THE SURFACE EFFECT CATAMARAN - PROGRESS IN CONCEPT ASSESSMENT

The surface effect catamaran incorporates twin, high length-to-beam ratio cushions supporting a low length-to-beam platform. The performance characteristics of the resulting vehicle, i.e. the resistance and head sea motions, are equivalent to a higher length-to-beam surface effect ship. The high lateral stability which results from the widely spaced hulls and cushions of the surface effect catamaran provides several advantages not inherent in conventional surface effect ship configurations. These advantages are manifested by cross-structure height and reduced structural loads without reduction in static or dynamic roll stability for an 800 ton ship the widely spaced cushions provide a capability of controlling off-head sea types of motions and the virtual elimination of green water over the deck up through Sea State 6. Model tests have validated cushionborne and hullborne resistance computer programmes. Head sea motions tests have justified the use of high cross-structure height to minimise high slam types of structural loads. Preliminary design and model tests indicate the potential for the surface effect catamaran to operate as an open ocean ship in smaller sizes than had previously been thought possible. In addition, its planform and large volume provides payload capabilities equivalent to those of much larger ships.

  • Supplemental Notes:
    • Nav. Engrs J., 95 <1983>, p.301 <May> (11 pp., 8 ref., 16 graphs, 5 diag.)
  • Authors:
    • Wilson, F W
    • Viars, P R
    • Adams, J D
  • Publication Date: 1983

Language

  • English

Subject/Index Terms

  • Subject Areas: Marine Transportation;

Filing Info

  • Accession Number: 00685162
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM