The author contends that double hulls on tankers could have reduced the quantity of oil spilled from tankers during 1988-1989 by 50%. The other 50% resulted from accidents in which laden tankers sank after an explosion or fire, or following an encounter with severe weather. While there is insufficient information for determining whether double hulls could prevent such sinkings, they probably could prevent or minimize sinkings following collisions. The double hulls would protect the cargo tanks and all the bunker tanks. Recommendations on spacing and scantlings are given. Newbuilding construction costs are estimated as being 25% higher than for single-hulled tankers, and transportation costs as being 11% higher. Eight tables accompanying the text are headed, respectively: Summary of tanker spills (1988-1989); Tanker spills caused by overflows, etc. (1988-1989); Spills from tankers sunk at sea (1988- 1989); Tanker spills through bottom of hull (1988-1989); Tanker spills through side of hull (1988-1989); Cargo weight vs hull weight; Newbuilding construction costs; and Effect of double hulls on U.S. import costs.

Media Info

  • Features: References;
  • Pagination: 6p.+discuss.

Subject/Index Terms

Filing Info

  • Accession Number: 00661479
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM