#airship__dirigible  a steerable self-propelled airship
  supertype:  #lighter-than-air_craft  aircraft supported by its own buoyancy
  part:  #air_gondola
  subtype:  #barrage_balloon__barrageballoon  an elongated tethered balloon or blimp with cables or net suspended from it to deter enemy planes that are flying low
     subtype:  #kite_balloon  a barrage balloon with lobes at one end that keep it headed into the wind
  subtype:  #blimp__sausage_balloon__sausageballoon__sausage  a small nonrigid airship used for observation or as a barrage balloon
  subtype:  #zeppelin__Graf_Zeppelin  a large rigid dirigible designed to carry passengers or bombs

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