flight operationsFAA-published question bank (Private Pilot, 2008)
Wingtip vortices are created only when an aircraft is
A
operating at high airspeeds.
B
heavily loaded.
C
developing lift.✓ Correct Answer
Explanation
AIM 7-4-2 explains that wingtip vortices are a by-product of lift: the pressure difference between the lower and upper wing surfaces makes air roll around the wingtips. They exist whenever the wing is developing lift, from rotation to touchdown, not only at high speed or heavy weight (which only change their strength).
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