#helicopter__chopper__whirlybird__eggbeater  an aircraft without wings that obtains its lift from the rotation of overhead blades
  supertype:  #heavier-than-air_craft  a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it
  part:  #blade.rotating_mechanism  #landing_skids  #rotor
  subtype:  #cargo_helicopter__cargohelicopter  a helicopter that carries cargo
  subtype:  #shuttle_helicopter__shuttlehelicopter  a helicopter that shuttles back and forth
  subtype:  #single-rotor_helicopter  a helicopter having a single rotor
  subtype:  #skyhook.helicopter  helicopter carrying a reel of steel cable that can be used to lift and transport heavy objects

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