Which factor is NOT listed as driving alternate fuel planning and reserves?

Which factor is NOT listed as driving alternate fuel planning and reserves?

• A. Weather
• B. Driver's schedule
• C. Expected flying time
• D. Alternate airport requirements

Answer: (B)

Alternate fuel planning and reserves are driven by how weather can affect landing availability, the planned flight’s fuel burn (expected flying time), and the requirements of the chosen alternate airport. Weather dictates whether you may need to divert, so you reserve enough fuel to reach an alternate if the destination becomes unavailable. Longer expected flying time means more fuel will be burned, so you need larger reserves. The alternate airport requirements establish the minimum fuel needed to reach and, if necessary, hold at the alternate. The factor that does not drive this planning is the driver's schedule; crew timing affects duty limits but not the amount of fuel required for an alternate diversion.

Alternate fuel planning and reserves are driven by how weather can affect landing availability, the planned flight’s fuel burn (expected flying time), and the requirements of the chosen alternate airport. Weather dictates whether you may need to divert, so you reserve enough fuel to reach an alternate if the destination becomes unavailable. Longer expected flying time means more fuel will be burned, so you need larger reserves. The alternate airport requirements establish the minimum fuel needed to reach and, if necessary, hold at the alternate. The factor that does not drive this planning is the driver's schedule; crew timing affects duty limits but not the amount of fuel required for an alternate diversion.