#vertical_tail  the vertical airfoil in the tail assembly of an aircraft
  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:  #tail_assembly
  part:  #rudder  a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes
  part:  #vertical_stabilizer__vertical_fin__tail_fin__tailfin  a stabilizer that is part of the vertical tail structure of an airplane

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