Air brake (aeronautics) Aircraft flight control system Aileron Body flaps, a type of high-drag set of aerosurfaces designed for very high angle-of-attack descent of rocket-powered vehicles, particularly used during atmospheric entry of space vehicles. Body flaps are being designed to bleed off as much kinetic and potential energy as possible during a near-vertical descent through the atmosphere.[32][33][34] Circulation control wing High-lift device Leading-edge slat