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Type 0 Passive Sonar

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No.132 零式水中聴音機
Sonar.png Large Sonar
Effects: ASW+11 Accuracy+1 Evasion+1 LoS+1
Scrap value: Steel 3 Bauxite 3 (Unbuildable)

Equipment Card Type 0 Passive Sonar.png

Equipment Character Type 0 Passive Sonar.png

Equipment Item Type 0 Passive Sonar.png

Equipment Full Type 0 Passive Sonar.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

大型艦用パッシブソナー兵装です。
九三式水中聴音機の捕音機を増強した大型グレードアップバージョンで、大和型戦艦のバルバス・バウ付近にも装備されました。
専門の人員も配置して水面下の音を収集、敵潜などの早期発見に努めます。

A Passive SONAR system for large ships. An upgrade from the Type 93 Passive SONAR, with a larger sound collector, it was equipped on Yamato-class ships within their bulbous bow.
The IJN had specialized personnel constantly listening on the machine, trying to quickly recognize any enemy submarines.

Notes

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
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} }[/math]
SONAR + Depth Charges 1.15x
Depth Charge ProjectorDCP + Depth Charge RacksDCR 1.1x
Large SONARLarge + Depth Charge ProjectorDCP + Depth Charge RacksDCR 1.265xLarge SONARLarge + Depth Charges = 1.15x
Depth Charge ProjectorDCP + Depth Charge RacksDCR = 1.1x

1.15 * 1.1(1 + 0.1) = 1.265x
Small SONARSmall + Depth Charge ProjectorDCP + Depth Charge RacksDCR 1.4375xSmall SONARSmall + Depth Charge ProjectorDCP / ASW MortarOther = 1.15x
Small SONARSmall + Depth Charge RacksDCR = 1.15x
Depth Charge ProjectorDCP + Depth Charge RacksDCR = 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 quest: B124 (choice)

Ranking reward for:

  • Feb 2015: 1-5 (x2), 6-20, 21-100, 101-500
  • Jun 2015: 1-5, 6-20, 21-100, 101-500
  • Sep 2015: 1-5
  • Oct 2015: 1-5, 6-20, 21-100

Updates History

  • 2015-03-18: Implemented as ranking reward
  • 2022-08-04: Became improvable

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Accuracy Note
Any Ship (★3-4) +1 One-time, additional to below
(★5-6) +1 +1
(★7) +1 +2
(★8) +2 +2
(★9) +2 +2 +1
(★MAX) +3 +2 +1
Taihou KaiTaihou Kai
Shoukaku Kai Ni/AShoukaku Kai Ni
Shoukaku Kai Ni A

Zuikaku Kai Ni/AZuikaku Kai Ni
Zuikaku Kai Ni A
+2
Yamato Kai Ni/JuuYamato Kai Ni
Yamato Kai Ni Juu

Musashi Kai NiMusashi Kai Ni
+1

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 0 Passive Sonar 0 10 0 50 110 5/7 4/5 1xSonar.png X X X H H H X HieiHiei
6 6/9 4/6 1xSonar.png
10 - - -

See Also