Answer: elevon

AnswerCrossword Clue
ELEVONFlap on a plane's wing
ELEVONHinged flap on an airplane
ELEVONControl surface on a plane's wing
ELEVONAircraft control surface
elevona type of wing-flap
elevoncontrol surface functioning both as an elevator and as an aileron
elevonan airplane control surface that combines the functions of elevator and aileron