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Type 2 12cm Mortar Kai

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No.346 二式12cm迫撃砲改
DepthCharge.png Depth Charge
Effects: ASW+3 Evasion+1
Provides bonuses against installations
Scrap value: Fuel 1 Ammo 2 Steel 1 Bauxite 1 (Unbuildable)

Equipment Card Type 2 12cm Mortar Kai.png

Equipment Character Type 2 12cm Mortar Kai.png

Equipment Item Type 2 12cm Mortar Kai.png

Equipment Full Type 2 12cm Mortar Kai.png

Refittable Ship Types
Fast Battleship Battleship
Aviation Battleship Standard Aircraft Carrier
Armored Carrier Light Carrier
Heavy Cruiser Aviation Cruiser
Light Cruiser Torpedo Cruiser
Training Cruiser Destroyer
Coastal Defense Ship Submarine
Aircraft Carrying Submarine Seaplane Tender
Fleet Oiler Submarine Tender
Repair Ship Amphibious Assault Ship

Introduction

元々は大戦後半期に日本陸軍が開発した陸戦用の迫撃砲です。
十分な対潜装備のなかった陸軍の船舶などに搭載され、前方投射型の対潜火器としても運用されました。
本兵装は同迫撃砲をさらに改良した艦載用強化型です。
爆雷投射機の代替として、また限定的ながら対地攻撃も可能です。

This mortar was originally developed by the Imperial Japanese Army in the latter half of the war.
It was mounted forwards for anti-submarine use on IJA ships that did not have sufficient anti-submarine equipment.
This is an improved shipborne model of that mortar.
It can substitute for a depth charge projector and is also capable of limited ground attacks.

Mechanics

Depth Charges Depth Charges are one of the main equipment used for ASW, greatly enhancing ASW Damage Synergy. Their main stat is "ASW" Anti-Submarine Warfare.

ASW MortarOther ASW Mortars have additional Anti-Installation bonuses similar to Anti-Ground Rockets.

ASW Damage Synergy
Small SONARSmall Small Sonars
Equipment Card Type 93 Passive Sonar.png
Type 93 Passive Sonar
Equipment Card Type 4 Passive Sonar.png
Type 4 Passive Sonar
Equipment Card Type 3 Active Sonar.png
Type 3 Active Sonar
Equipment Card Type 3 Active Sonar Kai.png
Type 3 Active Sonar Kai
Equipment Card Type124 ASDIC.png
Type124 ASDIC
Equipment Card Type144 147 ASDIC.png
Type144/147 ASDIC
Equipment Card HF DF + Type144 147 ASDIC.png
HF/DF + Type144/147 ASDIC
Large SONARLarge Large Sonars
Equipment Card Type 0 Passive Sonar.png
Type 0 Passive Sonar
Depth Charge ProjectorDCP Depth Charge Projectors (DCP)
Equipment Card Type 94 Depth Charge Projector.png
Type 94 Depth Charge Projector
Equipment Card Type 3 Depth Charge Projector.png
Type 3 Depth Charge Projector
Equipment Card Type 3 Depth Charge Projector (Concentrated Deployment).png
Type 3 Depth Charge Projector (Concentrated Deployment)
Equipment Card Prototype 15cm 9-tube ASW Rocket Launcher.png
Prototype 15cm 9-tube ASW Rocket Launcher
Equipment Card RUR-4A Weapon Alpha Kai.png
RUR-4A Weapon Alpha Kai
AP
Equipment Card Mk.32 ASW Torpedo (Mk.2 Thrower).png
Mk.32 ASW Torpedo (Mk.2 Thrower)
AP
Depth Charge RacksDCR Depth Charge (Racks) (DCR)
Equipment Card Type 95 Depth Charge.png
Type 95 Depth Charge
AP
Equipment Card Type 2 Depth Charge.png
Type 2 Depth Charge
AP
Equipment Card Lightweight ASW Torpedo (Initial Test Model).png
Lightweight ASW Torpedo (Initial Test Model)
AP
Equipment Card Hedgehog (Initial Model).png
Hedgehog (Initial Model)
AP
Equipment Card Type 2 Depth Charge Kai 2.png
Type 2 Depth Charge Kai Ni
AP
ASW MortarOther ASW Mortars
Equipment Card Type 2 12cm Mortar Kai.png
Type 2 12cm Mortar Kai
Equipment Card Type 2 12cm Mortar Kai (Concentrated Deployment).png
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] SONAR + Depth Charges
(Any Sonar + Any Depth Charge)
1.15
[math]\displaystyle{ {Mod}_\text{2} }[/math] Depth Charge ProjectorDCP + Depth Charge RacksDCR and NO Small SONARSmall 1.1
Small SONARSmall + Depth Charge ProjectorDCP + Depth Charge RacksDCR 1.25
Examples
[math]\displaystyle{ \text{Mod}_\text{synergy} }[/math] Small SONARSmall + Depth Charge ProjectorDCP + Depth Charge RacksDCR 1.4375[math]\displaystyle{ 1.15 \times 1.25 }[/math]
Large SONARLarge + Depth Charge ProjectorDCP + Depth Charge RacksDCR 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 Anti-Submarine Warfare 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: Mikura KaiMikura Kai, Shinshuu Maru KaiShinshuu Maru Kai, Kumano Maru KaiKumano Maru Kai, Yamashio MaruYamashio Maru, Yamashio Maru KaiYamashio Maru Kai

From quest: By7 (x2, choice), B139 (x3, choice), C37 (choice), F89, Fq9 (choice)

From limited-time quest: 2010LQ1 (x2, choice), 2103B1 (choice), W20B1 (choice), 2203 B1 (choice)

Ranking reward for:

  • Jun 2019: 1-5, 6-20, 21-100 (x2), 101-500
  • Jul 2019: 21-100, 101-500

Event reward for:

Exchange reward from Sardines 2019

Uses

Used to improve: Type 2 12cm Mortar KaiType 2 12cm Mortar Kai, Soukoutei (Armored Boat Class)Soukoutei (Armored Boat Class), Armed DaihatsuArmed Daihatsu

Updates History

Fit Bonuses

Type 2 12cm Mortar Kai Equipment Bonuses
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
Yamashio Maru (any)Yamashio Maru
Yamashio Maru Kai
(1st equipped) +1 +1 One-time

Improvement

DepthCharge.png Type 2 12cm Mortar Kai

Improvement Conversion
★ Improvement
Level
0~5 6~9
Equipment Card Type 2 12cm Mortar Kai (Concentrated Deployment).png
Type 2 12cm Mortar Kai (Concentrated Deployment)
Development material Consumed 2/3 4/6 18/30
Improvement material Consumed 2/2 3/4 6/9
Equipment
Consumed
Equipment Card Drum Canister (Transport Use).png Equipment Card Type 94 Depth Charge Projector.png Equipment Card Type 2 12cm Mortar Kai.pngx2
Items
Consumed
- Item Icon Action Report.png
Resources Fuel20 Ammunition120 Steel30 Bauxite10
Ship Helper Conversion
Ship Banner Nisshin.png
Nisshin/Kai/A
Equipment Card Type 2 12cm Mortar Kai (Concentrated Deployment).png
Type 2 12cm Mortar Kai (Concentrated Deployment)
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Akitsu Maru Kai.png
Akitsu Maru Kai
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Kamikaze.png
Kamikaze/Kai
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Yamashio Maru.png
Yamashio Maru/Kai
Mon Tue Wed Thu Fri Sat Sun
Improvement Improved effects
Depth Charges 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Firepower 0.75 1.06 1.29 1.50 1.67 1.83 1.98 2.12 2.25 2.37
Anti-Submarine Warfare 0.67 0.94 1.15 1.33 1.49 1.63 1.76 1.89 2.00 2.11

See Also