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Created page with "{{CombatPortal}} '''Submarines''' (SS, also including '''"Aircraft Carrying Submarines"''' SSV) are characterized by relatively low armor and HP. By contrast, they ar..."
{{CombatPortal}}
'''Submarines''' ([[SS]], also including '''"Aircraft Carrying Submarines"''' [[SSV]]) are characterized by relatively low armor and HP. By contrast, they are difficult to handle using "normal setups", requiring instead specific '''Anti-Submarine Warfare (ASW)''' equipment and setups in order to be sunk.
During sorties, submarines are typically found at pre-boss nodes, but some can be boss themselves, see ''[[Enemy#Bosses (SS)|here]]''.
==Attack Behavior==
Unlike regular surface ships, submarines:
*Cannot be targeted by normal shelling attacks,
*Are immune to air and torpedo attacks,
*Cannot take more than [[Scratch Damage|scratch damage]] during night battle,
**'''Therefore they cannot be sunk at night''',
**The exception to this rule is when a battle starts at night, or when attacking with a [[Combined Fleet]].
===ASW attack conditions===
Only certain ships meeting certain conditions can attack SS(V).
*Here, {{AnyBomber}} refers to any {{RedPlane}}/{{BluePlane}}
{|class="wikitable"
!Ship!!Condition!!Day Battle!!Night Battle
|-
|{{Ship/Link|Taiyou Kai Ni|Shinyou Kai Ni|Unyou Kai Ni|text=''Taiyou''-class Kai Ni|link_class=Taiyou}}<br>{{Ship/Link|Kaga Kai Ni Go}}
|rowspan=4|Not more than {{color|orange|'''moderately damaged (中破)'''}}<br>Have an {{AnyBomber}} with 1+{{ASW}}<ref>A 0{{ASW}} attack plane paired with a [[Rotorcraft]] {{Autogyro}} or a [[Liaison Aircraft]] {{ASWPlane}} do work</ref>
|rowspan=3|Prioritize SS
|[[Combat/Night_Battle#Trigger Requirements|Nigth Air Attack]] will prioritize surface target<ref>In absence of surface target will do a night shelling against SS</ref><br>Nigth Shelling prioritize SS
|-
|{{Ship/Link|Gambier Bay Mk.II}}
|Prioritize SS (with a special night air attack)
|-
|All other [[CVL]]
|rowspan=4|Do not attack SS
|-
|{{Ship/Link|Suzuya Kou Kai Ni|Kumano Kou Kai Ni|text=''Mogami''-class Kou Kai Ni|link_class=Mogami}}
|Prioritize surface target<ref>Can still attack SS</ref>
|-
|{{Ship/Link|Hayasui Kai}}<br>{{Ship/Link|Yamashio Maru Kai}}
|Equiped with {{AnyBomber}}
|rowspan=2|Prioritize SS
|-
|[[BBV]], [[CAV]], [[AV]], [[LHA]]
|{{SPB}}, {{Autogyro}}, {{Large Flying Boat}}, {{AnyBomber}} with 1+{{ASW}}
|-
|{{Ship/Link|Hayasui Kai}}<br>{{Ship/Link|Yamashio Maru Kai}}
|Not equiped with {{AnyBomber}}
|colspan=2 rowspan=2|Prioritize SS
|-
|All other ships
|At least 1 base {{ASW}} ASW
|}
<references/>
==Damage calculation==
The stats used to calculate damage against submarines is the {{ASW}} ASW.
*When contributing to ASW power, Base {{ASW}} ASW is '''square rooted''', while equipment ASW is '''multiplied by 1.5'''
**[[:Category:Anti-submarine Weaponry|Anti-submarine weaponry]] is therefore the primary source of ASW damage, with the base ship ASW playing a very minor role damage-wise.
**However, base ship ASW is the primary determinant of whether a ship can reach 100 total ASW to perform '''"[[#Opening ASW Shelling (OASW)|Opening ASW]]"''' (OASW) attacks.
*Unlike sheeling, ASW damage is capped at 170.
ASW attacks have different modifiers gained from [[Formation]]s,
*{{ToolTip|[[Combat#Formation_Selection|Line Abreast]]|[[File:LineAbreast.png]]}} is the main ASW formation, with a 1.3x damage modifier,
*{{ToolTip|[[Combined_Fleet#Formation_Selection|Cruising Formation 1]]|[[File:Formation_1.png]]}} is the main ASW formation for [[Combined Fleet]]s, with a 1.3x damage modifier.
{|class="wikitable mw-collapsible mw-collapsed" width="100%"
!Anti-Submarine
|-
|'''Pre-cap:
*<math>\text{ASW Power} = \left( 2\sqrt{\text{ASW}_\text{ship}} + 1.5\text{ASW}_\text{equip} + \bigstar + \text{Type}_\text{ship} \right) \times \text{Mod}_\text{synergy}</math>
'''With:
*<math>\text{Type}_\text{ship}</math> a constant depending on the type of the ship performing the attack. See below for details.
{|class="wikitable mw-collapsible mw-collapsed" style="text-align:center; margin:auto"
!colspan=2|Ship Type Constant
|-
!Ship Types
!<math>\text{Type}_\text{ship}</math>
|-
|Coastal Defence Ships ([[DE]])<br>Destroyers ([[DD]])<br>Light Cruisers ([[CL]]/[[CT]])<br>Oilers ([[AO]]) (without carrier bomber)
|13
|-
|Aviation Cruisers ([[CAV]])<br>Aviation Battleships ([[BBV]])<br>Seaplane Tenders ([[AV]])<br>Light Carriers ([[CVL]])<br>Landing Ships ([[LHA]])<br>Oilers ([[AO]]) (with carrier bomber)
|8
|}
*<math>\text{Mod}_\text{synergy}</math> the synergy multiplier bonus from using certain combinations of ASW equips (''see below'').
*The bonuses do not stack, meaning only the highest possible bonus applies.
**The exception is the depth charge '''penetration''' detailed above.
*Multiple equipments of the same type still only apply the bonus '''once'''.
*There is an accuracy bonus as well but it is small. Stacking sonars will give a bigger accuracy bonus.
|}
{{Template:Equipment/ASW_Synergy}}
==Opening ASW Shelling (OASW)==
{{:Combat/Battle Opening}}
==Equipment Set Up==
Are listed here some recommended equipment setups for ASW duties. ''The equipment order is illustrative and does not reasonably matter.
As general rules:
*The first priority is to have OASW, even at the expense of synergy:
**[[DE]] can OASW more easily than [[DD]],
**Because {{ASW}} increase with levels using high-level ships can help,
**Take note that DEs have bonus armor penetration from Depth Charges.
*To further maximize ASW effectiveness, regardless if an OASW is triggered or not, it is recommended to use:
**{{Small Sonar}} {{DCP}} {{DCR}}
*When using carriers, it is recommended to use [[CVE]], as they have a base {{ASW}} stat.
{|class="wikitable" width=100%
!width=13%|Equipment
!|Notes
|-
!colspan=2|[[DD]]/[[DE]]/[[CL]]/...
|-
|{{Small Sonar}} {{DCP}} {{DCR}}{{WildCard}}
| This ASW setup maximizes the ASW by taking advantage of the synergy. One of the depth charges needs to be a [[DCR|Depth Charge Projector]] while the other needs to be a [[DCR|Depth Charge (Racks)]]. Take note that '''reaching the [[OASW]] threshold takes precedence over everything'''. So you should just replace depth charges with equipment that has better ASW if you cannot hit the threshold with this setup.
|-
!colspan=2|[[CVL]]/[[Kaga Kai Ni Go]]
|-
|{{BluePlane}}/{{RedPlane}}/{{Autogyro}}/{{ASWPlane}}/{{Sonar}}/{{DepthCharge}}
|[[ASW aircraft]] or just planes with good ASW should be prioritized. It is possible to maintain some surface combat capabilities, by doing a normal CVCI with high ASW panes, or by stacking {{BluePlane}}.
|-
!colspan=2|Unique setup
|-
|{{RedGunHeavy}}{{RedGunHeavy}}{{Seaplane}}{{WildCard}}{{Autogyro}}
|The {{Autogyro}} must be an '''{{EquipmentLink|S-51J|S-51J Kai|text=Helicopter|link_category=Helicopters}}''', and should be placed in the smaller plane slot when other planes are used.
Setup unique to {{Ship/Link|Hyuuga Kai Ni}} which allows her to do an [[OASW]] with a decent base ASW, while keeping some surface combat capabilities like [[Artillery Spotting]].
|}
==LBAS==
''See the [[Land-Based Air Squadron#Attack Power|Land-Based Air Squadron]] page
*Only [[ASW Aircraft|ASW Planes]] (7+ {{ASW}} ASW) can attack submarine during this phase.
**If submarines are present, those planes will prioritize attacking submarines, while other attackers will only be able to attack surface targets.
{{Category:ASW Aircrafts}}
==ASW Support Expedition==
''See [[Support Expedition#Anti-Submarine Support|ASW Support Expedition]]
* If a CVL is present, aircraft with {{ASW}} ASW will attack submarines regardless of the ship on which it's equipped.
=See Also=
{{Mechanics}}
'''Submarines''' ([[SS]], also including '''"Aircraft Carrying Submarines"''' [[SSV]]) are characterized by relatively low armor and HP. By contrast, they are difficult to handle using "normal setups", requiring instead specific '''Anti-Submarine Warfare (ASW)''' equipment and setups in order to be sunk.
During sorties, submarines are typically found at pre-boss nodes, but some can be boss themselves, see ''[[Enemy#Bosses (SS)|here]]''.
==Attack Behavior==
Unlike regular surface ships, submarines:
*Cannot be targeted by normal shelling attacks,
*Are immune to air and torpedo attacks,
*Cannot take more than [[Scratch Damage|scratch damage]] during night battle,
**'''Therefore they cannot be sunk at night''',
**The exception to this rule is when a battle starts at night, or when attacking with a [[Combined Fleet]].
===ASW attack conditions===
Only certain ships meeting certain conditions can attack SS(V).
*Here, {{AnyBomber}} refers to any {{RedPlane}}/{{BluePlane}}
{|class="wikitable"
!Ship!!Condition!!Day Battle!!Night Battle
|-
|{{Ship/Link|Taiyou Kai Ni|Shinyou Kai Ni|Unyou Kai Ni|text=''Taiyou''-class Kai Ni|link_class=Taiyou}}<br>{{Ship/Link|Kaga Kai Ni Go}}
|rowspan=4|Not more than {{color|orange|'''moderately damaged (中破)'''}}<br>Have an {{AnyBomber}} with 1+{{ASW}}<ref>A 0{{ASW}} attack plane paired with a [[Rotorcraft]] {{Autogyro}} or a [[Liaison Aircraft]] {{ASWPlane}} do work</ref>
|rowspan=3|Prioritize SS
|[[Combat/Night_Battle#Trigger Requirements|Nigth Air Attack]] will prioritize surface target<ref>In absence of surface target will do a night shelling against SS</ref><br>Nigth Shelling prioritize SS
|-
|{{Ship/Link|Gambier Bay Mk.II}}
|Prioritize SS (with a special night air attack)
|-
|All other [[CVL]]
|rowspan=4|Do not attack SS
|-
|{{Ship/Link|Suzuya Kou Kai Ni|Kumano Kou Kai Ni|text=''Mogami''-class Kou Kai Ni|link_class=Mogami}}
|Prioritize surface target<ref>Can still attack SS</ref>
|-
|{{Ship/Link|Hayasui Kai}}<br>{{Ship/Link|Yamashio Maru Kai}}
|Equiped with {{AnyBomber}}
|rowspan=2|Prioritize SS
|-
|[[BBV]], [[CAV]], [[AV]], [[LHA]]
|{{SPB}}, {{Autogyro}}, {{Large Flying Boat}}, {{AnyBomber}} with 1+{{ASW}}
|-
|{{Ship/Link|Hayasui Kai}}<br>{{Ship/Link|Yamashio Maru Kai}}
|Not equiped with {{AnyBomber}}
|colspan=2 rowspan=2|Prioritize SS
|-
|All other ships
|At least 1 base {{ASW}} ASW
|}
<references/>
==Damage calculation==
The stats used to calculate damage against submarines is the {{ASW}} ASW.
*When contributing to ASW power, Base {{ASW}} ASW is '''square rooted''', while equipment ASW is '''multiplied by 1.5'''
**[[:Category:Anti-submarine Weaponry|Anti-submarine weaponry]] is therefore the primary source of ASW damage, with the base ship ASW playing a very minor role damage-wise.
**However, base ship ASW is the primary determinant of whether a ship can reach 100 total ASW to perform '''"[[#Opening ASW Shelling (OASW)|Opening ASW]]"''' (OASW) attacks.
*Unlike sheeling, ASW damage is capped at 170.
ASW attacks have different modifiers gained from [[Formation]]s,
*{{ToolTip|[[Combat#Formation_Selection|Line Abreast]]|[[File:LineAbreast.png]]}} is the main ASW formation, with a 1.3x damage modifier,
*{{ToolTip|[[Combined_Fleet#Formation_Selection|Cruising Formation 1]]|[[File:Formation_1.png]]}} is the main ASW formation for [[Combined Fleet]]s, with a 1.3x damage modifier.
{|class="wikitable mw-collapsible mw-collapsed" width="100%"
!Anti-Submarine
|-
|'''Pre-cap:
*<math>\text{ASW Power} = \left( 2\sqrt{\text{ASW}_\text{ship}} + 1.5\text{ASW}_\text{equip} + \bigstar + \text{Type}_\text{ship} \right) \times \text{Mod}_\text{synergy}</math>
'''With:
*<math>\text{Type}_\text{ship}</math> a constant depending on the type of the ship performing the attack. See below for details.
{|class="wikitable mw-collapsible mw-collapsed" style="text-align:center; margin:auto"
!colspan=2|Ship Type Constant
|-
!Ship Types
!<math>\text{Type}_\text{ship}</math>
|-
|Coastal Defence Ships ([[DE]])<br>Destroyers ([[DD]])<br>Light Cruisers ([[CL]]/[[CT]])<br>Oilers ([[AO]]) (without carrier bomber)
|13
|-
|Aviation Cruisers ([[CAV]])<br>Aviation Battleships ([[BBV]])<br>Seaplane Tenders ([[AV]])<br>Light Carriers ([[CVL]])<br>Landing Ships ([[LHA]])<br>Oilers ([[AO]]) (with carrier bomber)
|8
|}
*<math>\text{Mod}_\text{synergy}</math> the synergy multiplier bonus from using certain combinations of ASW equips (''see below'').
*The bonuses do not stack, meaning only the highest possible bonus applies.
**The exception is the depth charge '''penetration''' detailed above.
*Multiple equipments of the same type still only apply the bonus '''once'''.
*There is an accuracy bonus as well but it is small. Stacking sonars will give a bigger accuracy bonus.
|}
{{Template:Equipment/ASW_Synergy}}
==Opening ASW Shelling (OASW)==
{{:Combat/Battle Opening}}
==Equipment Set Up==
Are listed here some recommended equipment setups for ASW duties. ''The equipment order is illustrative and does not reasonably matter.
As general rules:
*The first priority is to have OASW, even at the expense of synergy:
**[[DE]] can OASW more easily than [[DD]],
**Because {{ASW}} increase with levels using high-level ships can help,
**Take note that DEs have bonus armor penetration from Depth Charges.
*To further maximize ASW effectiveness, regardless if an OASW is triggered or not, it is recommended to use:
**{{Small Sonar}} {{DCP}} {{DCR}}
*When using carriers, it is recommended to use [[CVE]], as they have a base {{ASW}} stat.
{|class="wikitable" width=100%
!width=13%|Equipment
!|Notes
|-
!colspan=2|[[DD]]/[[DE]]/[[CL]]/...
|-
|{{Small Sonar}} {{DCP}} {{DCR}}{{WildCard}}
| This ASW setup maximizes the ASW by taking advantage of the synergy. One of the depth charges needs to be a [[DCR|Depth Charge Projector]] while the other needs to be a [[DCR|Depth Charge (Racks)]]. Take note that '''reaching the [[OASW]] threshold takes precedence over everything'''. So you should just replace depth charges with equipment that has better ASW if you cannot hit the threshold with this setup.
|-
!colspan=2|[[CVL]]/[[Kaga Kai Ni Go]]
|-
|{{BluePlane}}/{{RedPlane}}/{{Autogyro}}/{{ASWPlane}}/{{Sonar}}/{{DepthCharge}}
|[[ASW aircraft]] or just planes with good ASW should be prioritized. It is possible to maintain some surface combat capabilities, by doing a normal CVCI with high ASW panes, or by stacking {{BluePlane}}.
|-
!colspan=2|Unique setup
|-
|{{RedGunHeavy}}{{RedGunHeavy}}{{Seaplane}}{{WildCard}}{{Autogyro}}
|The {{Autogyro}} must be an '''{{EquipmentLink|S-51J|S-51J Kai|text=Helicopter|link_category=Helicopters}}''', and should be placed in the smaller plane slot when other planes are used.
Setup unique to {{Ship/Link|Hyuuga Kai Ni}} which allows her to do an [[OASW]] with a decent base ASW, while keeping some surface combat capabilities like [[Artillery Spotting]].
|}
==LBAS==
''See the [[Land-Based Air Squadron#Attack Power|Land-Based Air Squadron]] page
*Only [[ASW Aircraft|ASW Planes]] (7+ {{ASW}} ASW) can attack submarine during this phase.
**If submarines are present, those planes will prioritize attacking submarines, while other attackers will only be able to attack surface targets.
{{Category:ASW Aircrafts}}
==ASW Support Expedition==
''See [[Support Expedition#Anti-Submarine Support|ASW Support Expedition]]
* If a CVL is present, aircraft with {{ASW}} ASW will attack submarines regardless of the ship on which it's equipped.
=See Also=
{{Mechanics}}