#airfoil__control_surface__surface  a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
  supertype:  #device  an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"
  part:  #leading_edge  #trailing_edge
  subtype:  #aileron  an airfoil that controls lateral motion
  subtype:  #elevator  the airfoil on the tailplane of an aircraft that makes it ascend or descend
  subtype:  #flaps__flap__flap  a movable airfoil that is part of an aircraft wing; used to increase lift or drag
     subtype:  #landing_flap__landingflap  a flap on the underside of the wing that is lowered to slow the plane for landing
  subtype:  #horizontal_stabilizer__tailplane  the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged
  subtype:  #rotor_blade__rotorblade__rotary_wing  the long airfoil that rotates to provide the lift that supports a helicopter in the air
  subtype:  #rudder  a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes
  subtype:  #spoiler  a hinged airfoil on the upper surface of an aircraft wing that is raised to reduce lift and increase drag
  subtype:  #spoiler.airfoil  an airfoil mounted on the rear of a car to reduce lift at high speeds
  subtype:  #stabilizer.airfoil  airfoil consisting of a device for stabilizing an aircraft
     subtype:  #horizontal_tail  the horizontal stabilizer and elevator in the tail assembly of an aircraft
     subtype:  #vertical_stabilizer__vertical_fin__tail_fin__tailfin  a stabilizer that is part of the vertical tail structure of an airplane
  subtype:  #vertical_tail  the vertical airfoil in the tail assembly of an aircraft
  subtype:  #wing.airfoil  one of the horizontal airfoils on either side of the fuselage of an airplane

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