Category:Anti-submarine Weaponry

Equipment used for or focused on anti-submarine warfare (ASW), having a higher ASW stat.

This category only includes Depth Charges, Sonars, and ASW aircraft. Such equipment might be needed to trigger some OASW.

ASW Damage Synergy
Small Small Sonars	Type 93 Passive Sonar Type 4 Passive Sonar Type 3 Active Sonar Type 3 Active Sonar Kai Type124 ASDIC Type144/147 ASDIC HF/DF + Type144/147 ASDIC
Large Large Sonars	Type 0 Passive Sonar
DCP Depth Charge Projectors (DCP)	Type 94 Depth Charge Projector Type 3 Depth Charge Projector Type 3 Depth Charge Projector (Concentrated Deployment) Prototype 15cm 9-tube ASW Rocket Launcher RUR-4A Weapon Alpha Kai AP Mk.32 ASW Torpedo (Mk.2 Thrower) AP
DCR Depth Charge (Racks) (DCR)	Type 95 Depth Charge AP Type 2 Depth Charge AP Lightweight ASW Torpedo (Initial Test Model) AP Hedgehog (Initial Model) AP Type 2 Depth Charge Kai Ni AP
Other ASW Mortars	Type 2 12cm Mortar Kai Type 2 12cm Mortar Kai (Concentrated Deployment)
ASW Damage Modifiers: [math]\displaystyle{ \text{Mod}_\text{synergy} = {Mod}_\text{1} \times {Mod}_\text{2} }[/math]
[math]\displaystyle{ {Mod}_\text{1} }[/math]	+ (Any Sonar + Any Depth Charge)	1.15
[math]\displaystyle{ {Mod}_\text{2} }[/math]	DCP + DCR and NO Small	1.1
[math]\displaystyle{ {Mod}_\text{2} }[/math]	Small + DCP + DCR	1.25
Examples
[math]\displaystyle{ \text{Mod}_\text{synergy} }[/math]	Small + DCP + DCR	1.4375[math]\displaystyle{ 1.15 \times 1.25 }[/math]
[math]\displaystyle{ \text{Mod}_\text{synergy} }[/math]	Large + DCP + DCR	1.265[math]\displaystyle{ 1.15 \times 1.1 }[/math]
Armor Penetration
Indepentant of synergies, some equipment provides additional armor penetration to ASW attacks. The affected equipment are: DCR: Type 95 DC, Type 2 DC, Lightweight ASW Torpedo, Hedgehog, Type 2 DC K2 DCP: RUR-4A Weapon Alpha Kai, Mk.32 ASW Torpedo (Mk.2 Thrower). The flat armor penetration value is calculated as follows: [math]\displaystyle{ \text{Pen} = \sum\limits_{\text{Equipment}} \Big( \sqrt{\text{ASW}_\text{Equipment} - 2} + \text{Mod}_\text{ship} \Big) }[/math] With: [math]\displaystyle{ \text{ASW}_\text{Equipment} }[/math] the base ASW stat of the applicable equipment, Visible Bonuses and Improvements are not counted here. [math]\displaystyle{ \text{Mod}_\text{ship} }[/math] being 1 for DE, 0 otherwise, Armor penetration from equipment stacks, The final armor of the targetted submarine cannot go below 1.

Aircraft with at least 7 ASW , can be used to trigger special OASW and are required to perform Land-based ASW attacks.

ASW Aircraft
Rotorcraft	Autogyros	Ka Type Observation Autogyro O Type Observation Autogyro Kai O Type Observation Autogyro Kai Ni
Rotorcraft	Helicopters	S-51J S-51J Kai
Liaison Aircraft		Type 3 Command Liaison Aircraft (ASW) Type 3 Command Liaison Aircraft Kai Type 1 Fighter Hayabusa Model II Kai (20th Squadron) Type 1 Fighter Hayabusa Model III Kai (Skilled/20th Squadron)
Land-based Patrol Aircraft		Prototype Toukai Toukai (901 Air Group)
+7 ASW Torpedo Bombers		Type 97 Torpedo Bomber (931 Air Group) Type 97 Torpedo Bomber (931 Air Group/Skilled) Tenzan (931 Air Group) Prototype Type 97 Torpedo Bomber Kai (Skilled) No. 3 Model E (w/ Type 6 Airborne Radar Kai) Tenzan Model 12A Kai (Skilled w/ Type 6 Airborne Radar Kai) Ryuusei Kai (CarDiv 1/Skilled) Swordfish Mk.III (Skilled) Barracuda Mk.III TBM-3D TBM-3W+3S
+7 ASW Dive Bombers		Ju 87C Kai Ni (w/ KMX) Ju 87C Kai Ni (w/ KMX/Skilled) Type 0 Fighter Model 64 (Two-seat w/ KMX)
+7 ASW Seaplanes	Recons	Type 0 Reconnaissance Seaplane Model 11B Type 0 Reconnaissance Seaplane Model 11B (Skilled)
+7 ASW Seaplanes	Bombers	Swordfish Mk.III Kai (Seaplane Model) Swordfish Mk.III Kai (Seaplane Model/Skilled) Zuiun Kai Ni (634 Air Group/Skilled)