PERFORMANCE OF A HIGH LENGTH-TO-BEAM RATIO SES MODEL EQUIPPED WITH BAG/FINGER BOW SEALS IN CALM WATER AND IRREGULAR WAVES

Experiments were conducted on Carriage III at the David W. Taylor Naval Ship Research and Development Center to determine the effect of various two-dimensional bag/finger bow seals on the performance of a surface effect ship model having a length-to-beam ratio of 5.2. The 1/39.36-scale model was tested at full-scale speeds up to 10 knots, over an approximate weight range from 5600 to 7000 long tons, in calm water and seas scaled through States 3, 5, and 6. The primary variables examined for optimum model performance at any given speed were longitudinal center of gravity and airflow rate. Complete data are presented in digital form, and typical data are plotted for some of the more significant results. In both calm water and waves, the relative performace of the bow seals tested was very similar. However, the drag of certain bag/finger seals was considerably lower than that obtained with the same surface effect ship model previously tested with a two-dimensional bag/planer bow seal, particularly in the higher sea states.

  • Supplemental Notes:
    • Distribution limited to U.S. government agencies only; Test and evaluation; June 1978. Others requests for this document must be refered to Head, Surface Effect Ships Project Office (PMS-304).
  • Corporate Authors:

    David Taylor Naval Ship R&D Center

    Aviation and Surface Effects Department
    Bethesda, MD  United States  20084
  • Authors:
    • Krouse, J R
    • Wares, R N
    • Walker, R L
  • Publication Date: 1978-6

Media Info

  • Pagination: 232 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00184183
  • Record Type: Publication
  • Source Agency: Naval Sea Systems Command
  • Report/Paper Numbers: DTNRDC/ASED-78/01 Final Rpt.
  • Files: TRIS
  • Created Date: Dec 12 1978 12:00AM