| 21. | The ship could also hunt submarines, and was equipped with hydrophones, depth charge throwers and rails.
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| 22. | Later in the ship's career, two depth charge throwers and four depth charge chutes were installed.
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| 23. | Four 24in torpedo tubes and depth charge throwers were added as the requirements changed to a general-purpose warship.
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| 24. | A pair of depth charge racks were mounted as well as four " BMB-1 " depth charge throwers.
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| 25. | Anti-submarine armament consisted of two depth charge throwers and one rack, with a total of 30 depth charges carried.
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| 26. | After World War I depth charge throwers were developed, which could hurl depth charges some off the side of a ship.
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| 27. | The ships also had two depth charge throwers and one depth charge rail on the stern that came with 15 depth charges.
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| 28. | The destroyer was also fitted with two 3-tube torpedo sets, two depth charge chutes, and four depth charge throwers.
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| 29. | The main armament of the " Shimushu " class consisted of three Type 97 trench mortar and six depth charge throwers.
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| 30. | The main armament of the " Etorofu " class consisted of three Type 97 trench mortar and six depth charge throwers.
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