What is the primary purpose of the de-icing process?

• A. To ensure critical surfaces are free of ice, snow, and frost prior to takeoff
• B. To improve cabin comfort
• C. To increase luggage capacity
• D. To reduce fuel consumption

Answer: (A)

De-icing's main aim is to ensure that all critical surfaces are free of ice, snow, and frost before takeoff. Ice on wings, tail, and control surfaces disrupts the smooth flow of air, alters the wing’s shape, and can hide irregularities, which raises stall speed and reduces control effectiveness. By removing these iced deposits, lift is preserved, handling remains predictable, and there’s less risk of ice breaking off into the engines or cockpit during takeoff. It isn’t about passenger comfort, luggage capacity, or fuel use—those are not the direct safety-focused reasons for de-icing.