Aircraft Basic Definitions Aircraft: A machine that can fly, such as an airplane or helicopter.Aerodynamics: The study of how air moves around objects, especially aircraft.Aileron: A hinged surface on the wing that controls roll movement.Altitude: The height of an aircraft above the ground or sea level.Airfoil: A shape designed to produce lift when air flows over it.Attitude: The orientation of an aircraft in relation to the horizon.Chord Line: A straight line connecting the leading and trailing...