Type 2 Depth Charge Kai 2

	[Edit] Type 2 Depth Charge Kai 2 No.488 二式爆雷改二
	Depth Charge Effects: +1 +8 +1 +1 Scrap value: 1 4 1 (Unbuildable)
	Refittable Ship Types
Coastal Defense Ship	Destroyer
Light Cruiser	Torpedo Cruiser
Heavy Cruiser	Training Cruiser
Aviation Cruiser	Fast Battleship
Battleship	Aviation Battleship
Light Carrier	Standard Aircraft Carrier
Armored Carrier	Seaplane Tender
Submarine	Aircraft Carrying Submarine
Submarine Tender	Fleet Oiler
Repair Ship	Amphibious Assault Ship

Introduction

対潜水艦に使用する増加爆雷装備です。
装填爆薬の改良、爆発深度調整幅の拡大、誘爆対策など、爆雷は戦訓を踏まえ、実用的に大きく改良されています。
駆逐艦や海防艦などに爆雷投射機やソナー類などの対潜装備とともに装備することで、対潜能力の向上が図れます。
一部改装駆逐艦で、さらに高い運用性を発揮します。

A supplementary depth charge for anti-submarine use.
Using lessons learned in combat, these depth charges have been upgraded with a larger explosive charge, wider operational depth, and resistance to secondary explosions.
You can improve the anti-submarine strength of destroyers and coastal defense ships by equipping this along with depth charge projectors and sonars.
It has even greater capabilities on certain remodeled destroyers.

Mechanics

Depth Charges are one of the main equipment used for ASW, 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.

Can be equipped in RE of DE and Shigure Kai Ni/San.

Notes

How To Obtain

From limited-time quest: 2301 D1 (choice)

Ranking reward for:

Nov 2022: 1-5 (★+9), 6-20 (★+7), 21-100 (★+5), 101-500 (★+3)

Updates History

2022-12-31: Implemented
2023-01-20: Became improvable
2023-06-14: Became possible to equip in expansion slots of certain ships

Fit Bonuses

Ship	Extra Requirement
Shigure	(★0-4)	+2	+1
	(★5-6)	+3	+1
	(★7-8)	+3	+2
	(★9)	+3	+2	+1
	(★MAX)	+4	+2	+1
	+ Kai	+1	+1	+1
Shigure Kai Ni	(★0-2)	+6	+5	+2
	(★3-4)	+6	+6	+2
	(★5-6)	+7	+6	+2
	(★7)	+7	+6	+3
	(★8)	+7	+7	+3
	(★9)	+8	+7	+3
	(★MAX)	+9	+7	+3
Fusou-class Kai Ni	(★0-4)	+1
	(★5-6)	+2
	(★7-8)	+2	+1
	(★9)	+2	+1	+1
	(★max)	+3	+1	+1
Coastal Defense Ships Other Destroyers		+1	+1

Improvement

Type 2 Depth Charge Kai 2
Improvement			Not Upgradable
★ Improvement Level	0~5	6~9
Consumed	6/7	8/10
Consumed	3/4	5/7
Equipment Consumed		x2
Items Consumed	-
Resources	20 140 10 90

Ship Helper	Conversion
Shigure Kai Ni/San	-
Mon		Tue	Wed	Thu	Fri	Sat	Sun

Improvement effects
DCR	1★	2★	3★	4★	5★	6★	7★	8★	9★	Max★
	0.67	0.94	1.15	1.33	1.49	1.63	1.76	1.89	2.00	2.11