PROPULSION AND ITS EFFICIENCY IN ICE

Propulsion of icebreakers and icebreaking vessels has been studied quite extensively for many years. Experience in the Baltic and in the Soviet Arctic during the last 5-10 years has shown that all main problems are now well under control by ship designers. However, there has not been much activity in developing efficiency of propulsion in ice. Helsinki Shipyard has conducted several full-scale trials and model tests to study this question. This paper presents some results of model tests of propellers in open water and ridged ice fields and pure propeller efficiency in ice. Results of model tests of one icebreaker with propellers in nozzles, with conventional propellers, and the pure towing resistance are also discussed.

  • Supplemental Notes:
    • Presented at Ice Tech '81 sponsored by the Eastern Canadian Section of SNAME, 16-19 June 1981. Proceedings price to members $30.00; non-members $45.00.
  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Juurmaa, K
    • Segercrantz, H
  • Publication Date: 1981

Media Info

  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00330880
  • Record Type: Publication
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: May 21 1981 12:00AM