#rudder  a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes
  supertype:  #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
  part of:  #vertical_tail  the vertical airfoil in the tail assembly of an aircraft
     part of:  #tail_assembly__tail__empennage  the rear part of an aircraft
        part of:  #fuselage  the central body of an airplane that is designed to accommodate the crew and passengers (or cargo)
           part of:  #airplane__aeroplane__plane  an aircraft that has a fixed wing and is powered by propellers or jets; "the flight was delayed due to trouble with the airplane"

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