DESIGN, CONSTRUCTION, AND OPERATION OF NIAGARA RIVER ICEBREAKERS

This paper describes the design and construction of two small icebreak ers for operation exclusively in the fast-flowing Niagara River above the celebrated falls. Special features of these purpose-built craft-wh ich due to their dangerous operating environment Include many redundan t systems-are presented. Results of maneuvering trials and model tests are given, along with a comparison between hull forms of the two vess els-Ontario Hydro's Niagara Queen II and the William H. Latham, operat ed by the New York Power Authority.