT/EGT) within safe limits. Staying at TOGA beyond that window increases the risk of thermal damage or protective shutdowns, so pilots reduce thrust to a climb or other approved setting after about five minutes. The other listed times would exceed or fall short of the engine’s established thermal protections for continuous TOGA operation, which is why five minutes is the correct limit.

TOGA thrust is the maximum takeoff/go-around power used for rapid acceleration or a go-around, but it isn’t meant to be used for long periods. With all engines operating, engineers set a maximum TOGA duration of five minutes to protect the engines from overheating and to keep turbine temperatures (ITT/EGT) within safe limits. Staying at TOGA beyond that window increases the risk of thermal damage or protective shutdowns, so pilots reduce thrust to a climb or other approved setting after about five minutes. The other listed times would exceed or fall short of the engine’s established thermal protections for continuous TOGA operation, which is why five minutes is the correct limit.