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Monday, July 21, 2014

Navy feared frigate's excessive noise made it an easier target

HMCS TorontoThe noise generated by one of Canada’s frigates was so excessive that navy officers worried for a time that it had become more vulnerable to torpedoes and other weapons that home in on sound, according to a military report obtained by the Citizen.

Royal Canadian Navy officials were scrambling last year to deal with the problem just as HMCS Toronto was getting ready to set sail for the Arabian Sea, a potentially high threat area for submarines operated by other nations.

At first, the navy thought that the excessive noise was being generated by stern flaps, a device installed on the Halifax-class frigates to reduce drag and improve fuel efficiency.

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