In the early 1980s, the Combatant Craft Engineering Department began to evaluate a systematic series of propellers representing those available in the commercial market. The primary goal of the program was to generate "open-water" equivalent thrust and torque data from full-scale trials to improve propeller selection techniques for small craft and small ships, particularly at high speeds. The first phase of the program investigated three-bladed propellers with systematic variations in pitch ratio as well as propeller blade "cupping." Cupping has been a long-practiced but ill-defined art for fine-tuning propeller performance. The second phase, in 1987, expanded the series to include four-bladed propellers. In addition, the propulsion system of the test craft has been changed to achieve higher speeds and therefore lower cavitation numbers.

  • Availability:
  • Supplemental Notes:
    • Journal article
  • Authors:
    • Denny, S B
    • Puckette, L T
    • Hubble, E N
  • Publication Date: 1989-7

Media Info

  • Features: References;
  • Pagination: 19p., incl. discuss.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00657811
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM