TUG DESIGN AND DEVELOPMENT

After a general discussion on the characteristics required in modern ship-handling tugs, including those which handle large floating bodies such as drilling-rigs, the Author (of Schottel-Nederland B.V.) examines how these requirements can be met, in particular with the aid of cycloidal propellers and rudder-propellers. These devices can be installed in the forebody, a position which reduces the chance of girting and has other advantages. The advantages of tractor tugs (tugs with cycloidal propellers or rudder-propellers in this forward position) are then discussed more fully, with particular reference to tugs with Schottel rudder-propellers. In Hamburg, three tug-owners operate, or have on order, 15 Schottel tractor-tugs, with bollard pulls ranging from 27 to 35 tons. Order from: BSRA as No. 47,634.

• Supplemental Notes:
  • Presented at the Conference on Shipbuilding, Plymouth, November 1977.
• Corporate Authors:

  Nautical Institute

  Alderman's House, Alderman's Walk
  London EC2M 3UU,   England 
• Authors:
  • Bussemaker, O
• Publication Date: 1977

Media Info

• Features: References;
• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Cycloidal propellers; Propellers; Rudders; Ship pilotage; Tugboats; Vehicle design
• Uncontrolled Terms: Ship design
• Old TRIS Terms: Propeller design
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00173649
• Record Type: Publication
• Source Agency: British Ship Research Association
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Apr 26 1978 12:00AM