A new concept in the transportation of LNG is presented. Called the DYtam LNG carrier and constructed of high quality concrete-reinforced longitudinally and transversely, the hull is divided longitudinally with the cargo tanks having curved surfaces in both major planes, and being arranged along either side of the centerline ballast and service tanks. Above the tank sections a cambered deck is carried which extends well past the tank centerlines to form a triangular-shaped void space, where the sheer strake would be in a conventional ship. The ship's bottom is formed by a flat shell of 600 mm thick concrete. The outboard curves of the tank shell, and hence the ship's side, are 450 mm thick tapering to 200 mm thick concrete on the inboard sides of the tank. Conservative aspects of the ship's design can be appreciated when it is realized that the total hogging bending moment of 1 million tons m includes a permissible still water bending moment of 300 000 tons m. In a normal operating condition the SWBM is in the order of 164 000 tons m. The proposed vessel is 290.00 m lenghth oa, 44.00 m in the beam, design draft is 11.60 m and the propulsion plant is forseen as steam turbine with an output of 40 000 shp at a speed of 19.5 knots.

  • Availability:
  • Supplemental Notes:
    • Also available from British Ship Research Association, Wallsend Research Station, Wallsend, Northumberland, England.
  • Corporate Authors:

    Engineering, Chemical and Marine Press, Limited

    33-39 Bowling Green Lane
    London EC1P 1AH,   England 
  • Publication Date: 1976-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00156851
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jul 2 1977 12:00AM