RAM WING SURFACE EFFECT BOAT

The development of an efficient, stable, self-trimming ram wing vehicle for operation over water is described. It has long been recognized that low aspect ratio (and, therefore, structurally efficient) wings have very high lift over drag ratios when operated in close proximity of a surface. An apparent static pitch and heave instability has prevented the design of practical ram wing vehicles until recently. This paper describes the design, wind tunnel testing and radio controlled model testing of a two man ram-wing boat, which (at full scale) would have a gross weight of 1500 pounds, cruise at 70 miles per hour over one foot waves and require thirty horsepower.

  • Supplemental Notes:
    • Presented at AIAA/SNAME/USN Advanced Marine Vehicles Meeting, Annapolis, Maryland, July 17-19, 1972
  • Corporate Authors:

    American Institute of Aeronautics and Astronautics

    1290 Avenue of the Americas
    New York, NY  USA  10019
  • Authors:
    • Gallington, R W
  • Publication Date: 1972-7

Media Info

  • Features: Figures; References;
  • Pagination: 9 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00035184
  • Record Type: Publication
  • Source Agency: American Institute of Aeronautics and Astronautics
  • Report/Paper Numbers: 72-601
  • Files: TRIS
  • Created Date: Oct 27 1972 12:00AM