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Partials/Opening ASW
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The opening anti-submarine attack (OASW) can be performed by any ship with displayed ASW value of 100 or greater (ship's ASW stat + any equipment ASW stats, not counting equipment improvements) and at least one sonar.
- Isuzu Kai Ni, Tatsuta Kai Ni, Jervis Kai and Samuel B. Roberts Kai can always perform OASW, even with less than 100 displayed ASW or without any ASW equipment.
- Taiyou, Gambier Bay, and Zuihou Kai Ni B can perform OASW with 1+ planes with 7 ASW stat equipped and a total displayed ASW of 65 or greater. For Taiyou Kai and Taiyou Kai Ni the bombers are not required, 65 displayed ASW is sufficient (however, if she is not using a torpedo or dive bomber with ASW stat, she will be able to perform OASW attack but will be unable to perform ASW attacks in the shelling phase). OASW attacks will be performed even if she is at medium damage or all her planes were shot down.
- Coastal Defense Ships can perform OASW with displayed ASW of 60 or greater. With displayed ASW of 75 or greater and equipment ASW of 4 or greater they can perform OASW without a sonar equipped.
- If several ships fulfill the requirements, then they all can perform preemptive attacks, each attacking a random submarine in the enemy fleet. The firing order is determined by the range order, similar to the First Shelling Phase. The order for ships of the same range is random.
- The damage follows the usual ASW formula and is affected by the usual modifiers (formation, engagement, health, ammo), as well as equipment improvements.The following tables show how much base ASW is needed (in form of required ship level) to enable OASW with a given equipment setup (T4: Type 4 Passive Sonar, T3: Type 3 Active Sonar, DC: Type 3 Depth Charge Projector).
DD | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Ship | 3 Slots | 2 Slots | 1 Slot | ||||||||
T4/T4/T4 36 + 64 |
T4/T4/T3 34 + 66 |
T4/T4/DC 32 + 68 |
T4/T3/DC 30 + 70 |
T3/T3/DC 28 + 72 |
T4/T4 24 + 76 |
T4/T3 22 + 78 |
T4/DC 20 + 80 |
T3/DC 18 + 82 |
T4 12 + 88 |
T3 10 + 90 | |
Asashio K2D | 85 | 97 | 102 | ||||||||
Libeccio Kai | 60 | 65 | 70 | 75 | 80 | 90 | 95 | 99 | 104 | 119 | 124 |
Satsuki K2 | 75 | 78 | 82 | 90 | 94 | 98 | 101 | 113 | 117 | ||
Fumizuki K2 | 77 | 78 | 82 | 90 | 94 | 98 | 101 | 113 | 117 | ||
Asashimo Kai | 66 | 70 | 75 | 79 | 84 | 93 | 97 | 102 | 106 | 120 | 124 |
Ushio K2 | 74 | 79 | 83 | 88 | 93 | 102 | 106 | 111 | 116 | 129 | 134 |
ВерныйВерный | 77 | 81 | 86 | 90 | 95 | 104 | 108 | 113 | 117 | 131 | 135 |
Akizuki Kai Teruzuki Kai Hatsuzuki Kai |
81 | 85 | 90 | 95 | 99 | 109 | 114 | 118 | 123 | 137 | 142 |
Harukaze Kai | 84 | 88 | 92 | 96 | 99 | 107 | 111 | 115 | 119 | 131 | 135 |
Shigure K2 | 83 | 87 | 92 | 97 | 102 | 112 | 116 | 121 | 126 | 141 | 145 |
Matsukaze Kai | 88 | 92 | 96 | 99 | 103 | 111 | 115 | 119 | 123 | 135 | 139 |
Kamikaze Kai | 87 | 91 | 95 | 99 | 104 | 112 | 117 | 121 | 125 | 138 | 143 |
Yuudachi K2 Murakumo K2 Hatsushimo K2 Mutsuki K2 |
87 | 92 | 97 | 102 | 107 | 116 | 121 | 126 | 131 | 145 | 150 |
Hatsuharu K2 | 87 | 92 | 97 | 102 | 107 | 117 | 122 | 127 | 132 | 148 | 153 |
Kisaragi K2 | 88 | 92 | 97 | 102 | 107 | 116 | 121 | 125 | 130 | 144 | 149 |
Fubuki K2 | 90 | 95 | 99 | 104 | 109 | 118 | 123 | 128 | 132 | 147 | 151 |
Kasumi K2 |
90 | 95 | 99 | 104 | 109 | 119 | 124 | 129 | 134 | 149 | 154 |
Asakaze Kai | 92 | 96 | 99 | 103 | 107 | 115 | 119 | 123 | 127 | 139 | 143 |
Akatsuki K2 | 94 | 99 | 105 | 110 | 115 | 126 | 131 | 136 | 141 | 157 | 162 |
Ooshio K2 | 99 | 105 | 110 | 115 | 120 | 131 | 136 | 141 | 146 | 162 | N/A |
Ayanami K2 Kawakaze K2 |
102 | 107 | 113 | 118 | 123 | 133 | 139 | 144 | 149 | 165 | N/A |
Arashio K2 | 114 | 120 | 126 | 132 | 138 | 150 | 156 | 162 | N/A | N/A | N/A |
Shimakaze Kai Yukikaze Kai |
115 | 121 | 127 | 134 | 140 | 152 | 158 | 164 | N/A | N/A | N/A |
CL/CLT | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Ship | 3 Slots | 2 Slots | 1 Slot | ||||||||
T4/T4/T4 36 + 64 |
T4/T4/T3 34 + 66 |
T4/T4/DC 32 + 68 |
T4/T3/DC 30 + 70 |
T3/T3/DC 28 + 72 |
T4/T4 24 + 76 |
T4/T3 22 + 78 |
T4/DC 20 + 80 |
T3/DC 18 + 82 |
T4 12 + 88 |
T3 10 + 90 | |
Kinu K2 | 75 | 80 | 86 | 91 | 108 | 113 | |||||
Naka K2 | 48 | 49 | 54 | 59 | 65 | 75 | 81 | 86 | 91 | 108 | 113 |
Sakawa Kai | 63 | 66 | 70 | 74 | 77 | 85 | 88 | 92 | 96 | 107 | 110 |
Yura K2 | 77 | 79 | 85 | 91 | 97 | 114 | 120 | ||||
Abukuma K2 | 75 | 82 | 88 | 94 | 99 | 117 | 123 | ||||
Kiso K2 | 65 | 68 | 72 | 76 | 80 | 88 | 92 | 96 | 99 | 111 | 115 |
Agano Kai Noshiro Kai Yahagi Kai |
68 | 71 | 75 | 78 | 82 | 89 | 92 | 96 | 99 | 110 | 114 |
Jintsuu K2 | 60 | 65 | 70 | 75 | 80 | 90 | 95 | 99 | 104 | 119 | 124 |
Kitakami K2 Ooi K2 |
71 | 75 | 79 | 82 | 86 | 94 | 98 | 101 | 105 | 117 | 120 |
Kuma Kai Tama Kai Natori Kai |
72 | 76 | 80 | 83 | 87 | 94 | 98 | 101 | 105 | 116 | 119 |
Sendai K2 | 72 | 77 | 83 | 88 | 94 | 105 | 110 | 116 | 121 | 138 | 143 |
Tenryuu Kai Tatsuta Kai |
88 | 93 | 97 | 102 | 106 | 115 | 119 | 124 | 129 | 141 | 146 |
4 Slots CL/CT/DD | ||||||
---|---|---|---|---|---|---|
Ship | 4 Slots | |||||
T4/T4/T4/T4 48 + 52 |
T4/T4/T4/T3 46 + 54 |
T4/T4/T4/DC 44 + 56 |
T4/T4/T3/DC 42 + 58 |
T4/T3/T3/DC 40 + 60 |
T3/T3/T3/DC 38 + 62 | |
Tashkent Kai | 50 | 50 | 50 | 54 | 60 | 66 |
Yuubari Kai Kashima Kai |
62 | 66 | 71 | 75 | 80 | 84 |
Katori Kai | 75 | 80 | 85 | 90 | 95 | 99 |
Ooyodo Kai | 132 | 138 | 143 | 148 | 153 | 158 |
Ship | 3 Slots | |||||
T4/T4/T4 36 + 64 |
T4/T4/T3 34 + 66 |
T4/T4/DC 32 + 68 |
T4/T3/DC 30 + 70 |
T3/T3/DC 28 + 72 | ||
Tashkent Kai | 72 | 78 | 84 | 90 | 96 | |
Yuubari Kai Kashima Kai |
88 | 93 | 97 | 102 | 106 | |
Katori Kai | 104 | 109 | 114 | 119 | 124 | |
Ooyodo Kai | 163 | N/A | N/A | N/A | N/A | |
Ship | 2 Slots | 1 Slot | ||||
T4/T4 24 + 76 |
T4/T3 22 + 78 |
T4/DC 20 + 80 |
T3/DC 18 + 82 |
T4 12 + 88 |
T3 10 + 90 | |
Tashkent Kai | 108 | 114 | 120 | 126 | 144 | 150 |
Yuubari Kai Kashima Kai |
115 | 119 | 124 | 129 | 141 | 146 |
Katori Kai | 134 | 139 | 144 | 149 | 164 | N/A |
Ooyodo Kai | N/A | N/A | N/A | N/A | N/A | N/A |