Major classification society surveys occur every four years. The extent of such surveys vary with ship's age. Intermediate, relatively superficial surveys are made more or less annually and routine shipyard M & R is carried out on the same basis. Consequently, there is a periodicity in the extent and cost of M & R in addition to the increasing trend related to the ship's age. The analyses indicate that total M & R costs may easily double in the first ten to twelve years of a ship's life. How much impact will this have on economic life of ships is not easily answered, but the influence may not be as great as one might at first suppose. Secondly, the data are uncorrected for inflation and that much of the apparent upward cost trend is therefore illusory. Be that as it may, ship economists must not overlook these trends when assessing optimal ship life or ship maintenance policies.

  • Corporate Authors:

    University of Michigan, Ann Arbor

    Department of Naval Architects and Marine Engineers
    Ann Arbor, MI  United States  48109
  • Authors:
    • Hiramoto, F
  • Publication Date: 1972-8

Media Info

  • Pagination: 15 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00072889
  • Record Type: Publication
  • Source Agency: University of Michigan, Ann Arbor
  • Report/Paper Numbers: No. 131
  • Files: TRIS
  • Created Date: Jan 9 1975 12:00AM