HYDRODYNAMIC CONSIDERATIONS IN THE APPLICATION OF FEATHERING PROPELLERS

There are many vessels that do not always make use of their entire propulsion installation. Examples are double-ended ferries that use only half their installations at a time, depending upon the direction of crossing, and sailing vessels that use auxiliary propellers only as needed. For such ships, the use of feathering propellers may be attractive. In this paper, several hydrodynamic aspects of the use of feathering propellers are reviewed and discussed, including single-shaft operation of twin-screw ships; drag penalties due to inactive feathering or trailing propellers, including secondary effects of asymmetric propulsion; propeller design considerations; and controllable pitch propellers in off- design conditions.

• Supplemental Notes:
  • Conference paper
• Authors:
  • Allema, J H
  • Holtrop, J
• Conference:
  • Lips Propeller Symposium, 7th
  • Location: Noordwijk aan Zee, The Netherlands
  • Date: 1989-9-21 to 1989-9-22
• Publication Date: 0

Media Info

• Features: References;
• Pagination: 12p., incl. discuss.

Subject/Index Terms

• TRT Terms: Controllable pitch propellers; Hydrodynamics
• Old TRIS Terms: Feathering propellers; Part powering
• Subject Areas: Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00660182
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM