Flex thrust is identified by what on the N1 gauges?

Flex thrust is identified by what on the N1 gauges?

• A. Magenta caret and a digital "flex"
• B. Red flag
• C. Blue needle
• D. Green arc

Answer: (A)

Flex thrust is shown on the N1 gauges by a magenta caret and a digital display reading “flex.” The magenta caret marks the selected N1 reference for takeoff, while the digital “flex” confirms that the engine is in flex takeoff mode (assumed-temperature setting) rather than using fixed TOGA thrust. This combination lets you quickly verify you’re operating in flex mode, which is used to save fuel and reduce engine wear while still meeting performance requirements. Other indicators like a red flag, a blue needle, or a green arc relate to different cockpit signals and do not identify flex thrust.

Flex thrust is shown on the N1 gauges by a magenta caret and a digital display reading “flex.” The magenta caret marks the selected N1 reference for takeoff, while the digital “flex” confirms that the engine is in flex takeoff mode (assumed-temperature setting) rather than using fixed TOGA thrust. This combination lets you quickly verify you’re operating in flex mode, which is used to save fuel and reduce engine wear while still meeting performance requirements. Other indicators like a red flag, a blue needle, or a green arc relate to different cockpit signals and do not identify flex thrust.