PROPELLER RUDDERS FOR LARGE TANKERS

The article briefly reviews the development of ship manoeuvring aids to overcome difficulties arising from the action of propeller forces on conventional rudders, specific reference being made to studies with the Pleuger active rudder. It is submitted that this is not available in large enough sizes to benefit the modern tanker. A description is given of a propeller-rudder combination suitable for a tanker of 280,000 tons dead-weight. Some guidelines are given for the design of the propeller transmission system to minimize torsional and bending stresses in the drive shafts. A distinction is made between "passive" and "active" yawing moments and some data is presented showing their variation with ship speed. The article concludes with some discussion of the application of electroslag welding to the manufacture of hollow axles for right-angle drives.

• Authors:
  • Englesson, G
• Publication Date: 1976-6-18

Media Info

• Pagination: p. 23
• Serial:
  • Svensk Sjofartstidning
  • Issue Number: 25
  • Publisher: Sveriges Redarefoerening

Subject/Index Terms

• TRT Terms: Electroslag welding; Force; Maneuverability; Maneuvering; Propellers; Rudders; Tankers
• Uncontrolled Terms: Thrust vectoring
• Old TRIS Terms: Propeller forces; Propeller rudder interaction; Right angle drives; Rudder forces; Tanker maneuvering
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00153043
• Record Type: Publication
• Source Agency: British Ship Research Association
• Files: TRIS
• Created Date: May 11 1977 12:00AM