The historical development of small waterplane area twin-hull ships is briefly reviewed. The principle advantages of SWATH-type ships with respect to seakindliness and reduction of wave making resistance are discussed. Considerations for hull form optimization leading to improved seakindliness are presented. Special problems in the analytical prediction of ship motion and ship resistance for SWATH/FPS ships are pointed out. The inherent problem of reduced static stability is treated by introduction of the "flared pod strut" concept, a hull form of rapidly increasing waterplane area and GM above a certain waterline. Resulting design possibilities are illustrated for a 66 ft LOA passenger excursion vessel for Hawaiian waters. Finally other applications for relatively small vessels (less than 800 ton) are enumerated and in part illustrated.

  • Supplemental Notes:
    • Paper presented 9 January 1980 to the Hawaii Section, SNAME.
  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Seidl, L H
    • Wilkie, L J
    • Loui, SCH
  • Publication Date: 1980

Media Info

  • Features: References;
  • Pagination: v.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00316616
  • Record Type: Publication
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Sep 16 1980 12:00AM