Operational Procedureseasy#1063
In a crosswind, wake vortices are most hazardous when the wind is:
A
Strong and gusty
B
Light crosswind of about 3-5 knots
CorrectC
Calm
D
Strong headwind
Explanation
A light crosswind of 3-5 knots can keep the upwind vortex over the runway while the downwind vortex moves away, creating an asymmetric hazard.
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