COMPLETELY SUBMERGED PROPELLERS FOR HIGH SPEED CRAFT

Various completely submerged propulsors for high speed craft are compared with regard to efficiency and cavitation properties. The comparisons are based on experience from commercial and systematic model tests and calculations, and cover conventional propellers, super-cavitating and contra-rotating propellers with different shafting and gear arrangements. The influence of blade trailing edge cupping on the performance of conventional propellers is addressed, as well as the possibilities of predicting results. Force- reducing cavitation and its influence on the choice of propeller dimensions and the shaft inclination and its influence on efficiency and cavitation and different measures to reduce the disadvantages of this condition are discussed.

• Supplemental Notes:
  • Fast '93, 2nd Intl Conf on Fast Sea Transportation; 13-16 Dec 1993; Yokohama, Japan. Sponsored by Min Transport, Japan & Sasakawa Foundation. Procs. Pubs by Soc Naval Architects of Japan, 1993, ISBN 4-930966-00-0. Vol 1, p 733 [19 p, 18 ref, 14 fig]
• Authors:
  • BJARNE, E
• Publication Date: 1993

Language

• English

Subject/Index Terms

• TRT Terms: Engine efficiency; Propellers; Propulsion
• Uncontrolled Terms: High speed vessels
• Old TRIS Terms: Propeller efficiency; Propulsive efficiency
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00709546
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM