Wing features are components of an aircraft's wings that help to control the aircraft's movement. Ailerons, which are seven-letter wing features, are hinged surfaces on the trailing edge of the wings that can be moved independently of each other. When one AILERON is raised, the other is lowered, allowing the aircraft to roll or turn. Flaps, which are four-letter wing features, are also hinged surfaces on the trailing edge of the wings that can be extended downward to increase lift and drag. This allows the aircraft to fly at slower speeds and to land safely.