SAIL-ASSIST ALTERNATIVES FOR AUXILIARY PROPULSION

"Sail-assist" is a term coined by Wind Ship Company, USA, to describe the portion of the wind propulsion spectrum in which most of the ship's propulsive power is generated by the engine driving a screw propeller, and sail power is used as an auxiliary, to save fuel or increase speed. The economics of operating in various regions of the spectrum were investigated by Wind Ship in a 1981 report prepared for the US Maritime Administration <MARAD>. The findings of this report encouraged Wind Ship to continue research and development in the field of sail-assist. Under contract to Ceres Hellenic Shipping Enterprises, Wind Ship has designed two 3,000 sq.ft rigs to provide direct comparative results between the unstayed cat rig and the wing sail. The cat rig was installed aboard the Mini Lace, a 3,100dwt general cargo ship and an engineering study was carried out to predict annual fuel savings. Development of the wing sail has also proceeded with the construction of a one-third linear scale model of the 3,000 sq. ft design and preliminary results are encouraging.

• Supplemental Notes:
  • Proceedings of Motor Ship Fifth International Marine Propulsion Conference, London, 3-4 Mar. 1983, p.269 (14 pp., 2 tab., 5 graphs, 3 diag., 2 phot.)
• Authors:
  • Bergeson, L
• Conference:
  • International Marine Propulsion Conference, 5th
  • Location: London , United Kingdom
  • Date: 1983-3-3 to 1983-3-4
• Publication Date: 1983

Language

• English

Subject/Index Terms

• Old TRIS Terms: Mini lace
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00685117
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM