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Type 3 Active Sonar Kai

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No.438 三式水中探信儀改
Sonar.png Sonar
Effects: Armor+1 ASW+11 Accuracy+2 Evasion+1
Scrap value: Steel 2 Bauxite 4 (Unbuildable)

Equipment Card Type 3 Active Sonar Kai.png

Equipment Character Type 3 Active Sonar Kai.png

Equipment Item Type 3 Active Sonar Kai.png

Equipment Full Type 3 Active Sonar Kai.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

改修型の対潜兵装です。
日本海軍装備の主力アクティブソナーを改良調整、対潜戦闘の戦訓を取り入れて改修した三式水中探信儀の改良型です。
日本海軍の駆逐艦を中心として、いくつかの艦でより高い運用性を発揮します。

This is an improved piece of anti-submarine equipment.
It is an upgraded version of the main active sonar used by the Imperial Japanese Navy.
The Type 3 Active Sonar has been improved by incorporating lessons learned in combat.
It has increased performance on several ships, particularly on destroyers of the Imperial Japanese Navy.

Notes

ASW Damage Synergy
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
SONARLarge Large Sonars
Equipment Card Type 0 Passive Sonar.png
Type 0 Passive Sonar
Depth ChargesDCP 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 ChargesDCR 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
Depth ChargesOther 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
SONAR + Depth Charges 1.15x
Depth ChargesDCP + Depth ChargesDCR 1.1x
SONARLarge + Depth ChargesDCP + Depth ChargesDCR 1.265xSONARLarge + Depth Charges = 1.15x
Depth ChargesDCP + Depth ChargesDCR = 1.1x

1.15 * 1.1(1 + 0.1) = 1.265x
SONARSmall + Depth ChargesDCP + Depth ChargesDCR 1.4375xSONARSmall + Depth ChargesDCP / Depth ChargesOther = 1.15x
SONARSmall + Depth ChargesDCR = 1.15x
Depth ChargesDCP + Depth ChargesDCR = 1.1x

1.15 * 1.25(1 + 0.1 + 0.15) = 1.4375
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,
  • Armor penetration from equipment stacks,
  • The final armor of the targetted submarine cannot go below 1.

How To Obtain

From quests: B172, F103

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
Shigure Kai NiShigure Kai Ni
Kamikaze KaiKamikaze Kai
Harukaze KaiHarukaze Kai
Asashimo Kai NiAsashimo Kai Ni
Yamakaze Kai Ni (D)Yamakaze Kai Ni
Yamakaze Kai Ni D
(★4-5) +1 One-time, additional to below
(★6-7) +1 +1
(★8-9) +2 +1
(★MAX) +2 +2
ShigureShigure
AsashimoAsashimo
KamikazeKamikaze
HarukazeHarukaze
YamakazeYamakaze
MaikazeMaikaze
+1 +3 +2 Stackable, additional to below
UshioUshio
IkazuchiIkazuchi
YamagumoYamagumo
IsokazeIsokaze
HamakazeHamakaze
KishinamiKishinami
+2 +2 Stackable, additional to below
ShigureShigure
YamakazeYamakaze
KamikazeKamikaze
HarukazeHarukaze
+2 +2 One-time
UshioUshio
IkazuchiIkazuchi
SuzukazeSuzukaze
MaikazeMaikaze
IsokazeIsokaze
HamakazeHamakaze
YamagumoYamagumo
UmikazeUmikaze
KawakazeKawakaze
+2 +1 One-time
Other IJN Destroyers
Isuzu Kai NiIsuzu Kai Ni
Naka Kai NiNaka Kai Ni
Yura Kai NiYura Kai Ni
IshigakiIshigaki
MikuraMikura
+1 +1 One-time
Katori-classKatori
Kashima
+2 +3 One-time between itself, Type 93 Passive Sonar, Type 3 Active Sonar, or Type 4 Passive Sonar

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
SONAR Type 3 Active Sonar Kai 0 20 0 70 60 6/8 4/5 1xSonar.png Y
 
Y
S
Y
S
Y
S
Y
S
Y
 
Y
 
Yamakaze Kai Ni
Shigure Kai Ni
6 8/12 6/7 2xSonar.png
10 - - -

See Also