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Combat/Anti-Installation

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Installations are an enemy-type representing "land-based installations", and are characterized by high armor and high HP. They are difficult to handle using normal anti-ship setups and require specific setups in order to be destroyed. Installations are typically found as bosses or as boss escorts.

General Characteristics

  • Installations cannot perform or benefit from flagship protection.
  • They have different damage statuses instead of the normal ones used for ships.
    • These statuses are merely cosmetic in nature and have no gameplay difference.
Ship Damage Label Installation Damage Label
Lightly Damaged
(小破) 		Confused
(混乱)
Moderately Damaged
(中破) 		Damaged
(損害)
Heavily Damaged
(大破) 		Broken
(損壊)
Sunk
(撃沈) 		Destroyed
(破壊)

Installation Classification

Installations are classified by two categories: Ship Type (BB, BBV, or CV) and Toughness (Soft Skin or Hard Skin).

Installations Glossary

Here is a list of all "Installation type Abyssals" ever encountered in the game.

  • Are listed the base forms of those installations, most coming in many variations often depending on the map difficulty, the map state (last-dance), and the event itself (most events bringing new variations).
    • Some installation sub-forms of interest are also listed, those forms having special variations like a different type than the main form, of some special abilities.
  • Note that some toughness characterization may be erroneous, since most of those installations were introduced before this system was defined.
    • Some event-only installations might not fall in one of these categories.
Installations Glossary
Type Soft Soft (Supply Depot) Hard
CAV  
BB    Vac DMG Mod B Vac DMG Mod B Summer Landing DMG Mod C DMG Mod D DMG     
BBV               Summer Vac Mod B Mod B Vac Mod B Summer Landing Mod C Mod D Mod E Vac       
CV    
"Installation-Like Warships"
   Mod C Vac Mod C Vac DMG  
Those Abyssals are still considered surface ships, but receive bonus damage from anti-installation equipment, see here.
Ship Type
Type Characteristics
Battleship (BB)
  • Uses the surface shelling formula for calculating damage.
  • Uses the shelling attack animation in day and night battles.
  • Can continue attacking when moderately damaged.
Aviation Battleship (BBV)
  • Uses the carrier attack formula for calculating damage.
  • Uses the shelling attack animation in day and night battles.
  • Cannot attack during the day if moderately damaged or if there are no planes left.
  • Forced to attack submarines if they have equipment with  Anti-Submarine stat.
Carrier (CV)
  • Uses the carrier attack formula for calculating damage.
  • Uses the carrier attack animation in day battle and the shelling animation at night.
  • Cannot attack during the day if moderately damaged or if there are no planes left.
  • Do not enable the 2nd shelling phase if there is no battleship present.
Skin Toughness
Type Characteristics
Soft Skin
  • Takes a lot of damage from  AA Shells 
     
          and less from other Anti-Installation equipment.
    • This weakness allows battleships and heavy cruisers to easily deal with these installation types.
    • Still takes a decent amount of damage from other anti-installation equipment.
Soft Skin
Supply Depot
  • Are all the standard "Soft Skin" property, with notably extra "Post-Cap modifiers", and can launch torpedo attacks.
    • They are infamously weak to Nuke Setups , dealing damages in the thousands, potentially beyond the display cap of 9999.
Hard Skin
Notes
  • The Northernmost Landing Princess is not immune to the Torpedo   stat.
    • This means that during a Night Battles, the full "Night Battle Power"   is used to calculate damage against her.
    • She is still immune to torpedo-based attacks, which does not include airstrikes.
  • The Harbour Water Demon cannot attack during day battles when "moderately damaged" (like carriers).
    • Standard Night Battle rules still apply (she can attack even if moderately damaged).

Attack Behavior

The targeting of installation follow some special rules.

Support Expedition

  • Shelling Support expedition can attack installations.
  • It's unknown if torpedo support and ASW support will target installations or not.

Air strike

  • Jet assault and air strikes can attack installations normally.

Shelling

Carriers can only attack installations if equipped with at least one anti-installation Dive Bombers with non-zero slot, or if equipped with only torpedo bombers (no dive bombers or jets).

  • Carriers equipped with no anti-installation Dive Bombers and at least one Normal dive bomber or jet with non-zero slot can not attack installations.
  Dive-Bombers that can attack installations

Carriers will only attack installations in the shelling phase if equipped with Torpedo Bombers or Anti-Installation Dive Bombers.

  • Additionally, carriers will attack installations if equipped with non-special dive bombers AND one of the special dive bombers below.
  • Any other dive bomber will completely disable shelling against installations even if the carrier has a torpedo bomber equipped.
  • This can be very useful to manipulate the targeting mechanic so the carriers attack important targets.
 
Ju 87C Kai
 
Prototype Nanzan
 
F4U-1D
 
FM-2
 
Ju 87C Kai Ni (w/ KMX)
 
Ju 87C Kai Ni (w/ KMX/Skilled)

 
Suisei Model 12 (634 Air Group w/ Type 3 Cluster Bombs)
AAR
 
Suisei Model 12 (w/ Type 31 Photoelectric Fuze Bombs)
AAR
 
Type 99 Dive Bomber Model 22
 
Type 99 Dive Bomber Model 22 (Skilled)
 
SB2C-3
 
SB2C-5
 
F4U-4
AAR

Submarines can only attack installations during the shelling if equipped with   Amphibious Vehicles.

  • They will only target installations during the shelling phases.
  • They will be able to attack installations at night regardless of equipment.
  • Their low firepower makes them poor anti-installation ships.

Carriers are unable to perform CVCI on installations, even if equipped with anti-installation dive bombers.

"LST" type ships (No.101 Transport Ship  so far) will focus on installations if any are present.

Special Attacks behave like normal against installation.

In general, using dedicated "Landing Equipment" or other "Anti-Installation Equipment" is recommended to deal the most damage against installations:

Anti-Ground Equipment
Shells   Anti-Aircraft Shells
  Armor Piercing Shells
Anti-Ground Artilleries   Anti-Ground Rockets
 Other ASW Mortars
  Landing Craft  TP Transport Craft 
 
 Tank Landing Tanks
 Armed Armed Boats 
 
  Amphibious Vehicles
  Landing Forces
Seaplanes  Bomber Seaplane Bombers
  Seaplane Fighters
  Anti-Installation Dive Bombers
  Barrage Balloons
  Rations

Torpedo

Opening Torpedo Salvos, Closing Torpedo Salvos, and Torpedo-based Cut-ins (like the TCI) cannot target installations.

  • Those attacks will fail to trigger if only installation targets remain.

Night Battle

  • The Torpedo   stat is ignored when calculating night battle damage against installations. Please see Night Battle for more details.
    • This makes destroyers, light cruisers, and heavy cruisers much weaker unless equipped with anti-installation equipment.
  • When targeting installation the Cut-in choice will ignore any equipped torpedo.
    • This means a ship with 2 mains guns + 1 torpedo, which would normally perform Mixed Torpedo Cut-in on surface targets, would perform Double Attack on installations instead.
    • Exception for any DD Cut-ins: If the attacker has a main gun equipped, they can activate DD Cut-ins on installations, even if the main gun is not part of the cut-in's prerequisites (torpedo stat is still considered equal to 0).
  • Night shelling Carrier Attacks will deal damage like they would to ships.
    • This include Ark Royal's night swordfish attack.
  • Air night attacks ignore all anti-installation bonus
    • The attack can target installations even if no anti-installation dive bombers is equipped

Barrage Balloon

 
Example of a balloon deployed.

  Barrage Balloons can be deployed in certain situations during day battles.

Barrage Balloons can only be deployed on certain combat nodes with Installations
Compatible Nodes
Map Node Notes
3-5 H
4-3 N Boss
4-5 T Boss
6-4 N Boss
Events Refers to the current event page
references [2][3][4][5]
Once deployed
  • For every ship with a balloon equipped will boost the damage of the fleet and the LBAS (post-cap):
Balloon Effects
  1 2 3
Allied Day Shelling Damage
Allied balloons [6] 1.02 1.04 1.06
Allied LBAS Damage
Allied balloons [7] 1.02 1.04 1.06
Enemy balloons [8] 0.95 0.90 0.85
  • The effect stacks up to 3 balloons, and up to 1 balloon per ship,
  • The effect applies to LBAS and day shelling, with the enemy balloons also negatively affecting allied LBAS,
  • The effect does not apply to torpedo phases or night battles,
  • If the ship deploying it is sunk, the balloon is then removed, as well as its effects.

Damage Calculation

  • During day, damage is capped at 220 so any ship with a proper anti-installation setup will be able to hit the cap.
    • When facing hard-skinned installations, it is better for battleships to have AP shells instead of Type 3 because they will hit the day cap anyway.
  • Anti-installation is very important during night battle when the cap is raised to 360.
  • Torpedo stat is always counted as 0 when attacking installations. This applies to both airstrikes and night battles.
    • However improvements that provide damage during Night Battle is taken into account during such.
  • Supply Depot Princess is the only known installation that takes post-cap damage from anti-installation equipment.
    • This makes her vulnerable to getting one shot by Nuke Setups . See here for details.
  • While dive bombers have a post-cap bonus during the air-strike, the low base damage means it is of limited effectiveness against high armor installations.
  • The Armor Piercing modifier (post-cap) is effective against installation.

Calculation

Installations generally have a lot of HP and/or armor. But multiple different cumulative bonuses exist against them, allowing for massive damage when using the right set-ups. These bonuses are divided into 5 groups and are calculated in the following order[1]:

  1. Ship type bonuses,
  2. General multiplicative bonuses,
  3. Landing craft specific bonuses,
  4. Flat damage bonuses,
  5. Post-cap bonuses,
  6. Airstrike and land-base special cases,
  7. "Installation-like warships" special cases.
  • The bonuses' exact order is still under investigation and may be subject to changes.
Damage Bonuses Calculations
Pre-cap

Surface Shelling:

[math]\displaystyle{ \text{Atk}_\text{pre-cap} = \Big[ f_{14} \circ f_{13} \circ f_{12} \circ f_{11} \circ f_{10} \circ f_{09} \circ f_{08} \circ f_{07} \circ f_{06} \circ f_{05} \circ f_{04} \circ f_{03} \circ f_{02} \circ f_{01}\big( [ \text{Atk}_\text{base} {\color{tomato} \times \text{A0}} {\color{DeepSkyBlue} + \text{B0}} ] {\color{tomato} \times \text{A1}} {\color{DeepSkyBlue}} \big) {\color{DeepSkyBlue} + \text{B1}} \Big] \times \text{Mod}_\text{others} }[/math]


Carrier Shelling:

[math]\displaystyle{ \text{Atk}_\text{pre-cap} = \Bigg[ \Big( f_{01} \circ f_{02} \circ f_{03} \circ f_{04} \circ f_{05} \circ f_{06} \circ f_{07} \circ f_{08} \circ f_{09} \circ f_{10} \circ f_{11} \circ f_{12} \circ f_{13} \circ f_{14}\big( [ \text{Atk}_\text{base} {\color{tomato} \times \text{A0} \times \text{A1}} ] {\color{DeepSkyBlue} + \text{B1}} \big) +(\text{DB} \times 1.3) + 15 \Big) \times 1.5 +25 \Bigg] \times \text{Mod}_\text{others} }[/math]
Cap
[math]\displaystyle{ \text{Atk}_\text{cap} = \text{Cap} + \sqrt{\text{Atk}_\text{pre-cap} - \text{Cap}} }[/math]
Post-Cap
[math]\displaystyle{ \text{Atk}_\text{post-cap} = \text{Atk}_\text{cap} \times \text{Mod}_\text{others} {\color{tomato} \times \text{C}} {\color{tomato} \times \text{C1} \times \text{Mod}_\text{Inst}} \times_\downarrow \text{Crit} }[/math]
With
  • [math]\displaystyle{ f_n(x) = x {\color{tomato} \times \text{A2n}} {\color{DeepSkyBlue} + \text{B2n}} }[/math]
  • [math]\displaystyle{ \text{Atk}_\text{base} }[/math] the base attack deffined here,
  • A & C the Multiplicative bonuses,
  • B the Flat bonuses,
  • A & B being pre-cap bonuses,
  • C being post-cap bonuses.
  • [math]\displaystyle{ \text{Mod}_\text{others} }[/math] being all other modifiers unrelated to installation (see Damage Calculations for more details)
  • [math]\displaystyle{ \text{DB} }[/math] being the   bombing stat of Anti-installation Dive Bomber only
  • [math]\displaystyle{ \text{Cap} }[/math] is:
    • 220 during day,
    • 360 during night.
  1. ↑ https://docs.google.com/document/d/1mXGyJ3yeNWeOmuGZQrXkcuGSuSEQYqmKhPelHMkzkGI/edit

Bonuses

Ship Type Bonuses

Ship Type Target Bonuses
A0 DD, CL Pillboxes 
 
 
  		1.4
Akagi, Hiryuu, Souryuu[1]  
  		1.25
B0 SS, SSV All installation 30
  1. ↑ Kaga has been tested and no bonus has been found against the Harbour Summer Princess.

General Multiplicative Bonuses

These bonuses depend on the enemy targeted, as well as the equipment used.

A1[1]
Installation Type Soft-Skinned Hard-Skinned
  Pillboxes 
 
 
  		 
 
Isolated Island Princess Pillboxes Harbour Summer/Holiday
Princess
Number Equipped Single Multiple Single Multiple Single Multiple Single Multiple
  AA Shells 
 
  		2.5 1.75 1.75
  AP Shells 
 
  		1.85 1.3
  WG42 (Wurfgerät 42)  1.3 1.4 1.4 1.5 1.6 1.7 1.4 1.2
Type 4 Anti-Ground Rockets 
  		1.25 1.5 1.3 1.65 1.5 1.8 1.25 1.4
 Other ASW Mortars 
  		1.2 1.3 1.2 1.4 1.3 1.5 1.1 1.15
  Dive Bombers 1.4 1.75 1.5 2 1.3 1.2
 Bomber  Seaplane Bombers/Fighters 1.2 1.5 1.3
  Landing Craft Type and
  Ka-Tsu Type and
  Landing Forces Type Multiplier 		1.4 1.8 1.8 1.7
 
 
  		Toku Daihatsu 
Toku DLC + Panzer III [2]
Toku DLC + Panzer III J 
Infantry 
Infantry+Chi-Ha Kai  		1.15 1.15 1.15 1.2
DLC + T89 Tank 
Toku DLC + Ho-Ni Tank 
Toku DLC + Panzer III [2]
Toku DLC + Panzer III J 
Infantry 
Infantry+Chi-Ha Kai  		1.5 1.3 1.2 1.4 1.5 1.4 1.6 1.5
Toku DLC + Chi-Ha [3]
Toku DLC + Chi-Ha Kai [4]
T97 (Chi-Ha) 
T97 (Chi-Ha Kai) 
DLC + Panzer II  1.5 1.3 1.2 1.4 1.5 1.4 1.6 1.5
M4A1 DD 
Toku DLC + Chi-Ha Kai [4]
Toku DLC + Panzer III J 
T97 (Chi-Ha Kai) 
Infantry+Chi-Ha Kai  		1.1 1.8 2.0 2.0
☀ Day Only

Armed Daihatsu 
Soukoutei 

1.1 1.1 1.3 1.1 1.3 1.2 1.5 1.1
☀ Day Only

Ka-Tsu Tank 
Ka-Tsu Tank Kai 

  Ka-Mi Tank  1.5 1.2 2.4 1.35 2.4 1.35 2.8 1.5
Ka-Tsu Tank Kai [5]
Number Equipped 1 2 3
  Landing Forces[6] 1.4 1.2 1.1
   
Improvement 		  Landing Craft &
  Ka-Tsu Tanks 
  		1 + (Average DLC   /50) + (Average Ka-Tsu   /50)
  Ka-Mi Tank  1 + (Average   /30)
  Landing Forces
Notes

The Improvement Bonus takes the average for either

  • All Landing Craft equipped on the ship,
  • All Ka-Tsu tanks equipped on the ship,
  • All Ka-Mi tanks equipped on the ship.
  1. ↑ Last time updated: 21/03/2024, source:https://bbs.nga.cn/read.php?tid=33769345&rand=868
  2. ↑ 2.0 2.1 https://twitter.com/Divinity_123/status/1695813425660661965
  3. ↑ For example: vs Soft-Skin, 1 Chi-Ha  = no bonus, 2 Chi-Ha  = 1.3, 1 T89  + 1 Chi-Ha  = 1.95 (1.5x1.3)
  4. ↑ 4.0 4.1 https://docs.google.com/document/d/1y8kisQTFuAd57GFAQRpJzPOEk9kpUzoEf1sxmnywx3A/edit#heading=h.hycuzmt5tebu, TsunDB, confirmed except Harbour Summer Princess
  5. ↑ In this case the Ka-Tsu Kai count as two, 1 Ka-Tsu Kai = 1.2
  6. ↑ https://docs.google.com/document/d/1-tPbylmX7UDE25M_LSCz2gGuxCIs3OQw9hECeGyLFJk/edit

Landing Craft Specific Bonuses

The following multipliers are pre-cap.

Equipment Multiplicative Bonuses Flat Bonuses
Toku DLC Tank Bonus A201 B201

 Toku DLC + 11th Reg 
 Toku DLC + Ho-Ni Tank 
 Toku DLC + Panzer III 
 Toku DLC + Panzer III J 

1.8 25
Sherman Bonus A202 B202
 M4A1 DD  1.4 35
Ho-Ni Tank Regiment Bonus A203 B203
 Toku DLC + Ho-Ni Tank  1.3 42
Chi-Ha (non-Kai) Bonus A204 B204
 Toku DLC + Chi-Ha  1.4 28
Chi-Ha Kai Bonus A205 B205
 Toku DLC + Chi-Ha Kai  1.5 33
Infantry Bonus A026 B206
 Infantry 
 Infantry+Chi-Ha Kai  		1.2 60
T97 Chi-Ha Bonus A207 B207
 T97 (Chi-Ha) 
 T97 (Chi-Ha Kai)  		1.5 70
T97 Chi-Ha Kai Bonus A208 B208
 T97 (Chi-Ha Kai)  1.5 50
Infantry + Chi-Ha Kai Bonus A209 B209
 Infantry+Chi-Ha Kai  1.6 70
Landing Forces Synergy Bonus A210 B210
Multiple of   Landing Forces 2 100
Landing Forces / Amphibious Tanks Synergy Bonus A211 B211
  Landing Forces
  Amphibious Tanks 		 Ka-Tsu   Ka-Tsu Kai 
  ≥ 2 AND
  +   ≥ 3 OR  Infantry+Chi-Ha Kai  ≥ 1 		0 3 150
1 0 250
0 1 322
Katsu Bonus A212 B212
 Ka-Tsu 
 Ka-Tsu Kai  		1.2 42
Katsu Kai Bonus A213 B213
 Ka-Tsu Kai  1.1 28
Armored Boats Synergy Bonus[1] A214 B214
 Armed Daihatsu 
 Soukoutei  		Group 1
 
Daihatsu Landing Craft
 
Toku Daihatsu Landing Craft

 
Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)
 
Toku Daihatsu Landing Craft + Type 1 Gun Tank

 
Daihatsu Landing Craft (Panzer II/North African Specification)
 
Special Type 4 Amphibious Tank

 
Special Type 4 Amphibious Tank Kai
 Group 2
 
Toku Daihatsu Landing Craft + 11th Tank Regiment
 
Toku Daihatsu Landing Craft + Panzer III (North African Specification)

 
Toku Daihatsu Landing Craft + Chi-Ha
 
Toku Daihatsu Landing Craft + Chi-Ha Kai

 
Toku Daihatsu Landing Craft + Panzer III Ausf. J
 
Special Type 2 Amphibious Tank
Only one[2] 1 of Any 1.2 10
Both 1 0 1.3 15
0 1 1.4 20
2 of any 1.5 25
  1. ↑ https://twitter.com/oxke_admiral/status/1642326265364615168?cxt=HHwWgMDQxa7C28otAAAA
  2. ↑ Due to some bug using 2 Soukoutei or 2 Armed Daihatsu cancel the bonuses

Flat Damage Bonuses

B1
Amount Equipped 1 2 3 4+
  WG42  75 110 140 160
Type 4 Anti-Ground Rockets  55 115 160 190
Type 4 Anti-Ground Rockets CD  80 170 230 260
 Other ASW Mortar  30 55 75 90
ASW Mortar CD  60 110 150 180

Post-Cap Bonuses

Supply Depot Princess

Supply Depot Princess  and its variants are currently the only installations to have post-cap bonuses.

  • These bonuses are applied after the damage soft-cap, and can reach the damage display cap of 9999.
    • If the damage displayed is 9999, the actual damage can be higher.
  • Supply Depot Princess is a soft-skinned installation for purposes of Pre-Cap Bonuses.
C
Installation Type  
Supply Depot Princesses
Number Equipped Single Multiple
  WG42  1.25 1.3
Type 4 Anti-Ground Rockets 
  		1.2 1.4
 Other ASW Mortars 
  		1.15 1.2
  Landing Craft Type and
  Ka-Tsu Type
  Landing Forces Type Multiplier 		1.7
 
  		Toku Daihatsu 
Toku DLC + Panzer III [1]
Toku DLC + Panzer III J 
Infantry 
Infantry+Chi-Ha Kai  		1.2
DLC + T89 Tank 
Toku DLC + Ho-Ni Tank 
Toku DLC + Panzer III [1]
Toku DLC + Panzer III J 
Infantry 
Infantry+Chi-Ha Kai  		1.3 1.6
Toku DLC + Chi-Ha 
Toku DLC + Chi-Ha Kai [2]
T97 (Chi-Ha) 
T97 (Chi-Ha Kai) 
DLC + Panzer II  1.3 1.6
M4A1 DD 
Toku DLC + Chi-Ha Kai 
Toku DLC + Panzer III J 
T97 (Chi-Ha Kai) 
Infantry+Chi-Ha Kai  		1.2
Armed Daihatsu 
Soukoutei  		1.5 1.1
  Ka-Tsu Tank 
Ka-Tsu Tank Kai 
Ka-Mi Tank  1.7 1.5
Ka-Tsu Tank Kai [3]
Number Equipped 1 2 3
  Landing Forces Type Multiplier 1.85 1.45 1.2
   
Improvement
  Landing Craft &
  Ka-Tsu Tanks 
  		[1 + (Average DLC   /50) + (Average Ka-Tsu   /50)]N
  Ka-Mi Tank  1 + (Average   /30)
  Landing Forces
  1. ↑ 1.0 1.1 1.2 https://twitter.com/Divinity_123/status/1695813425660661965
  2. ↑ For example: 1 Chi-Ha  = no bonus, 2 Chi-Ha  = 1.6, 1 T89  + 1 Chi-Ha  = 2.08 (1.3x1.6)
  3. ↑ In this case the Ka-Tsu Kai count as two, 1 Ka-Tsu Kai = 1.2

Rations Bonuses

The developers have mentioned that   Rations 
 
  consumed by a girl "affect landing craft's morale"[1].

C1
Installation Type All installations[2]
Number Equipped Single Multiple
  Combat Ration  1.13 ??
Combat Ration (Special Onigiri)  ?? ??
Canned Saury  ?? ??
  1. ↑ https://twitter.com/KanColle_STAFF/status/715840109103484928
  2. ↑ https://twitter.com/hedgehog_hasira/status/1566086797343412224
Notes
  • A   Landing Craft might be required to be equipped on the attacking ship for this bonus to be applied.
  • As it is the only post-cap bonus common to all installations, it has a great potential.
  • Due to the limited nature of Rations, this bonus is mostly "Pay To Win", and so is not recommended.

Airstrike And Land-Base Bonus

For the damage formula, please refer to the LBAS and airstrike page. The multiplier is chosen randomly between two values. The chance is roughly 50%.

There are exceptions:

  • For   Torpedo Bomber:
    • The   torpedo stat is counted as 0 in airstrike,
    • The behavior is unclear for LBAS (the damage are overestimated).
  • For    Jets 
         :
    • There are inconsistencies with the bonuses.


[math]\displaystyle{ {\color{tomato}\text{Mod}_\text{Inst}} }[/math][9]
Installation (ID) Airstrike LBAS
Low mod High mod Low mod High mod
 
Isolated Island Princess (1671-1672) 		2
 
Artillery Imp (1665-1667) 		1.3? 1.7 1.6 2.5
 
"Old" Supply Depot Princesses (1653-1658) 		1.5 2.4 1.7 3.6?
 
"New" Supply Depot Princesses (B, C, D, ...) (ID>1658)
 
Harbour Summer Princess B (2023) 		? ? ? ?

Installation-Like Warships

This section is for special ships with installation-like behaviors, taking additional damage from anti-installation equipment.

  • Those bonuses are post-cap only, meaning none of the "anti-installation bonuses" previously mentioned are applied.
  • Be aware that the sample is limited (event only) so the information may be inaccurate and/or old[1].
Installation-like warships
C
Installation Type      Mod C Mod C
Anchorage Water Demon Vacation Mode Dock Princess Supply Depot Princess C
Vacation Mode
Number Equipped Single Multiple Single Multiple Single Multiple
Ships Nagato-class
Yamato-class 		1.2
  AA Shells 
 
  		1.45 1.3
  WG42 (Wurfgerät 42)  1.2 1.3 1.1 1.2 1.25 1.3
Type 4 Anti-Ground Rockets 
  		1.15 1.4 ? 1.2 1.4
 Other ASW Mortars 
  		1.1 ? ? 1.15 1.2
  Dive Bombers 1.4 1.75 1.1 1.1
  Jets 1.75
 Bomber  Seaplane Bombers/Fighters 1.1
  Landing Craft Type Multiplier 1.4 1.1 1.7
  Toku Daihatsu  1.15 1.2
DLC + T89 Tank 
Toku DLC + Ho-Ni Tank  		1.2 1.4 1.15 1.15 1.3 1.6
DLC + Panzer II  1.2 1.4 1.15 1.15 1.3 1.6
M4A1 DD  1.8 1.1 1.2
Armed Daihatsu 
Soukoutei  		1.2 1.1 1.5 1.1

Toku DLC + 11th Reg 
Toku DLC + Ho-Ni Tank 
Toku DLC + Panzer III 

1.4
  Ka-Mi Tank  2.4 1.35 1.2 1.2 1.7 1.5
Number Equipped 1 2 3
  Landing Forces Type Multiplier Unknown 3.15 2.35 1.2
  Type 97 Medium Tank New Turret (Chi-Ha Kai) 
Army Infantry Corps + Chi-Ha Kai  		1.2
Army Infantry Corps 
Army Infantry Corps + Chi-Ha Kai  		1.55
   
Improvement 		  Landing Craft &
  Ka-Tsu Tanks 
  		1 + (Average DLC   /50) + (Average Ka-Tsu   /50) [1 + (Average DLC   /50)
+ (Average Ka-Tsu   /50)]N
  Ka-Mi Tank  1 + (Average   /30)
  Landing Forces Unknown
  1. ↑ Updated the 08/09/2022 during the Summer 2022 Event [1].
  • The missing bonuses from new equipment can be extrapolated from the other installation bonuses.


Equipment Performance

The following table compares the individual performance of anti-installation gears:

  • The calculations only look at cases using a single anti-installation gear (all synergy/overlap of nonstackable bonuses are ignored),
  • The   firepower to reach the cap is calculated ignoring all other modifiers (engagement, formation, damage state...),
  • The A0 modifier is also ignored,
  • Post-cap modifiers are ignores (only relevant for Supply Depot Princess ),
  • The table works for all surface ships,
    • Carriers are ignored here,
    • 30   firepower needs to be added to submarines.

This table is only here to give the Big Picture regarding anti-installation equipment performances.

  • In any other situation, the table is invalided, notably when using more than one such equipment.

The Mod and Flat are respectively the total multiplicative bonuses and the flat bonuses given by the equipment.

  • Higher is better.
  • Note that some of them are simplified.

The "FP cap ☀/☾" columns indicate the final firepower stat (ship + equipment + fit bonuses + improvements) needed to reach the day or night cap with only the corresponding anti-installation gear equipped.

  • Lower is better.
Single Anti-Equipment Gear Effects
Soft-skinned  
Isolated Island Princess 		Pillboxes 
 
 
  		 
 
Harbour Summer/Holiday Princess
Bonuses FP caps Bonuses FP caps Bonuses FP caps Bonuses FP caps
Equipment Mod Flat ☀ ☾ Mod Flat ☀ ☾ Mod Flat ☀ ☾ Mod Flat ☀ ☾
  AA Shells 
 
  		2.5 0 88 144 1.75 0 126 206 1 0 220 360 1.75 0 126 206
  AP Shells 
 
  		1 0 220 360 1 0 220 360 1.85 0 119 195 1.3 0 169 277
 Bomber/  SPB/SPF 1.2 0 183 300 1 0 220 360 1.5 0 147 240 1.3 0 169 277
 WG42  1.3 75 112 219 1.4 75 104 204 1.6 75 91 178 1.4 75 104 204
  T4 Rockets  1.25 55 132 244 1.3 55 127 235 1.5 55 110 203 1.25 55 132 244
  T4 Rockets (CD)  1.25 80 112 224 1.3 80 108 215 1.5 80 93 187 1.25 80 112 224
 OtherASW Mortar  1.2 30 158 275 1.2 30 158 275 1.3 30 146 254 1.1 30 173 300
 OtherASW Mortar (CD)  1.2 60 133 250 1.2 60 133 250 1.3 60 123 231 1.1 60 145 273
  DLC  1.4 0 157 257 1.8 0 122 200 1.8 0 122 200 1.7 0 129 212
  DLC    1.68 0 131 214 2.16 0 102 167 2.16 0 102 167 2.04 0 108 176
  Toku DLC  1.61 0 137 224 2.07 0 106 174 2.07 0 106 174 2.04 0 108 176
  DLC + T89 Tank  2.1 0 105 171 2.16 0 102 167 2.7 0 81 133 2.72 0 81 132
  DLC + T89 Tank    2.52 0 87 143 2.592 0 85 139 3.24 0 68 111 3.264 0 67 110
  DLC + Panzer II  2.1 0 105 171 2.16 0 102 167 2.7 0 81 133 2.72 0 81 132
  Armed Daihatsu  1.54 0 143 257 2.34 0 94 200 2.34 0 94 200 2.55 0 86 212
  Soukoutei  1.54 0 143 257 2.34 0 94 200 2.34 0 94 200 2.55 0 86 212
  Toku DLC + Chi-Ha  1.96 28 98 169 2.52 28 76 132 2.52 28 76 132 2.38 28 81 139
  Toku DLC + Chi-Ha Kai  2.31 33 81 142 4.86 33 38 67 5.4 33 35 61 5.1 33 37 64
  M4A1 DD  2.156 35 86 151 4.536 35 41 72 5.04 35 37 64 4.76 35 39 68
  Toku DLC + 11th Reg  2.52 25 77 133 3.24 25 60 103 3.24 25 60 103 3.06 25 64 109
  Toku DLC + Ho-Ni Tank  4.914 67 30 58 5.0544 67 29 56 6.318 67 23 45 6.3648 67 23 45
  Toku DLC + Panzer III  4.347 25 45 77 4.4712 25 44 75 5.589 25 35 60 5.8752 25 33 57
  Toku DLC + Panzer III J  4.7817 25 41 70 8.04816 25 24 42 11.178 25 17 30 11.7504 25 17 29
  Ka-Mi Tank  1.5 0 147 240 2.4 0 92 150 2.4 0 92 150 2.8 0 79 129
  Ka-Mi Tank    1.995 0 110 180 3.192 0 69 113 3.192 0 69 113 3.724 0 59 97
 Ka-Tsu Tank  1.68 42 106 189 2.16 42 82 147 2.16 42 82 147 2.04 42 87 156
 Ka-Tsu Tank Kai  2.2176 70 66 129 3.2076 70 45 89 3.2076 70 45 89 3.366 70 43 85
 Infantry  4.0572 60 39 74 2.9808 60 54 101 3.726 60 43 81 3.9168 60 41 77
 T97 (Chi-Ha)  2.94 70 51 99 2.7 70 56 107 2.7 70 56 107 2.55 70 59 114
 T97 (Chi-Ha Kai)  4.851 120 13 42 7.29 120 9 28 8.1 120 8 25 7.65 120 8 27
 Infantry+Chi-Ha Kai  7.1407 130 8 27 8.5847 130 6 23 11.9232 130 5 16 12.5338 130 4 15

Additional Information

Landing Craft/Amphibious Vehicles Capable Ships

Ships that can equip Landing Craft / Amphibious Vehicles
Type Landing Craft   Both   &   Amphibious Vehicle  
DD                                            Kai Ni D      Kai Ni D      Kai Ni D          Kai Ni D      Kai Ni                
CL      Kai Ni D          Kai Ni Toku    
CAV  Kai Ni Toku
(F)BB(V)    Kai Ni Juu    Kai Ni C  
CVL      Kai Ni Sen
AV                  Kai Ni Toku
AO      
LHA          
SS(V) All
RE

  Soukoutei (Armored Boat Class) : Shinshuu Maru 
 

   Ka-Tsu tanks 
 : I-36 
  · I-41 
  · I-47 Kai  · I-58 Kai 

[edit]

Attack Animation

Some anti-installation equipment will add attack animation when targeting installation. There is no relation between the presence/absence of animation, and the presence/absence of anti-installation damage bonuses.

Equipment Animation
Artillery  / Other
  Anti-ground Rocket Launchers 
 
 
 Other ASW Mortar 
  		 
  Landing Force

Up to 2 tanks are shown in the animation
(see below with priority from top to bottom)

  T97 Medium Tank Chi-Ha Kai 

 Army Infantry Corps + Chi-Ha Kai 

 
  T97 Medium Tank Chi-Ha   
  Army Infantry Corps  (empty)
  Landing Craft /   Amphibious Vehicle
  M4A1 DD   
  Toku DLC + Ho-Ni tank 

 Toku dlc+Chi-Ha/Kai 
 

 
  Toku DLC + 11th Reg   
  Soukoutei    (round trip)
  Armed Daihatsu    (round trip)
  Ka-Tsu tank Kai   
  Ka-Tsu tank   
  Ka-Mi tank   
  Toku DLC + Panzer III 

 Toku DLC + Panzer III J 

 
  DLC + Panzer II   
  DLC + T89 tank 

 Transport DLC 
 

 
Unused (Transport DLC)  
Notes
  • The animations for "artillery", "landing craft", and "airstrike", are compatible.
  • If multiple landing craft are equipped on the same ship, only one animation will be shown (the above table is sorted in priority order).
  • A variation of the animation of the   Ka-Tsu tanks 
          is also played against Atoll Nodes when applicable.
  • The animation of the  Armed Armed Boats 
          is also played against PT-Imp  when equiped.
  • These animations will be overridden by:
    • Artillery spotting,
    • Night cut-in.

See Also

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