Category:Sonars

This category contains all equipment or equipment types classified as Sonars.

This category is populated by Template:EquipmentCategoriesKai. Please do not manually add pages to this category.

Mechanics

Sonars are the main equipment used for ASW, being required to trigger most OASW, and greatly enhancing ASW Damage Synergy. Their main stat is "ASW" .

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

Small + DCP + DCR

1.25

Examples

[math]\displaystyle{ \text{Mod}_\text{synergy} }[/math]

Small + DCP + DCR

Large + DCP + DCR

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,

Note

Armor penetration from equipment stacks,
The final armor of the targetted submarine cannot go below 1.

Sonars	Small Small Sonars	Large Large Sonars
Passive	Type 93 Passive Sonar, Type 4 Passive Sonar	Type 0 Passive Sonar
Active	Type 3 Active Sonar, Type 3 Active Sonar Kai, Type124 ASDIC, Type144/147 ASDIC, HF/DF + Type144/147 ASDIC

In the game, the active/passive distinction is only meaningful for Saury fishing.

Listed By Stats

Green: Outstanding
Yellow: Above Average

No.	Rarity	Name	Equipment Type						Refittable Types			Notes
46	☆	Type 93 Passive Sonar 九三式水中聴音機	Small Sonar	6	0	0	1	0	DE, DD, CL, CLT, CVL (Only: Gambier Bay Mk.II, Houshou Kai Ni, Houshou Kai Ni Sen, Shinyou, Shinyou Kai, Shinyou Kai Ni, Taiyou Kai, Taiyou Kai Ni, Unyou Kai, Unyou Kai Ni), FBB (Only: Conte di Cavour Nuovo, Haruna Kai Ni B, Haruna Kai Ni C, Hiei Kai Ni C, Kirishima Kai Ni C, Kongou Kai Ni C, Richelieu Deux, Yamato Kai Ni), BB (Only: Musashi Kai Ni), BBV (Only: Hyuuga Kai Ni, Yamato Kai Ni Juu), SS, SSV, AV (Only: Akitsushima Kai, Commandant Teste, Commandant Teste Kai, Mikuma Kai Ni Toku, Nisshin A, Nisshin Kai), LHA (Only: Kumano Maru, Kumano Maru Kai, Shinshuu Maru Kai), CVB (Only: Victorious, Victorious Kai), CT, AO (Except: Hayasui, Kamoi)	✔️	✔️
47	☆ ☆ ☆	Type 3 Active Sonar 三式水中探信儀		10		0	2			✔️
149	☆ ☆ ☆ ☆	Type 4 Passive Sonar 四式水中聴音機		12		1	1			❌
260	☆ ☆ ☆	Type124 ASDIC Type124 ASDIC		11		0	2	1
261	☆ ☆ ☆ ☆	Type144/147 ASDIC Type144/147 ASDIC		13			3	1
262	☆ ☆ ☆ ☆ ☆	HF/DF + Type144/147 ASDIC HF/DF + Type144/147 ASDIC		15	2		3	2			❌
438	☆ ☆ ☆ ☆	Type 3 Active Sonar Kai 三式水中探信儀改		11	0	1	2	1			✔️
132	☆ ☆ ☆	Type 0 Passive Sonar 零式水中聴音機	Large Sonar	11	1	0	1	1	DD (Only: Akizuki Kai, Fletcher Mk.II, Fuyutsuki Kai, Hatsuzuki Kai, Mogador Kai, Suzutsuki Kai, Teruzuki Kai), CL (Only: Noshiro Kai Ni, Yahagi Kai Ni, Yahagi Kai Ni B, Yuubari Kai Ni D), CA, CAV, CVL (Except: Kasuga Maru, Shinyou, Shinyou Kai, Taiyou, Taiyou Kai, Unyou, Unyou Kai, Yawata Maru), FBB, BB (Except: Conte di Cavour), BBV, CV, AV (Except: Nisshin), LHA (Except: Kumano Maru, No.101 Transport Ship, No.101 Transport Ship Kai), CVB, AS, AO (Only: Kamoi Kai Bo, Souya (AGB), Yamashio Maru Kai)		✔️
No.	Rarity	Name	Equipment Type						Refittable Types			Notes