Which system is used to anti-ice the wings?

Which system is used to anti-ice the wings?

• A. Wing Thermal Anti-Icing System
• B. Engine Cowlings
• C. Inlet Guide Vanes
• D. Wing anti-ice by electrical

Answer: (A)

Ice on the wing leading edge disrupts airflow and can reduce lift, so protecting that area is essential. The wing thermal anti-icing system heats the wing’s leading edge to keep it above freezing, preventing ice from forming. It works by routing hot bleed air from the engines through channels in the leading edge, delivering direct heat where ice would start. This approach directly addresses the site of ice formation on the wing. Other options don’t serve the same purpose: protecting engine nacelles or engine components doesn’t prevent ice on the wing, and while electrical wing anti-ice exists on some designs, the typical system described here uses heat from bleed air rather than electrical heating.

Ice on the wing leading edge disrupts airflow and can reduce lift, so protecting that area is essential. The wing thermal anti-icing system heats the wing’s leading edge to keep it above freezing, preventing ice from forming. It works by routing hot bleed air from the engines through channels in the leading edge, delivering direct heat where ice would start. This approach directly addresses the site of ice formation on the wing.

Other options don’t serve the same purpose: protecting engine nacelles or engine components doesn’t prevent ice on the wing, and while electrical wing anti-ice exists on some designs, the typical system described here uses heat from bleed air rather than electrical heating.