The objective of this report is to clarify some of the economic consequences of ship service speed reduction. The methods and principles presented are generally valid, but in this report large tankers are considered. A reduction in the ship service speed is to a great extent caused by roughening and fouling of the underwater hull. A simple (manual) method to find this speed reduction and a method to evaluate the minimum docking interval with respect to treatment of the underwater hull are presented. An extension of the off-hire concept is given. Results are presented in a way that make them almost independent of ship size and freight rate.

  • Corporate Authors:

    Royal Norwegian Council for Scientific & Indus Res

    Radhusgaten 8, Sentrum
    Oslo,   Norway 
  • Authors:
    • Sillerud, B O
  • Publication Date: 1974-5

Media Info

  • Pagination: p. 18-32
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00054885
  • Record Type: Publication
  • Source Agency: Royal Norwegian Council for Scientific & Indus Res
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM