ENGINEERING OF POWER BOAT PROPELLERS

A rational analytical/numerical formulation, founded on first principles, has been assembled for the design and analysis of cavitating power boat propellers. The procedure is outlined in general terms, with the central elements and approximations explained. The focus of the paper is on applying this engineering procedure in investigating an issue in the large sport fishing boat industry that has perplexed the designers and manufacturers of propellers for these boats. This has to do with the selection of propellers size (diameter and blade are) and gearing for best performance. Some boat builders prefer smaller, high RPM propellers, while others, producing very similar boats, prefer larger, slower turning designs. The issue centres around the detrimental (or beneficial) effects of differing levels of blade cavitation. The designs of the two competing types are developed in the paper for the same boat, and then back-analyzed at off-design conditions in an attempt to understand the driving elements for the alternative selection practices.

  • Supplemental Notes:
    • Propellers/Shafting '94 Symposium; 20-21 Sept 1994; Virginia Beach, VA, USA. Sponsored and Publ by SNAME, USA. Pprs. Ppr no 12 [16 p, 6 ref, 3 tab, 19 fig]
  • Authors:
    • Vorus, W S
    • Mitchell, K W
  • Publication Date: 1994

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00717704
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 4 1996 12:00AM