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What will be achieved by flying for maximum endurance in the cruise?
  • A
    Maximum payload being carried.
  • B
    Maximum time in the air.
  • C
    Maximum flight distance.
  • D
    Flight crew fatigue being minimised.
Endurance
The only time an airplane will be flown by the pilot for maximum endurance is when the airplane is in a holding pattern over its destination. For instance, when there are long landing delays running out of fuel starts to become a problem. Maximum endurance will occur at minimum fuel flow. In a jet aircraft means minimum thrust and therefore minimum drag, VMD. Minimum fuel flow for a propeller aircraft occurs when power required is minimum, so the speed to fly for endurance is VMP.

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