14th International Conference on Offshore Mechanics and Arctic Engineering, 18-22 June 1995, Copenhagen, Denmark
A series of tests on a model of ice class fixed pitch propeller of the Canadian Coast Guard's R-Class icebreakers were conducted in the towing tank at Memorial University of Newfoundland. Performance of the propeller was assessed in both uniform flow and in blocked flow behind a nearby simulated ice piece for two blockage configurations and a range of clearances between the block and the propeller blades. Measurements of thrust and torque were made over a range of speeds. The results help to isolate the separate effects of the extreme wake within which the propeller operates, and of proximity of the ice piece. The work forms part of a broader research effort examining the performance of propellers when blocked with ice.