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Type 2 12cm Mortar Kai

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Type 2 12cm Mortar Kai

No.346 二式12cm迫撃砲改

Depth Charges Depth Charge

Effects: Evasion+1 Anti-Submarine+3

Scrap Value: Fuel1 Ammunition2 Steel1 Bauxite1

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 Class
Coastal Defense ShipDestroyer
Light CruiserTorpedo Cruiser
Heavy CruiserAviation Cruiser
BattleshipAviation Battleship
Fast BattleshipLight Carrier
Standard CarrierArmored Carrier
Seaplane TenderSubmarine Tender
SubmarineSubmarine Carrier
Repair ShipTraining Cruiser
Fleet OilerAmphibious Assault Ship



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.


How To Obtain

Stock equipment of Mikura KaiMikura Kai, Shinshuu Maru KaiShinshuu Maru Kai

From quests: B139 (x3, choice), C37 (choice), F89, F90 (choice)

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

Event reward for:

Exchange reward from Sardines 2019

Ranking reward for:

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


Used to improve Type 2 12cm Mortar KaiType 2 12cm Mortar Kai

Ships receive a boost of 15% more ASW firepower when this is used together with a SONAR. This equipment does not get the 10% bonus when used with a depth charge or the 43% SONAR+DC+DCP synergy bonus. However, since its 15% SONAR synergy bonus is unique, it can stack with the 43% bonus to give a total bonus of 64%. This is only possible on ships with 4 slots. As a Mortar, provides a small damage bonus against Installations.

Akashi's Improvement Arsenal

Type Name Resource Day 2nd Ship Note
Fuel Ammunition Steel Bauxite Item Icon Development Material.png Item Icon Improvement Material.png # of equipment needed for that upgrade. An asterisk following the number indicates a different equipment is required. Sun Mon Tue Wed Thu Fri Sat
Depth Charges Type 2 12cm Mortar Kai 0 20 120 30 10 2/3 2/2 1xDrum.png  
X X Ni
Akitsu Maru Kai
Uses Drum Canister for improvement up to ★+6
Uses Type 94 Depth Charge Projector for improvement past ★+6
Uses 2x Type 2 12cm Mortar Kai and Action Report for upgrade to Type 2 12cm Mortar Kai (Concentrated Deployment).
6 4/6 3/4 1xDepthCharge.png
10 18/30 6/9 2xDepthCharge.png
1xAction Report

See Also