12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director

No.296 12.7cm連装砲B型改四(戦時改修)+高射装置
GreenGunDP.png Small Caliber Main Gun (High-angle + Fire Director)
Effects: Firepower+3 AA+9 Armor+1 Accuracy+1 RangeShort
Scrap value: Ammo 3 Steel 2 Bauxite 2 (Unbuildable)

Equipment Card 12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director.png

Equipment Character 12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director.png

Equipment Item 12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director.png

Equipment Full 12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director.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

やや旧式化したB型砲の余剰装備に全面改修を実施、両用砲に換装した戦時改修if駆逐艦主砲です。
現実的な対空戦闘に対応するため、最大仰角、装填機構の換装、高射装置との連動等、従来のB型砲とは全く別の駆逐艦用兵装に昇華しています。
特II型以降、初春型、白露型などでの装備運用を想定して改修され、両用砲として対空戦闘も可能です。

A what-if remodel of what would happen if the remaining semi-obsolete Type-B guns underwent an extensive mid-war upgrade and conversion into dual-purpose main guns for destroyers.
In order to deal with the realities of anti-air combat, maximum elevation, and loading mechanisms have been improved. With the combination of a fire director, this Type-B gun has become an entirely new destroyer weapon.
It was meant to be equipped on the Special Type II, Special Type III, Hatsuharu-class, and Shiratsuyu-class after their upgrades. This dual-purpose gun is capable of anti-air combat.

Mechanics

Main Guns    are the main armament used by surface ships. Their main stats are the "firepower"   and "accuracy"  . They are notably required to trigger all Artillery Spotting attacks as well as some Night Cut-Ins, notably the "Double Attack" (DA).

  High-Angle Guns (sometimes "dual-purpose guns"), are anti-air focused guns, that can serve their main surface role, in addition to having extra   AA stats.

  • They are notably required in most AACI.

Notes

How To Obtain

From quest: B121, B178 (★+4, choice), F78

Ranking reward for:

  • May 2018: 1-5
  • Oct 2018: 1-5 (★+2)
  • Dec 2019: 1-5 (★+3), 6-20 (★+2), 21-100 (★+1), 101-500

Event reward for:

Updates History

  • 2018-06-29: Implemented as ranking reward
  • 2020-02-07: Became improvable

Fit Bonuses

Ship Extra Requirement               Note
Shiratsuyu Kai Ni  +2 +2
Shigure Kai Ni  +2 +1 +1
Murasame Kai Ni  +1 +1 +2
Yuudachi Kai Ni  +2 +1 +1
Umikaze Kai Ni 
Kawakaze Kai Ni 
Shiratsuyu Kai 
Murasame Kai 
+1 +2
Other Shiratsuyu-class  
  
  
  
  
+1 +1
All Shiratsuyu-class  
  
  
  
  
+ AIR Radar +6
+ LOS Radar +1 +3 +2
+ 61cm Quadruple (Oxygen) Torpedo Mount  +1 +3 Does not stack
+ 61cm Quadruple (Oxygen) Torpedo Mount Late Model 
Ship Extra Requirement               Note
Hatsuharu-class 
 
 
 
 
+1 +1
+ AIR Radar +5
+ LOS Radar +1 +2 +2
+ 61cm Triple (Oxygen) Torpedo Mount  +1 +3 Does not stack
+ 61cm Triple (Oxygen) Torpedo Mount Late Model 
Ship Extra Requirement               Note
Shikinami Kai Ni  +3 +1 Replaces Ayanami-class base bonus.
All extra requirement bonuses still apply.
Amagiri Kai Ni (D) 
 
+4
Ayanami-class 
 
 
 
 
 
 
 

Akatsuki-class 
 
 
 
+1
+ AIR Radar +5
+ LOS Radar +1 +2 +2
+ 61cm Triple (Oxygen) Torpedo Mount  +1 +3 Does not stack
+ 61cm Triple (Oxygen) Torpedo Mount Late Model 

Improvement

  12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director

Improvement Not
Upgradable
★ Improvement
Level
0~5 6~9


  Consumed 10/12 15/30
  Consumed 6/6 7/9
Equipment
Consumed
 x2  
Items
Consumed
-
Resources  30  90  130  50
Ship Helper Conversion
 
Shikinami Kai Ni
-
Mon Tue Wed Thu Fri Sat Sun
 
Shiratsuyu Kai Ni
Mon Tue Wed Thu Fri Sat Sun
 
Shigure Kai Ni
Mon Tue Wed Thu Fri Sat Sun
 
Shigure Kai San
Mon Tue Wed Thu Fri Sat Sun
Improvement   effects
 Main 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
  1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
  1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
[math]\displaystyle{ \text{AdjAA}_\text{ship} }[/math] 3.00 4.24 5.19 6.00 6.70 7.34 7.93 8.48 9.00 9.48
[math]\displaystyle{ \text{AdjAA}_\text{fleet} }[/math] 3.00 4.24 5.19 6.00 6.70 7.34 7.93 8.48 9.00 9.48
  Day 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
  Night 1.30 1.84 2.25 2.60 2.91 3.18 3.44 3.68 3.90 4.11

See Also