Type 2 Depth Charge

No.227 二式爆雷
DepthCharge.png Depth Charge
Effects: ASW+7
Scrap value: Fuel 1 Ammo 3 Bauxite 1 (Unbuildable)

Equipment Card Type 2 Depth Charge.png

Equipment Character Type 2 Depth Charge.png

Equipment Item Type 2 Depth Charge.png

Equipment Full Type 2 Depth Charge.png

Refittable Class
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。
爆雷は戦訓を踏まえ、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もに装備することで、対潜能力の向上が図れます。

This is additional depth charge equipment for use in anti-submarine actions.
The depth charges have been improved from wartime testing.
When equipped in combination with depth charge projectors, sonar, and such anti-submarine equipment on destroyers, coastal defense ships, and the like, anti-submarine ability will increase.

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 1.4375[math]\displaystyle{ 1.15 \times 1.25 }[/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 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,
  • [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.

Notes

How To Obtain

Stock equipment of: Akigumo Kai Ni  (★+7)

Upgradeable from: Type 95 Depth Charge 

From quest: By2 (choice), By6 (x2, choice), B140 (x2, choice), B191 (x2, choice), C23 (choice), C27 (choice)

From limited-time quest: 21Su LB3 (x3, choice), 2101 LQ1 (x2, choice), SB28 (x2, choice), S (x2, choice), SB50 (x2, choice), SB54 (x2, choice), Su08, 2110 LB02 (x3, choice), 2112 LB02 (x2, choice), 22Fa LB05 (x3, choice), 2302 C1 (x2, choice), 2402 C1 (x2, choice)

Event reward for:

Uses

Used to improve: Type 2 Depth Charge , Type 2 Depth Charge Kai Ni 

Updates History

  • 2017-05-02: Implemented
  • 2022-08-04: Became improvable
  • 2023-06-14: Became possible to equip in expansion slots of certain ships

Improvement

  Type 2 Depth Charge

Improvement Not
Upgradable
★ Improvement
Level
0~5 6~9


  Consumed 4/5 5/6
  Consumed 2/2 3/4
Equipment
Consumed
   
Items
Consumed
-
Resources  10  110  10  80
Ship Helper Conversion
 
Shiratsuyu Kai Ni
-
Mon Tue Wed Thu Fri Sat Sun
 
Mikura Kai
Mon Tue Wed Thu Fri Sat Sun
 
Yashiro Kai
Mon Tue Wed Thu Fri Sat Sun
 
Kurahashi Kai
Mon Tue Wed Thu Fri Sat Sun
 
Hiburi Kai
Mon Tue Wed Thu Fri Sat Sun
 
Daitou Kai
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

See Also