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Free PSTAR practice Wake Turbulence

Wake turbulence caused by a departing large aeroplane begins

  1. Abefore rotation.
  2. Bwith rotation.Correct answer
  3. Cafter becoming airborne.
  4. Dwith full power application.

Why this is the answer

Per TC AIM-AIR (Wake Turbulence / Vortex Characteristics), vortex generation starts at rotation, when the wing begins producing lift, and ends at touchdown. Before rotation the wing is not yet developing the lift that sheds the vortices.

Reference

TC AIM-AIR – Wake Turbulence / Vortex Characteristics

Question reproduced verbatim from Transport Canada’s PSTAR Study and Reference Guide (TP 11919E). The answer key is Transport Canada’s; the explanation is ours.

A study aid — not a substitute for the official guide, the CARs, or your instructor.

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