: a movable airfoil designed to change the attitude of an aircraft
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An onboard computer constantly adjusts the foil angles to hold a smooth ride even in choppy conditions using the same basic principle as the control surfaces on a fighter jet.—Omar Kardoudi
april 09, New Atlas, 9 Apr. 2026 This unit links the guidance computer to the missile’s control surfaces, enabling precise maneuvering in flight.—Aamir Khollam, Interesting Engineering, 9 Apr. 2026 This process used to require a $1,000 hardware control surface and a professional digital audio workstation program.—Jamie Lendino, PC Magazine, 31 Mar. 2026 All four corners of the airplane and flight control surfaces have been identified in the wreckage and the debris field.—Anna Lazarus Caplan, PEOPLE, 19 Dec. 2025 See All Example Sentences for control surface