OPTIMISED RUDDER PROPELLER DESIGN ENSURING MAXIMUM EFFICIENCY

In the thirty years since its introduction, the Schottel rudder propeller has undergone continuing development. This paper reviews the studies and tests carried out over the past ten years to improve the reliability and efficiency of the unit. Much of this research effort has been directed towards model studies of manoeuvring performance, resistance, cavitation, etc. For the investigation of power losses, lubrication problems, etc. a specialised test rig has been developed. This consists of two 700 kW rudder propellers connected together via a hydraulic thrust coupling. As a result of this work, the reliability of the units as well as their hydrodynamic and mechanical efficiency has been improved. The advantages gained as a result of these measures are modest, percentage wise, but the savings in energy costs show the possibility of recovering the installation cost within a period of three years.

• Supplemental Notes:
  • Jahrbuch der Schiffbautechnischen Gesellschaft, 75 <1981>, p.33 (9 pp., 4 graphs, 2 diag., 9 phot.)
• Authors:
  • Lais, S
• Publication Date: 1981

Language

• German

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00684010
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM