A SMALL-WATERPLANE-AREA-SINGLE-HULL SHIP WITH STABILIZING HYDROFOILS (SWASH): SEAKEEPING CHARACTERISTICS AND CALM WATER PERFORMANCE

Stability, seakeeping and resistance characterization experiments have been conducted on a novel ship (SWASH) which incorporates a single, small waterplane area hull and outrigger surface piercing hydrofoils for stability. Comparisons are provided between pitch and heave transfer functions for SWASH and those of a small waterplane area twin hull (SWATH) and a conventional monohull. Root-mean-square motions in head Sea States 5 and 6 are also compared for these vessels, as well as effective horsepower (EHP) in calm water.

• Corporate Authors:

  David Taylor Naval Ship R&D Center

  Ship Performance Department
  Bethesda, MD  United States  20084
• Authors:
  • Gersten, A
• Publication Date: 1974-11

Media Info

• Pagination: 54 p.

Subject/Index Terms

• TRT Terms: Aerodynamic lift; Drag; Energy consumption; Equipment tests; Hulls; Hydrodynamics; Hydrofoils; Mathematical models; Mechanical stability; Performance tests; Pitch (Dynamics); Seakeeping; Ship motion; SWATH ships; Test procedures; Water waves
• Uncontrolled Terms: Heaving; Model tests; Ship hulls
• Old TRIS Terms: Power prediction; Sea states; Test equipment
• Subject Areas: Energy; Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00090754
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: SPD-599-01
• Files: TRIS
• Created Date: Jun 26 1975 12:00AM