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What are the hazards of ice-accretion? What steps will you take to prevent or reduce ice-accretion? Hazards of ice-accretion: Centre of gravity of the ship is raised with a corresponding reduction in stability. The added weight of ice leads to an increase in displacement and hence to a reduction in freeboard and buoyancy. Heel due to icing only on one side due to beam wind. It can cause radio and radar failures due to the icing of aerials. Visibility from the bridge may also be affected If ice is not removed, there is a great danger of instability and possibly capsizing. To prevent or reduce ice-accretion: Keep away from areas of strong wind and low air temperatures as far as possible. Seek immediate shelter in a harbor or downwind of a land mass to minimize spray. If shelter is not available, then steam downwind to minimize sea spray on the ship's deck and superstructures. (upwind for certain ships) "Ice-phobic" (ice fearing) coatings can be applied. Physical removal of ice using tools such as baseball bats, large wooden mallets, ice scrappers, shovels, spades, picks, etc. Use of chemicals such as Rock Salt (Sodium Chloride), Calcium Chloride, Urea, Ethylene Glycol and other light de-icers including alcohols.