RUR-4A Weapon Alpha Kai

No.377 RUR-4A Weapon Alpha改
DepthCharge.png Depth Charge
Effects: Armor+1 ASW+17 Accuracy+1 Evasion+1
Scrap value: Fuel 1 Ammo 10 Steel 4 Bauxite 4 (Unbuildable)

Equipment Card RUR-4A Weapon Alpha Kai.png

Equipment Character RUR-4A Weapon Alpha Kai.png

Equipment Item RUR-4A Weapon Alpha Kai.png

Equipment Full RUR-4A Weapon Alpha 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

増大する潜水艦の脅威に対抗するため開発された、革新的な次世代の対潜前投ロケット弾兵装です。
実機は不具合の多発により運用上の問題を抱えていましたが、本兵装は改良によって不発率の低下に成功したif改修兵装です。
本兵装のコンセプトは、あの名対潜兵装アスロックへと受け継がれていきます。

This is a revolutionary next-generation forward-firing anti-submarine rocket weapon developed to counter the increasing threat of submarines.
The base version was plagued with problems during actual use, but this is a what-if version where improvements succeeded in reducing the rate of misfires.
The main concept behind this weapon was succeeded by the famed ASROC ASW weapons system.

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

From quest: B149

Updates History

  • 2020-05-20: Implemented

Fit Bonuses

Ship Extra Requirement               Note
Fletcher Mk.II  +3 +3
US Ships 
 
 
 
+2 +1
British Ships 
 

Australian Ships 
+1 +1
Dan Yang /Yukikaze Kai Ni  +1 +2

See Also