| 31. | Like most corvettes, " Fredericton " was installed with a Type 123A ASDIC detection system.
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| 32. | Like most corvettes, " Timmins " was installed with a Type 123A ASDIC detection system.
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| 33. | In 1955 she was disarmed for service at Portland for use as the ASDIC trials and training ship.
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| 34. | At the start of World War II, British ASDIC technology was transferred for free to the United States.
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| 35. | She was fitted with an ASDIC set to detect submarines by reflections from sound waves beamed into the water.
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| 36. | Lonsdale took an evasive course, and used the Asdic to identify when the trawlers were stopping to listen.
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| 37. | She was in reserve at the Nore in 1919, but was modified to conduct radio and Asdic trials.
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| 38. | Picked up on ASDIC by " Walker ", she was depth-charged and severely damaged.
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| 39. | It may help with your search to know that during WWII the British usually referred to Sonar as ASDIC.
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| 40. | She had a British Type 123 ASDIC installed in March and was fitted with degaussing equipment the following month.
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