THE ECONOMIC CONSEQUENCE OF SHIP SERVICE SPEED REDUCTION

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:
  • Norwegian Maritime Research
  • Volume: 2
  • Issue Number: 1
  • Publisher: Royal Norwegian Council for Scientific & Indus Res

Subject/Index Terms

• TRT Terms: Antifouling coatings; Cleaning; Docking; Drydock operations; Economic analysis; Hulls
• Old TRIS Terms: Drydocking; Economic analysis (Drydocking); Hull cleaning
• Subject Areas: Economics; Maintenance and Preservation; Marine Transportation; Operations and Traffic Management;

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