This paper, presented in Hamburg, in Nov. 1977, is part of the 12th Progress Report of the AGSV (the German "Study Group of the Ship Experimental Establishments"). The Author, of the HSVA, gives an account of an investigation carried out to provide initial information on the relationship between a ship's manoeuvring characteristics in ice-free water and those in ice, and on the relevant factors of influence. The investigation included full-scale tests off Spitzbergen, in homogeneous fast ice, with the 1976-built ice-strengthened supply-ship/tug Werdertor, which has twin ducted propellers and twin spade rudders; propulsion power is 2 x 3,478 kW, and a transverse thruster of 7 tonnes static thrust is installed; length b.p. is 61.8 m. The tests in ice were confined to turning manoeuvres; shipboard Decca radar was used in measuring turning-circle diameter. The tests, including the techniques used, are described, and the turning-circle equations and the results of the tests in ice, together with those in ice-free water, are presented and discussed in detail. Order from: BSRA as No. 48,846.

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  • Corporate Authors:

    Seehafen-Verlag Erik Blumenfeld

    Celsiusweg 15, Postfach 1347
    2000 Hamburg 50,   Germany 
  • Authors:
    • Brix, J E
  • Publication Date: 1978-4


  • German

Media Info

  • Features: References;
  • Pagination: 4 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00180045
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Sep 14 1978 12:00AM