SUBMERGED AIR CUSHION (SAC) VESSEL - THE APPLICATION OF THE AIR CUSHION PRINCIPLE TO VERY LARGE VESSELS - THE CASE FOR FURTHER RESEARCH

The object of the submerged air cushion is to decrease viscous resistance by introducing a captured air cushion beneath the hull of the vessel. It is applicable to very large vessels such as bulk oil and ore carriers with large block coefficient and large flat bottom area. Model tests show that it may be possible to reduce the total resistance of a fully laden 200,000 tons deadweight tanker by approximately 17% at service speed, and by extrapolation of the results so far obtained, a reduction of 25% on vessels of 400,000 tons deadweight may be possible at fully laden draft and a reduction of 35% in the ballast condition; an increase in service speed would be available for a specific power output.

• Supplemental Notes:
  • International Hovering Craft, Hydrofoil and Adv Transit Syst Conf, Brighton, Sussex, England, May 13-16, 1974.
• Corporate Authors:

  Kalerghi Publications

  51 Welbeck Street
  London W1,   England 
• Authors:
  • Grundy, J W
• Conference:
  • International Hovering Craft, Hydrofoil and Adv Transit Syst Conf, Brighton, Sussex, England, May 13-16, 1974.
• Publication Date: 1974

Media Info

• Features: References;
• Pagination: p. 121-138

Subject/Index Terms

• TRT Terms: Air cushion vehicles; Fluid resistance; Hulls; Mechanical resistance; Viscosity
• Uncontrolled Terms: Hull resistance
• Old TRIS Terms: Air cushion technology; Submerged air cushions; Viscous resistance
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00135397
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jul 13 1976 12:00AM