SQUAT OF FULL SHIPS IN SHALLOW WATER

The problem of sinkage and trim while underway in shallow water (squat) is discussed and its accurate assessment for the large ships of today is shown to be important. Some results of experiments to measure the squat of full-form ship models are presented and discussed and a semi-empirical theory is developed which predicts model results with reasonable accuracy. Full-scale measurements of squat have been obtained on a number of ships. The method by which this has been accomplished is described and some results are presented. These in turn are compared with model and theoretical predictions and the measure of agreement obtained is encouraging bearing in mind the overall accuracy of the measurements.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03060209
• Corporate Authors:

  Royal Institution of Naval Architects

  10 Upper Belgrave Street
  ,   United States 
• Authors:
  • Dand, I W
  • Ferguson, A M
• Publication Date: 1973-10

Media Info

• Pagination: p. 237-255
• Serial:
  • Naval Architect
  • Issue Number: 4
  • ISSN: 0306-0209

Subject/Index Terms

• TRT Terms: Navigation; Ship motion
• Uncontrolled Terms: Sinkage; Squat
• Old TRIS Terms: Model testing; Shallow water effects
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00053958
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 7 1974 12:00AM