SUB-ICE TESTS PROMISING FOR EXTENDING SHIPPING SEASON

During the eight-week test program conducted in Michigan with an experimental device, the performance of SUB-ICE (Submerged Ice Cracking Engine) was about equal to theoretical predictions. The test device was a metal barge about 12 ft. wide and 16 ft. long equipped with a single combustion chamber having a volume of about five cu. ft. Pressures inside the chamber reached 400 to 600 psi before release of the combustion gases to form a high-pressure bubble underneath the ice. Working in ice about one-foot thick, the device broke about 100 sq. ft. of ice with each firing.

• Corporate Authors:

  World Trade Publications, Incorporated

  P.O. Box 20810
  Long Beach, CA  United States 
• Publication Date: 1972-8

Media Info

• Pagination: p. 9-11
• Serial:
  • World Dredging and Marine Construction
  • Volume: 8
  • Issue Number: 9
  • Publisher: World Trade Publications Company

Subject/Index Terms

• TRT Terms: Icebreaking; Lake ice; Seasons
• Geographic Terms: Great Lakes
• Subject Areas: Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00044377
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 11 1973 12:00AM