Which performance limiting note corresponds to Takeoff 1 Fixed Derate?

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Multiple Choice

Which performance limiting note corresponds to Takeoff 1 Fixed Derate?

Takeoff with a fixed derate means you’re applying a specified thrust reduction to meet performance margins, and the system marks this limit with a dedicated note. For the first fixed derate, the note used to indicate that limitation is TO1. That’s why TO1 is the correct match for Takeoff 1 Fixed Derate. The other derate levels (TO2, TO3) would be used if more or different derates were in effect, and BOF is a Balance of Field note tied to runway-length constraints rather than a thrust derate.

Takeoff with a fixed derate means you’re applying a specified thrust reduction to meet performance margins, and the system marks this limit with a dedicated note. For the first fixed derate, the note used to indicate that limitation is TO1. That’s why TO1 is the correct match for Takeoff 1 Fixed Derate. The other derate levels (TO2, TO3) would be used if more or different derates were in effect, and BOF is a Balance of Field note tied to runway-length constraints rather than a thrust derate.

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