← Aviation GlossaryAerodynamics

Aileron

Definition

Hinged surfaces on the trailing edge of each wing near the wingtips that control roll. Ailerons work differentially: when one goes up, the other goes down, creating asymmetric lift to bank the aircraft.

Related Terms

Test your knowledge

Think you understand Aileron? Challenge yourself with practice questions covering aerodynamics and all other ATPL subjects.

Start a Practice Quiz

Or browse all >1,300 questions by subject