The paper applies ice resistance technology to the calculation of design powers and icebreaking performance. There are five main sections: 1. Operating Environment and Ship Classes, reference is made to the Canadian Government Arctic Shipping Pollution Prevention Regulations and the Ship Classes Zones and Seasons as these items are connected with the environment. A description is also given of conditions during the severe ice season in zone 13 when an experimental voyage was in progress. 2. Ice Resistance, Inertial Ice Breaking Capability (Penetration on Stopping), Thrust and Power, an exact formula is developed for the penetration on stopping. This is related to ship speed and a minimum value proposed for design purposes. The present status of ice resistance technology is described in this section. 3. Minimum Design Power Calculations for Various Ships, the results developed in section 2 are applied to assess the icebreaking capabilities of the vessels. 4. Arctic Class Numbers, the icebreaking capabilities calculated in section 3 are related to the ship Classes. 5. Concluding Remarks, here a summary is made of the main points brought out in the other sections and suggestions are made of various formulae as design guides. The need for continued model and full scale research and for operations data is indicated.

  • Supplemental Notes:
    • Presented at the Ice Tech Symposium, Montreal, Canada, April 9-11, 1975.
  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Mathews, S T
  • Publication Date: 1975-4

Media Info

  • Features: References;
  • Pagination: 12 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00095321
  • Record Type: Publication
  • Source Agency: Society of Naval Architects and Marine Engineers
  • Files: TRIS
  • Created Date: May 29 1975 12:00AM