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Commercial Pilot Licence (CPAER) – Canada · Question

What is the effect of frost on an aircraft's wings?

Frost on the wings disrupts the smooth airflow, significantly increasing drag and decreasing lift. This leads to a higher stall speed and reduced aerodynamic ef

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Question: What is the effect of frost on an aircraft's wings?

Answer options:

  • Decreases drag and improves lift
  • Increases lift and decreases stall speed ✅ Increases stall speed and decreases lift
  • Has no significant effect if the layer is thin

Correct answer: Increases stall speed and decreases lift

Explanation: Frost on the wings disrupts the smooth airflow, significantly increasing drag and decreasing lift. This leads to a higher stall speed and reduced aerodynamic efficiency, making it very dangerous for takeoff.

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