A NEW METHOD OF TURNING CIRCLE TEST AND ITS FULL SCALE EXPERIMENTS

The new method of this report is to be named PAL-test, because it employs several Parallel Alignment Lines, in navigational words, transit lines. If we measure only two series of data, namely time points of transits with a stop-watch, and ship's headings by a gyro-compass, while an actual ship is under stationary turnings across PALs, we can determine turning characteristics: angular velocity, turning radius, tangent speed, drift angle, pivoting point, and reach, advance, or transfer, tactical diameter of the ship, which are necessary to calculate the ship's path. Full-size experiments were carried out with a 360 GT training ship, and the usefulness of the method seems to be verified. Parallel quay lines along waterways in the Port of Kobe, instead of PALs were employed, therefore, the experiments were partly unsatisfactory due to other ship's disturbances. The author proposes some plan of PALs to be constructed for public use.

• 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 

  Society of Naval Architects of Japan

  15-16, Toranomon, 1-chome, Minato-ku
  Tokyo,   Japan 
• Authors:
  • HIROTA, M
• Publication Date: 1971

Media Info

• Pagination: n.p.
• Serial:
  • Journal of the Society of Naval Architects of Japan
  • Volume: 129
  • ISSN: 0514-8499

Subject/Index Terms

• TRT Terms: Prototype tests; Turning radius; Turning traffic
• Old TRIS Terms: Turning characteristics; Turning circle calculations
• Subject Areas: Education and Training; Marine Transportation; Terminals and Facilities; Vehicles and Equipment;

Filing Info

• Accession Number: 00323604
• Record Type: Publication
• Source Agency: Stevens Institute of Technology
• Files: TRIS
• Created Date: Mar 12 1981 12:00AM