The term AIRPLANE WING FEATURE refers to two features of an airplane wing: the AILERON (7 letters) and the SLAT (4 letters). The AILERON is a movable part of the wing that controls the roll of the aircraft. It is typically located near the tip of the wing and is used to make the aircraft turn left or right. The SLAT is a movable part of the wing that increases lift at low speeds. It is typically located near the leading edge of the wing and is used to reduce the stall speed of the aircraft. Both the AILERON and the SLAT are important features of an airplane wing that help the aircraft maneuver in the air.