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Old 28th July 2025 | 23:25
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BuzzBox
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Joined: Mar 2002
: ATP+Mil
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From: Moved beyond
If performance is limiting, the A320/21, A330 and A350 all give pilots the option of either packs off or packs on/APU bleed on (ie APU to Pack) for take-off. Neither the FCOM nor the FCTM express a preference for one over the other.

Similarly, the B744, B748 and B777 manuals all have procedures for Packs Off and APU to Pack take-off, with no preference expressed one way or the other.
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