DESIGN AND OPERATION OF A HIGHLY MANOEUVRABLE GREAT LAKES SELF-UNLOADER

The motor vessel American Republic is a Great Lakes self-unloading dry bulk carrier designed and built for the carriage of taconite pellets between the pellet terminal in Lorain, Ohio and the Republic Steel Company's docks situated at the head of navigation on the Cuyahoga River in Cleveland, Ohio. In order to navigate safely the Cuyahoga River on a regular basis, the vessel was designed with twin screws, Kort nozzles, four flanking rudders, four steering rudders and bow and stern thrusters to give the necessary manoeuvring characteristics. In addition, a novel pilothouse arrangement was incorporated into the design to give optimum visibility and ship control. The design of the propulsion and steering system is discussed and an evaluation of the vessel's performance is presented. The article includes a comprehensive listing of principal particulars among which are:- Length, o.a. 634ft 10in.; Breadth, moulded 68ft; Depth, moulded 40ft; Draught, design 27ft 6in.; Displacement LT 30,150; Deadweight LT 24,610; Total hold capacity 760,480 cu ft.; Shaft horsepower 7,000; Classification ABS + A1 E Great Lakes & St. Lawrence River Service + AMS + ACC.

  • Supplemental Notes:
    • Marine Technology, 20 <1983>, p. 150 <Apr.> (9 pp., 3 tab., 9 diag., 4 phot.)
  • Authors:
    • Bassett, N L
    • Kline, R G
    • MILLER, R H
  • Publication Date: 1983

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00684588
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM