#tail_assembly__tail__empennage  the rear part of an aircraft
  supertype:  #rear.side__back  the side that goes last or is not normally seen; "he wrote the date on the back of the photograph"
  part of:  #fuselage
  part:  #horizontal_tail  the horizontal stabilizer and elevator in the tail assembly of an aircraft
     part:  #elevator  the airfoil on the tailplane of an aircraft that makes it ascend or descend
     part:  #horizontal_stabilizer__tailplane  the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged
  part:  #stabilizer.airfoil  airfoil consisting of a device for stabilizing an aircraft
  part:  #vertical_tail  the vertical airfoil in the tail assembly of an aircraft
     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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