ON THE ANALYSIS OF THE CIRCLE TEST

The speed reduction in turning has heretofore been expressed by the ratio between diameter and ship length or by coefficient K sub S used in Hovgaard's formula. The author showed in (Part-1) the results of turning tests on actual ships by these expressions applied to various hull forms, deducing K sub S to the ratio between the rudder area and the lateral area under water. In this connection there is a method to calculate the speed reduction from the curve of E.H.P. in turning. This paper shows that the speed reduction in turning may be analyzed not only by the increase in E.H.P. but by the incidental change in propulsive quality and engine character with actual ship data analyzed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/05148499
• Corporate Authors:

  Society of Naval Architects of Japan

  15-16, Toranomon, 1-chome, Minato-ku
  Tokyo,   Japan 
• Authors:
  • Takarada, N
• Publication Date: 1961

Media Info

• Pagination: n.p.
• Serial:
  • Journal of the Society of Naval Architects of Japan
  • Volume: 111
  • ISSN: 0514-8499

Subject/Index Terms

• TRT Terms: Speed control; Traffic speed; Turning radius; Turning traffic
• Uncontrolled Terms: Speed reduction
• Old TRIS Terms: Turning characteristics; Turning circle calculations
• Subject Areas: Marine Transportation; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00323708
• Record Type: Publication
• Source Agency: Stevens Institute of Technology
• Files: TRIS
• Created Date: May 21 1981 12:00AM