| 1. | In 1985, " Arethusa " was fitted with towed array sonar.
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| 2. | In 1984, " Phoebe " completed her towed array sonar refit.
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| 3. | They also use a Thales ( Thomson Marconi Sonar ) Sintra towed array sonar.
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| 4. | In 1986, the vessel was the testbed for the Experimental Towed Array Sonar System.
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| 5. | The Canadian Towed Array Sonar ( CANTASS ) has been integrated into the towed sonar suite.
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| 6. | The following year, " Cleopatra " was fitted with the new towed array sonar.
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| 7. | It was given a towed array sonar, ASW torpedoes and the ELMA anti-submarine grenade launcher system.
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| 8. | She was also one of the few of the class that carried the AN / SQR-15 Towed Array Sonar System.
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| 9. | The ship's primary passive ASW sensor was the AN / SQR-19 Tactical Towed Array Sonar ( TACTAS ).
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| 10. | Information released from the Severnoye Design Bureau ( SDB ) indicate that French towed array sonars ( TAS ) are also fitted.
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