#seaplane__hydroplane  an airplane that can land on or take off from water; "the designer of marine aircraft demonstrated his newest hydroplane"
  supertype:  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"
  subtype:  floatplane__pontoon_plane__pontoonplane  a seaplane equipped with pontoons for landing or taking off from water
  subtype:  flying_boat  a large seaplane that floats on the full rather than on pontoons

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