AN ADAPTIVE AUTOPILOT TO PREVENT LEEWAY

In harbour approaches the problem is to maintain track despite the leeway induced by the wind. This can be done satisfactorily using an autopilot modified so that it has no integral control and a course error gain that depends on the angle of the apparent wind. The paper presents the results of simulations of the motion of a 30,000 dwt tanker which show that autopilot control is able to cope with considerable variations in both wind speed and direction and maintain the desired track. Order from NSFI as No. 22129.

  • Corporate Authors:

    National Maritime Institute, England

    Feltham TW14 0LQ, Middlesex,   England 
  • Authors:
    • Hopkins, M R
    • Lewison, GRG
  • Publication Date: 1980-7

Media Info

  • Features: References;
  • Pagination: 14 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00330547
  • Record Type: Publication
  • Source Agency: Ship Research Institute of Norway
  • Report/Paper Numbers: Rpt. No. R83
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM