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{{Under Construction}}
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{{PortMechanicsPortal}}
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This page displays existing visible equipment stat bonuses for different ships.
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[[file:Fit_bonus_example.png|thumb|right|One additional Firepower gained from equipping a 12.7cm Type C Gun Mount]]
−
==[[List of Seaplanes by stats|Seaplanes]]==
+
Equipment Bonuses refer to specific ship-equipment combinations that trigger a modification in some specific '''[[Stats]]''' with values referred to as "Fit Bonuses".
−
==={{EquipmentLink|S9 Osprey}}===
+
*These are displayed in the game by a {{TextGlow|'''↑+'''|black|text-colour=cyan|glow-size=1px}} or {{color|red|'''↓-'''}} symbol in front of each applicable stat.
−
{{:S9 Osprey/Bonuses}}
+
*Some of those bonuses may:
−
==Searchlights==
+
**Synergize, being greater when being combined with other equipment,
−
==={{EquipmentLink|Searchlight}}===
+
**Be affected by [[Improvement#Visible Fit Bonuses|improvements]], the number of stars {{Star}} improving the bonuses.
−
{{:Searchlight/Bonuses}}
+
 
−
==={{EquipmentLink|Type 96 150cm Searchlight}}===
+
*These bonuses must not be confused with the '''"[[Hidden Fit Bonuses]]"''', to Accuracy and Firepower.
−
{{:Type 96 150cm Searchlight/Bonuses}}
+
**To differentiate with "hidden Fit Bonuses", they are also referred to as '''"Visible Fit Bonuses"'''.
−
==See Also==
+
 
 +
=Fit Bonus Specifics=
 +
Although displayed in the game, some Fit Bonuses have an erroneous effect or outright do not work.
 +
 
 +
Visible fits will always work for raw stat requirements such as for [[Expeditions]], but some may not work as intended in formulas used in sorties.
 +
 
 +
As of 28 April 2022, the following Fit Bonuses present issues.
 +
 
 +
==Functional==
 +
These Fit Bonuses work in every scenario:
 +
* {{Evasion}} '''Evasion'''.
 +
* {{Armor}} '''Armor'''.
 +
* {{Speed}} '''Speed'''.
 +
* {{Range}} '''Range'''.
 +
**"[[Combat/Day Battle#First_Shelling_Phase|Longest Range]]" is only displayed as "Very Long Range", but still works as intended.
 +
 
 +
===Formulas===
 +
* {{Firepower}} '''Day Surface Shelling''' - All {{Firepower}} Firepower fits work as intended.
 +
* {{Firepower}}{{Torpedo}} '''Night Surface Shelling''' - All fits work as intended.
 +
** Especially for [[Ark Royal]] and {{Equipment/Link|Swordfish|Swordfish Mk.II (Skilled)|Swordfish Mk.III (Skilled)|text=Swordfish-series}}, the torpedo stat does not work.
 +
* {{Firepower}}{{Torpedo}}{{Dive}} '''Carrier Shelling''' - All fit sources work as intended. The {{Torpedo}} Torpedo fit will now be included for shelling power calculation <!--04/08/2021-->
 +
* {{Torpedo}}{{Dive}} '''Airstrike''' - The fits given by the {{Equipment/Link|Skilled Deck Personnel + Aviation Maintenance Hands}} works as intended.
 +
* {{Torpedo}} '''Torpedo Attacks''' - All {{Torpedo}} Torpedo fits work as intended.
 +
** This includes fits provided by sources that are not torpedoes, such as seaplanes and lookouts.
 +
 
 +
==Partially functional==
 +
These Fit Bonuses have at least one situation in which they don't work as intended:
 +
 
 +
* {{LOS}} '''LoS''': Bonuses count as ship base LoS and not equipment, for routing purposes. No effect for artillery spotting.<ref>https://twitter.com/Matsu_class_DD/status/1245457218956226560</ref>
 +
 
 +
* {{Acc}} '''Accuracy''':
 +
** Works for shelling phases<ref>https://twitter.com/noratako5/status/1252194958456483840</ref>.
 +
** Does not work for [[Support Expedition]]<ref>https://twitter.com/chang1124414276/status/1242332458936197120</ref>.
 +
 
 +
===Formulas===
 +
* {{ASW}} '''Anti-Submarine Shelling''': All {{ASW}} ASW fits work as intended, both towards damage and OASW ship stat thresholds.
 +
** This includes fits provided by sources that don't count towards ASW damage, such as Reconnaissance Seaplanes & Carrier-Based Fighter Aircraft.
 +
** '''Does not count''' for the following cases:
 +
*** Equipment ASW for equipment stat [[OASW]] thresholds. E.g. A plane with 6 base ASW & a 1 ASW fit does not count as a 7asw plane.
 +
*** Damage of [[Night_Battle#Carrier_Night_Attacks|Carrier Night Attacks]] [https://twitter.com/SZRandomness/status/1144649656091021312].
 +
*** Damage of [[Support Expedition|ASW Support]] [https://twitter.com/myteaGuard/status/1445411574655578116].
 +
*** The [[Anti-Submarine_Warfare#Damage_Calculation|Armor Penetration]] of depth charge [https://twitter.com/yukicacoon/status/1555201349817876480].
 +
 
 +
* {{AA}} '''Anti-Air''': Works for [[Aerial_Combat#Stage_2_-_Fleet_Anti-Air_Defense|Air Defense Phase]].
 +
** However bonus granted to aircraft does not contribute to Air Power<ref>https://twitter.com/Grunilg/status/1555148831146352641?t=KZISfW3SJ5W0kimXEB-VQQ&s=19</ref>.
 +
 
 +
* {{Torpedo}} '''Airstrike''' - The fits given by aircraft affect only one plane and do not works in some situation.
 +
* {{Dive}} '''Airstrike''' - Does not works.
 +
 
 +
* {{Firepower}}{{Torpedo}}{{Dive}}{{ASW}} '''Night Carrier Cut-in Attack''': Only of the {{Torpedo}}{{Dive}} fits of {{Equipment/Link|Skilled Deck Personnel + Aviation Maintenance Hands}} work<ref>https://twitter.com/yukicacoon/status/1566971952576995328?s=20&t=YjkxkRBOxuhGEbss63ogaA</ref><ref>https://twitter.com/shiro_sh39/status/1255895548898361346</ref><ref>https://twitter.com/SZRandomness/status/1144649656091021312</ref>.
 +
** Additionally, any base {{Firepower}}{{Torpedo}}{{Dive}} granted by equipment other than night plane provide not increase damage for this formula<ref>https://twitter.com/SZRandomness/status/1144649656091021312</ref><ref>https://twitter.com/yukicacoon/status/1566971952576995328?s=20&t=YjkxkRBOxuhGEbss63ogaA</ref>.
 +
 
 +
=Explanation=
 +
Fit Bonuses are not considered a part of an equipment's stat, and are instead added to the ship's actual stat directly. This is what leads to inconsistencies in the formulas.
 +
 
 +
The displayed value in a given stat is given by:
 +
 
 +
<math>\text{Final Value} = \text{Base Stat} + \text{Equipment Stat} + \text{Fit Bonus}</math>
 +
 
 +
'''Where:'''
 +
* Final Value is the displayed Value in the ship card.
 +
* Base Stat is the stat without '''any equipment'''.
 +
* Equipment Stat is the equipments '''displayed stat'''.
 +
* Fit Bonus is the added value to the stat by '''fits'''.
 +
 
 +
Some formulas, such as {{Firepower}} Surface Shelling, {{Torpedo}}Opening/Closing Torpedo Salvos, and {{Firepower}} Carrier Shelling use the Final Value. In those cases, the fit bonuses work as intended.
 +
 
 +
However, other formulas break down the stats for various reasons (mainly for applying different weighting to equipment, as in {{ASW}}ASW and {{AA}}Anti-Air formulas, or using other parameters like the {{Acc}}Accuracy formula), and instead use '''Base Stat''' and the sum of '''Equipment Stats''' instead. In those cases, '''Fit Bonus''' is not used anywhere in the formula, and therefore does not work.
 +
 
 +
==Airstrike==
 +
There are two completely independent systems for {{Torpedo}} torpedo and {{Dive}} dive bombing fit bonuses affecting airstrike damage:
 +
*The fits given by the {{Equipment/Link|Skilled Deck Personnel + Aviation Maintenance Hands|text=SDP+}},
 +
*The fits given by aircraft equipment.
 +
As they are independent the effects of both systems stack.
 +
 
 +
===Skilled Deck Personnel + Aviation Maintenance Hands===
 +
* {{Torpedo}} fits affect equally all {{Torpedo Bomber}} equipped on the ship,
 +
* {{Dive}} fits affect equally all {{Dive Bomber}}, {{JetFighterBomber2}}/{{JetFighterBomber1}} and {{SPB}} equipped on the ship,
 +
** The fits does work during the [[Jet Assault]].
 +
 
 +
===Planes===
 +
If one or multiple planes have {{Torpedo}} fits, only one is chosen based on a priority order. The fits given by this plane are then applied to the equipped attack plane ({{Torpedo Bomber}}/{{Dive Bomber}}/{{JetFighterBomber2}}/{{JetFighterBomber1}}/{{SPB}}) with the highest {{Torpedo}}/{{Dive}}.
 +
*Note that if the fit is +0{{Torpedo}} for the current ship it will still be chosen and then give 0{{Torpedo}}.
 +
* If there is a tie in the highest {{Torpedo}}/{{Dive}} the plane with the highest slot size is chosen. If there is also a tie in slot size then the first plane in the equipment order is chosen.
 +
** The fits does '''not''' work during the [[Jet Assault]].
 +
The priority list
 +
{|class="wikitable"
 +
!Priority!!Planes!!Note
 +
|-
 +
|1||{{SPR}} [[Type 0 Small Reconnaissance Seaplane]]<br>{{SPR}} [[Type 0 Small Reconnaissance Seaplane (Skilled)]]||Stackable
 +
|-
 +
|2||{{SPR}} [[Type 0 Reconnaissance Seaplane Model 11B]]<br>{{SPR}} [[Type 0 Reconnaissance Seaplane Model 11B (Skilled)]]||One-time
 +
|-
 +
|3||{{SPR}} [[Shiun (Skilled)]]||Stackable
 +
|-
 +
|4||{{SPR}} [[Shiun]]||Stackable
 +
|-
 +
|5||{{SPB}} [[Swordfish Mk.III Kai (Seaplane Model)]]||One-time
 +
|-
 +
|6||{{SPB}} [[Swordfish Mk.III Kai (Seaplane Model/Skilled)]]||One-time
 +
|-
 +
|7||{{Torpedo Bomber}} [[Tenzan Model 12A]]||One-time
 +
|-
 +
|8||{{Night Torpedo Bomber}} [[Tenzan Model 12A Kai (w/ Type 6 Airborne Radar Kai)]]||One-time
 +
|-
 +
|9||{{Night Torpedo Bomber}} [[Tenzan Model 12A Kai (Skilled w/ Type 6 Airborne Radar Kai)]]||One-time
 +
|-
 +
|10||{{Torpedo Bomber}} [[Barracuda Mk.III]]||Stackable
 +
|-
 +
|11||{{Torpedo Bomber}} [[Barracuda Mk.II]]||Stackable
 +
|}
 +
;Notes
 +
* If multiple planes with the same priority order are equipped, then their bonuses stack.
 +
** If a bonuse is one-time it cannot stack.
 +
* The priority of the {{Night Torpedo Bomber}} [[Tenzan Model 12A Kai (Skilled w/ Type 6 Airborne Radar Kai)]] is not confirmed due to a lack of data.
 +
 
 +
;Example
 +
# For a [[Shoukaku Kai Ni A]] equipped with:
 +
#* {{Torpedo Bomber}} [[Tenzan Model 12A]] with +1{{Torpedo}} fits
 +
#* {{Night Torpedo Bomber}} [[Tenzan Model 12A Kai (w/ Type 6 Airborne Radar Kai)]] with +2{{Torpedo}} fits
 +
#* The resulting fits will be +1{{Torpedo}} because the {{Torpedo Bomber}} [[Tenzan Model 12A]] has a higher priority.
 +
# For a [[Gotland Andra]] equipped with:
 +
#* {{SPR}} [[Shiun (Skilled)]] with +0{{Torpedo}} fits
 +
#* {{SPB}} [[Swordfish Mk.III Kai (Seaplane Model/Skilled)]] with +3{{Torpedo}} fits
 +
#* The resulting fits will be +0{{Torpedo}} because the {{SPR}} [[Shiun (Skilled)]] has a higher priority.
 +
# For a [[I-14 Kai]] equipped with:
 +
#* {{SPR}} [[Type 0 Small Reconnaissance Seaplane (Skilled)]] with +3{{Torpedo}} fits
 +
#* {{SPR}} [[Type 0 Small Reconnaissance Seaplane]] with +1{{Torpedo}} fits
 +
#* {{SPB}} [[Swordfish Mk.III Kai (Seaplane Model/Skilled)]] with +0{{Torpedo}} fits
 +
#* The resulting fits will be +4{{Torpedo}} because the {{SPR}} [[Type 0 Small Reconnaissance Seaplane]] and the {{SPR}} [[Type 0 Small Reconnaissance Seaplane (Skilled)]] have the same priority.
 +
 
 +
''Source: [https://x.com/Divinity_123/status/1854937456086311200]
 +
 
 +
==Fixed==
 +
* {{LOS}} '''LoS''': [[SG Radar (Initial Model)]] did not contribute for any calculation<ref>https://twitter.com/CC_jabberwock/status/1089154587628466177</ref>.
 +
** It was fixed with the introduction of the [[SG Radar (Late Model)]].
 +
* {{ASW}} '''ASW''': ''28/09/2021'' Global ASW bonus fixes<ref>https://discord.gg/RtSadWM https://discord.com/channels/118339803660943369/425302689887289344/892404611137302538</ref>.
 +
* {{AA}} '''AA''': [[Game Updates/2022/August 4th|04/08/2022]] update
 +
* {{Speed}} '''Speed''': The [[Houshou|Houshou Kai Ni/Sen]] bonus didn't work properly on implementation.
 +
 
 +
=Display Bugs=
 +
Some bonus preview values, as displayed with {{TextGlow|'''↑+'''|black|text-colour=cyan|glow-size=1px}} on the equipment card, are inconsistent with the ship's stat totals after equipping the equipment. In such cases, the ship's stat totals reflect the actual correct values used in battle calculations<ref>https://twitter.com/CC_jabberwock/status/1756634228954112168</ref>, whereas the preview values are visual bugs.
 +
 
 +
{|class="wikitable mw-collapsible mw-collapsed" style="width:100%; text-align: center; vertical-align: middle;"
 +
! colspan="100" | {{GreenGunDP}}{{EquipmentLink|8cm High-angle Gun}}
 +
|-
 +
! style="width: 20%;" | Ship
 +
! style="width: 20%;" | Extra Requirement
 +
! style="width: 5%; background-color: lightcoral;" | {{Firepower}}
 +
! style="width: 5%; background-color: lightskyblue;" | {{Torpedo}}
 +
! style="width: 5%; background-color: sandybrown;" | {{AA}}
 +
! style="width: 5%; background-color: #9C8FEE;" | {{ASW}}
 +
! style="width: 5%; background-color: #7fffd4;" | {{LOS}}
 +
! style="width: 5%; background-color: #F2E279;" | {{Armor}}
 +
! style="width: 5%; background-color: darkseagreen" | {{Accuracy}}
 +
! style="width: 5%; background-color: violet;" | {{Evasion}}
 +
! style="width: 20%;" | Note
 +
|-
 +
! colspan="100" | Preview Values
 +
|-
 +
! {{ShipLink|Mogami Kai Ni|Mogami Kai Ni Toku|text=Mogami Kai Ni /Toku}}
 +
| style="text-align:left;" | -
 +
| +1 ||  || +4 ||  ||  ||  ||  || +3
 +
| rowspan="3" style="text-align:left;" | ''(bug introduced 2024-01-25)''
 +
|-
 +
! {{ShipLink|Mikuma Kai Ni|Mikuma Kai Ni Toku|text=Mikuma Kai Ni /Toku}}
 +
| style="text-align:left;" | -
 +
|  ||  || +2 ||  ||  ||  ||  || +1
 +
|-
 +
! {{ShipLink|Noshiro Kai Ni}}<br>{{ShipLink|Yahagi Kai Ni|Yahagi Kai Ni B|text=Yahagi Kai Ni /B}}
 +
| style="text-align:left;" | -
 +
|  ||  || 0 ||  ||  ||  ||  || 0
 +
|-
 +
! colspan="100" | Actual Values
 +
|-
 +
! {{ShipLink|Mogami Kai Ni|Mogami Kai Ni Toku|text=Mogami Kai Ni /Toku}}<br>{{ShipLink|Mikuma Kai Ni|Mikuma Kai Ni Toku|text=Mikuma Kai Ni /Toku}}
 +
| style="text-align:left;" | -
 +
| +1 ||  || +2 ||  ||  ||  ||  || +2
 +
| style="text-align:left;" |
 +
|-
 +
! {{ShipLink|Noshiro Kai Ni}}<br>{{ShipLink|Yahagi Kai Ni|Yahagi Kai Ni B|text=Yahagi Kai Ni /B}}
 +
| style="text-align:left;" | -
 +
|  ||  || +2 ||  ||  ||  ||  || +1
 +
| style="text-align:left;" |
 +
|}
 +
 
 +
{|class="wikitable mw-collapsible mw-collapsed" style="width:100%; text-align: center; vertical-align: middle;"
 +
! colspan="100" | {{GreenGunDP}}{{EquipmentLink|8cm High-angle Gun Kai + Additional Machine Guns}}
 +
|-
 +
! style="width: 20%;" | Ship
 +
! style="width: 20%;" | Extra Requirement
 +
! style="width: 5%; background-color: lightcoral;" | {{Firepower}}
 +
! style="width: 5%; background-color: lightskyblue;" | {{Torpedo}}
 +
! style="width: 5%; background-color: sandybrown;" | {{AA}}
 +
! style="width: 5%; background-color: #9C8FEE;" | {{ASW}}
 +
! style="width: 5%; background-color: #7fffd4;" | {{LOS}}
 +
! style="width: 5%; background-color: #F2E279;" | {{Armor}}
 +
! style="width: 5%; background-color: darkseagreen" | {{Accuracy}}
 +
! style="width: 5%; background-color: violet;" | {{Evasion}}
 +
! style="width: 20%;" | Note
 +
|-
 +
! colspan="100" | Preview Values
 +
|-
 +
! {{ShipLink|Mogami Kai Ni|Mogami Kai Ni Toku|text=Mogami Kai Ni /Toku}}
 +
| style="text-align:left;" | -
 +
| +2 ||  || +7 ||  ||  ||  ||  || +5
 +
| rowspan="3" style="text-align:left;" | ''(bug introduced 2024-01-25)''
 +
|-
 +
! {{ShipLink|Mikuma Kai Ni|Mikuma Kai Ni Toku|text=Mikuma Kai Ni /Toku}}
 +
| style="text-align:left;" | -
 +
| +1 ||  || +5 ||  ||  ||  ||  || +3
 +
|-
 +
! {{ShipLink|Noshiro Kai Ni}}<br>{{ShipLink|Yahagi Kai Ni|Yahagi Kai Ni B|text=Yahagi Kai Ni /B}}
 +
| style="text-align:left;" | -
 +
| +1 ||  || +3 ||  ||  ||  ||  || +2
 +
|-
 +
! colspan="100" | Actual Values
 +
|-
 +
! {{ShipLink|Mogami Kai Ni|Mogami Kai Ni Toku|text=Mogami Kai Ni /Toku}}<br>{{ShipLink|Mikuma Kai Ni|Mikuma Kai Ni Toku|text=Mikuma Kai Ni /Toku}}
 +
| style="text-align:left;" | -
 +
| +2 ||  || +5 ||  ||  ||  ||  || +4
 +
| style="text-align:left;" |
 +
|-
 +
! {{ShipLink|Noshiro Kai Ni}}<br>{{ShipLink|Yahagi Kai Ni|Yahagi Kai Ni B|text=Yahagi Kai Ni /B}}
 +
| style="text-align:left;" | -
 +
| +1 ||  || +5 ||  ||  ||  ||  || +3
 +
| style="text-align:left;" |
 +
|}
 +
 
 +
{|class="wikitable mw-collapsible mw-collapsed" style="width:100%; text-align: center; vertical-align: middle;"
 +
! colspan="100" | {{Amphibious Tank}}{{EquipmentLink|Special Type 4 Amphibious Tank}}
 +
|-
 +
! style="width: 20%;" | Ship
 +
! style="width: 20%;" | Extra Requirement
 +
! style="width: 5%; background-color: lightcoral;" | {{Firepower}}
 +
! style="width: 5%; background-color: lightskyblue;" | {{Torpedo}}
 +
! style="width: 5%; background-color: sandybrown;" | {{AA}}
 +
! style="width: 5%; background-color: #9C8FEE;" | {{ASW}}
 +
! style="width: 5%; background-color: #7fffd4;" | {{LOS}}
 +
! style="width: 5%; background-color: #F2E279;" | {{Armor}}
 +
! style="width: 5%; background-color: darkseagreen" | {{Accuracy}}
 +
! style="width: 5%; background-color: violet;" | {{Evasion}}
 +
! style="width: 20%;" | Note
 +
|-
 +
! colspan="100" | Preview Values
 +
|-
 +
! rowspan="3" | All [[SS]]/[[SSV]]
 +
| style="text-align:left;" | '''(★2+) + {{EquipmentLink|Special Type 4 Amphibious Tank Kai|text=★2+ Special Type 4 Amphibious Tank Kai}}'''
 +
| +1 ||  ||  ||  ||  ||  ||  ||
 +
| rowspan="3" style="text-align:left;" | ''(bug introduced 2024-02-29)''<br>Additionally to other bonuses omitted from this table
 +
|-
 +
| style="text-align:left;" | '''(★4+) + {{EquipmentLink|Special Type 4 Amphibious Tank Kai|text=★4+ Special Type 4 Amphibious Tank Kai}}'''
 +
|  || +1 ||  ||  ||  ||  ||  ||
 +
|-
 +
| style="text-align:left;" | '''(★8+) + {{EquipmentLink|Special Type 4 Amphibious Tank Kai|text=★8+ Special Type 4 Amphibious Tank Kai}}'''
 +
| +1 ||  ||  ||  ||  ||  ||  ||
 +
|-
 +
! colspan="100" | Actual Values
 +
|-
 +
! rowspan="3" | All [[SS]]/[[SSV]]
 +
| style="text-align:left;" | '''(★2+) + {{EquipmentLink|Special Type 4 Amphibious Tank Kai|text=★2+ Special Type 4 Amphibious Tank Kai}}'''
 +
| 0 ||  ||  ||  ||  ||  ||  ||
 +
| style="text-align:left;" |
 +
|-
 +
| style="text-align:left;" | '''(★4+) + {{EquipmentLink|Special Type 4 Amphibious Tank Kai|text=★4+ Special Type 4 Amphibious Tank Kai}}'''
 +
|  || 0 ||  ||  ||  ||  ||  ||
 +
| rowspan="2" style="text-align:left;" | Unconfirmable in-game, but suspected based on ★2
 +
|-
 +
| style="text-align:left;" | '''(★8+) + {{EquipmentLink|Special Type 4 Amphibious Tank Kai|text=★8+ Special Type 4 Amphibious Tank Kai}}'''
 +
| 0 ||  ||  ||  ||  ||  ||  ||
 +
|}
 +
 
 +
=References=
 +
<references/>
 +
 
 +
=See Also=
 +
*[[Stats]]
 
*[https://docs.google.com/spreadsheets/d/1bInH11S_xKdaKP754bB7SYh-di9gGzcXkiQPvGuzCpg "Equipment visible bonus" spreadsheet]
 
*[https://docs.google.com/spreadsheets/d/1bInH11S_xKdaKP754bB7SYh-di9gGzcXkiQPvGuzCpg "Equipment visible bonus" spreadsheet]
 
*[[Combat/Overweight Penalty and Fit Gun Bonus]]
 
*[[Combat/Overweight Penalty and Fit Gun Bonus]]
 +
 +
{{Mechanics}}
 +
{{Equipmentlist}}

Latest revision as of 22:18, 15 November 2024

Home Port's Mechanics Portal
Ship Equipment
Marriage · Morale and Fatigue · Gifting · Supply
Repairs · Remodel · Modernization · Construction 		Development · Improvement · Fit Bonuses
Speed · Range · Plane Proficiency
Stats · Resources · Experience and Rank · Ranking


One additional Firepower gained from equipping a 12.7cm Type C Gun Mount

Equipment Bonuses refer to specific ship-equipment combinations that trigger a modification in some specific Stats with values referred to as "Fit Bonuses".

  • These are displayed in the game by a ↑+ or ↓- symbol in front of each applicable stat.
  • Some of those bonuses may:
    • Synergize, being greater when being combined with other equipment,
    • Be affected by improvements, the number of stars Improved improving the bonuses.
  • These bonuses must not be confused with the "Hidden Fit Bonuses", to Accuracy and Firepower.
    • To differentiate with "hidden Fit Bonuses", they are also referred to as "Visible Fit Bonuses".

Fit Bonus Specifics

Although displayed in the game, some Fit Bonuses have an erroneous effect or outright do not work.

Visible fits will always work for raw stat requirements such as for Expeditions, but some may not work as intended in formulas used in sorties.

As of 28 April 2022, the following Fit Bonuses present issues.

Functional

These Fit Bonuses work in every scenario:

  • Evasion Evasion.
  • Armor Armor.
  • Speed Speed.
  • Range Range.
    • "Longest Range" is only displayed as "Very Long Range", but still works as intended.

Formulas

  • Firepower Day Surface Shelling - All Firepower Firepower fits work as intended.
  • FirepowerTorpedo Attack Night Surface Shelling - All fits work as intended.
  • FirepowerTorpedo AttackDive Bomber Attack Carrier Shelling - All fit sources work as intended. The Torpedo Attack Torpedo fit will now be included for shelling power calculation
  • Torpedo AttackDive Bomber Attack Airstrike - The fits given by the Skilled Deck Personnel + Aviation Maintenance HandsSkilled Deck Personnel + Aviation Maintenance Hands works as intended.
  • Torpedo Attack Torpedo Attacks - All Torpedo Attack Torpedo fits work as intended.
    • This includes fits provided by sources that are not torpedoes, such as seaplanes and lookouts.

Partially functional

These Fit Bonuses have at least one situation in which they don't work as intended:

  • Line of Sight LoS: Bonuses count as ship base LoS and not equipment, for routing purposes. No effect for artillery spotting.[1]

Formulas

  • Anti-Submarine Warfare Anti-Submarine Shelling: All Anti-Submarine Warfare ASW fits work as intended, both towards damage and OASW ship stat thresholds.
    • This includes fits provided by sources that don't count towards ASW damage, such as Reconnaissance Seaplanes & Carrier-Based Fighter Aircraft.
    • Does not count for the following cases:
  • Anti-Air Anti-Air: Works for Air Defense Phase.
    • However bonus granted to aircraft does not contribute to Air Power[4].
  • Torpedo Attack Airstrike - The fits given by aircraft affect only one plane and do not works in some situation.
  • Dive Bomber Attack Airstrike - Does not works.

Explanation

Fit Bonuses are not considered a part of an equipment's stat, and are instead added to the ship's actual stat directly. This is what leads to inconsistencies in the formulas.

The displayed value in a given stat is given by:

[math]\displaystyle{ \text{Final Value} = \text{Base Stat} + \text{Equipment Stat} + \text{Fit Bonus} }[/math]

Where:

  • Final Value is the displayed Value in the ship card.
  • Base Stat is the stat without any equipment.
  • Equipment Stat is the equipments displayed stat.
  • Fit Bonus is the added value to the stat by fits.

Some formulas, such as Firepower Surface Shelling, Torpedo AttackOpening/Closing Torpedo Salvos, and Firepower Carrier Shelling use the Final Value. In those cases, the fit bonuses work as intended.

However, other formulas break down the stats for various reasons (mainly for applying different weighting to equipment, as in Anti-Submarine WarfareASW and Anti-AirAnti-Air formulas, or using other parameters like the AccuracyAccuracy formula), and instead use Base Stat and the sum of Equipment Stats instead. In those cases, Fit Bonus is not used anywhere in the formula, and therefore does not work.

Airstrike

There are two completely independent systems for Torpedo Attack torpedo and Dive Bomber Attack dive bombing fit bonuses affecting airstrike damage:

  • The fits given by the SDP+Skilled Deck Personnel + Aviation Maintenance Hands,
  • The fits given by aircraft equipment.

As they are independent the effects of both systems stack.

Skilled Deck Personnel + Aviation Maintenance Hands

  • Torpedo Attack fits affect equally all Torpedo Bomber equipped on the ship,
  • Dive Bomber Attack fits affect equally all Dive Bomber, JetFighterBomber2.png/JetFighterBomber1.png and Seaplane BomberBomber equipped on the ship,

Planes

If one or multiple planes have Torpedo Attack fits, only one is chosen based on a priority order. The fits given by this plane are then applied to the equipped attack plane (Torpedo Bomber/Dive Bomber/JetFighterBomber2.png/JetFighterBomber1.png/Seaplane BomberBomber) with the highest Torpedo Attack/Dive Bomber Attack.

  • Note that if the fit is +0Torpedo Attack for the current ship it will still be chosen and then give 0Torpedo Attack.
  • If there is a tie in the highest Torpedo Attack/Dive Bomber Attack the plane with the highest slot size is chosen. If there is also a tie in slot size then the first plane in the equipment order is chosen.

The priority list

Priority Planes Note
1 Reconnaissance SeaplaneRecon Type 0 Small Reconnaissance Seaplane
Reconnaissance SeaplaneRecon Type 0 Small Reconnaissance Seaplane (Skilled)		 Stackable
2 Reconnaissance SeaplaneRecon Type 0 Reconnaissance Seaplane Model 11B
Reconnaissance SeaplaneRecon Type 0 Reconnaissance Seaplane Model 11B (Skilled)		 One-time
3 Reconnaissance SeaplaneRecon Shiun (Skilled) Stackable
4 Reconnaissance SeaplaneRecon Shiun Stackable
5 Seaplane BomberBomber Swordfish Mk.III Kai (Seaplane Model) One-time
6 Seaplane BomberBomber Swordfish Mk.III Kai (Seaplane Model/Skilled) One-time
7 Torpedo Bomber Tenzan Model 12A One-time
8 Night Torpedo Bomber Tenzan Model 12A Kai (w/ Type 6 Airborne Radar Kai) One-time
9 Night Torpedo Bomber Tenzan Model 12A Kai (Skilled w/ Type 6 Airborne Radar Kai) One-time
10 Torpedo Bomber Barracuda Mk.III Stackable
11 Torpedo Bomber Barracuda Mk.II Stackable
Notes
Example
  1. For a Shoukaku Kai Ni A equipped with:
  2. For a Gotland Andra equipped with:
  3. For a I-14 Kai equipped with:

Source: [4]

Fixed

Display Bugs

Some bonus preview values, as displayed with ↑+ on the equipment card, are inconsistent with the ship's stat totals after equipping the equipment. In such cases, the ship's stat totals reflect the actual correct values used in battle calculations[12], whereas the preview values are visual bugs.

High-Angle Gun8cm High-angle Gun8cm High-angle Gun
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
Preview Values
Mogami Kai Ni /TokuMogami Kai Ni
Mogami Kai Ni Toku 		- +1 +4 +3 (bug introduced 2024-01-25)
Mikuma Kai Ni /TokuMikuma Kai Ni
Mikuma Kai Ni Toku 		- +2 +1
Noshiro Kai NiNoshiro Kai Ni
Yahagi Kai Ni /BYahagi Kai Ni
Yahagi Kai Ni B 		- 0 0
Actual Values
Mogami Kai Ni /TokuMogami Kai Ni
Mogami Kai Ni Toku
Mikuma Kai Ni /TokuMikuma Kai Ni
Mikuma Kai Ni Toku 		- +1 +2 +2
Noshiro Kai NiNoshiro Kai Ni
Yahagi Kai Ni /BYahagi Kai Ni
Yahagi Kai Ni B 		- +2 +1
High-Angle Gun8cm High-angle Gun Kai + Additional Machine Guns8cm High-angle Gun Kai + Additional Machine Guns
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
Preview Values
Mogami Kai Ni /TokuMogami Kai Ni
Mogami Kai Ni Toku 		- +2 +7 +5 (bug introduced 2024-01-25)
Mikuma Kai Ni /TokuMikuma Kai Ni
Mikuma Kai Ni Toku 		- +1 +5 +3
Noshiro Kai NiNoshiro Kai Ni
Yahagi Kai Ni /BYahagi Kai Ni
Yahagi Kai Ni B 		- +1 +3 +2
Actual Values
Mogami Kai Ni /TokuMogami Kai Ni
Mogami Kai Ni Toku
Mikuma Kai Ni /TokuMikuma Kai Ni
Mikuma Kai Ni Toku 		- +2 +5 +4
Noshiro Kai NiNoshiro Kai Ni
Yahagi Kai Ni /BYahagi Kai Ni
Yahagi Kai Ni B 		- +1 +5 +3
Amphibious VehicleSpecial Type 4 Amphibious TankSpecial Type 4 Amphibious Tank
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
Preview Values
All SS/SSV (★2+) + ★2+ Special Type 4 Amphibious Tank KaiSpecial Type 4 Amphibious Tank Kai +1 (bug introduced 2024-02-29)
Additionally to other bonuses omitted from this table
(★4+) + ★4+ Special Type 4 Amphibious Tank KaiSpecial Type 4 Amphibious Tank Kai +1
(★8+) + ★8+ Special Type 4 Amphibious Tank KaiSpecial Type 4 Amphibious Tank Kai +1
Actual Values
All SS/SSV (★2+) + ★2+ Special Type 4 Amphibious Tank KaiSpecial Type 4 Amphibious Tank Kai 0
(★4+) + ★4+ Special Type 4 Amphibious Tank KaiSpecial Type 4 Amphibious Tank Kai 0 Unconfirmable in-game, but suspected based on ★2
(★8+) + ★8+ Special Type 4 Amphibious Tank KaiSpecial Type 4 Amphibious Tank Kai 0

References

  1. ↑ https://twitter.com/Matsu_class_DD/status/1245457218956226560
  2. ↑ https://twitter.com/noratako5/status/1252194958456483840
  3. ↑ https://twitter.com/chang1124414276/status/1242332458936197120
  4. ↑ https://twitter.com/Grunilg/status/1555148831146352641?t=KZISfW3SJ5W0kimXEB-VQQ&s=19
  5. ↑ https://twitter.com/yukicacoon/status/1566971952576995328?s=20&t=YjkxkRBOxuhGEbss63ogaA
  6. ↑ https://twitter.com/shiro_sh39/status/1255895548898361346
  7. ↑ https://twitter.com/SZRandomness/status/1144649656091021312
  8. ↑ https://twitter.com/SZRandomness/status/1144649656091021312
  9. ↑ https://twitter.com/yukicacoon/status/1566971952576995328?s=20&t=YjkxkRBOxuhGEbss63ogaA
  10. ↑ https://twitter.com/CC_jabberwock/status/1089154587628466177
  11. ↑ https://discord.gg/RtSadWM https://discord.com/channels/118339803660943369/425302689887289344/892404611137302538
  12. ↑ https://twitter.com/CC_jabberwock/status/1756634228954112168

See Also

v · e
Game Mechanics
Ship Mechanics • Equipment Mechanics
General Combat
Combat Calcultaions
Remodels/Upgrades
Others
Other
Defunct Mechanics


v · e
Equipment List
Gallery • By Stats • Equipment Types & Icons • Development • Improvement
 
Main Guns
Foreign
10cm Twin HA Gun Mount (+ AAFD • Kai + AAFD Kai) • 12cm Single HA Gun Mount (Model E • Model E Kai) • 12.7cm HA Gun Mount (Single LM • Twin LM • Single Kai 2 • Twin Kai 2) • 12.7cm Twin HA Gun Mount (Model A Kai 3 + AAFD • Model B Kai 4 + AAFD)
Foreign
14 cm
15-15.5 cm/6 inch
20-20.3 cm/8 inch
30.5-32 cm
305mm/46 Gun Mount (Twin • Triple) (Ita) • 320mm/44 Gun Mount (Twin • Triple) (Ita) • 30.5cm Triple Gun Mount (Kai) (Sov)
35.6 cm/14 inch
38-38.1 cm
41 cm/16 inch
41cm Twin Gun Mount (Kai 2) • 41cm Triple Gun Mount (Proto • Kai • Kai 2) • 16inch Twin Gun Mount (Mk.I • Mk.V • Mk.VIII Kai) (US) • 16inch Triple Gun Mount (Mk.6 • Mk.6 + GFCS • Mk.6 mod.2 • Mk.7 • Mk.7 + GFCS) (US) • 16inch Triple Gun Mount (Mk.I • Mk.I + AFCT Kai • Mk.I Kai + FCR Type 284) (UK)
46 cm
 
Secondary Guns
Surface
Foreign
 
Anti-Air
 
Torpedo Weapons
53cm Twin Torpedo Mount • 53cm Bow O2 Torpedoes • 61cm Torpedo Mount (Triple • Triple O2 • Triple O2 LM • Quad • Quad O2 • Quad O2 LM • Quintuple O2 • Proto Sext O2) • 533mm Quint Torpedo Mount (Initial Model • Late Model) (US) • 533mm Triple Torpedo Mount (Model 53-39) (Sov)
Late Model Bow Torpedo Mount (4 tubes) (+ Skilled Sonar Personnel) • Late Model Bow Torpedo Mount (6 tubes) (+ Skilled Sonar Personnel) • Submarine 53cm Bow Torpedo Mount (8 tubes) (Late Model) • Prototype FaT Type 95 Oxygen Torpedo Kai (IJN/Ger) • 21inch 4-tube Bow Torpedo Launcher (Initial Model • Late Model) (US) • 21inch 6-tube Bow Torpedo Launcher (Initial Model • Late Model) (US) • Submarine 4-tube Stern Torpedo Launcher (Initial Model • Late Model) (US)
Kouhyouteki (Type A • Type C • Type D Kai)
 
Carrier-Based Planes
Other (IJN)
Type 96 (Kai) • Shiden (Kai 2 • Kai 4) • Reppuu (Prototype LM • Model 11 • 601 • Kai • Kai 2 • Kai 2 (CD1/Skilled)) • Prototype Jinpuu • Shinden Kai
Foreign
Bf 109 T Kai (IJN/Ger) • Fw190 (T Kai • A-5 Kai (Skilled)) (IJN/Ger) • Reggiane (2001 OR Kai • 2005 Kai) (IJN/Ita) • Wildcat (F4F-3 • F4F-4) (US) • Hellcat (F6F-3 • F6F-5) (US) • XF5U (US) • FR-1 Fireball (US) • Fulmar (UK) • Seafire Mk.III Kai (UK) • Corsair Mk.II (Ace) (UK/US)
Reppuu Kai 2 Model E (CD1/Skilled) • Hellcat (F6F-3N • F6F-5N) (US) • F4U-2 Night Corsair (US)
Foreign
Ju.87C (Kai • Kai 2 KMX • Kai 2 KMX/Skilled) (IJN/Ger) • Re.2001 CB Kai (IJN/Ita) • SBD (Yellow Wings • VB-2 Bomber Squad) (US) • SBD-5 (US) • Helldiver (SB2C-3 • SB2C-5) (US) • Corsair (F4U-1D (US) • F4U-4 (US) • AU-1 (US) • F4U-7 (Fr/US)) • FM-2 (US) • Skua (UK)
Type 97 (Skilled • 931 • 931/Skilled • Tomonaga • Murata) • Tenzan (601 • 931 • Model 12A • Tomonaga • Murata) • Ryuusei (Kai • Kai Skilled • 601 • CD1 • CD1/Skilled)
Foreign
Re.2001 G Kai (IJN/Ita) • TBD (Yellow Wings) (US) • TBF (US) • Swordfish (Mk.II Skilled • Mk.III Skilled) (UK) • Barracuda (Mk.II • Mk.III) (UK) • Mosquito TR Mk.33 (UK)
Type 97 Model E (Skilled) • Tenzan Model 12A Kai (Skilled  • Murata) • TBM-3D (US) • TBM-3W+3S (JMSDF/US)
 
Land-Based Planes
Toukai (Proto • 901)
"Army"
Type 1 Fighter Hayabusa (Model II • Model II (64) • Model IIIA • Model IIIA (54)) (IJA) • Type 3 Fighter Hien (Model 1D • 244) (IJA) • Type 4 Fighter Hayate (IJA) • Type 2 Two-seat Fighter Toryuu (Model C) (IJA) • Ki-96 (IJA) • Fw 190 D-9 (Ger) • Spitfire (Mk.I • Mk.V • Mk.IX Skilled) (UK)
"Navy"
Raiden • Shiden (Model 11 • Kai • Kai 343/301 • Kai 343/407 • Kai 343/701) • Type 0 Fighter (Model 22 (251) • Model 21 (Tainan) • Model 32 (Tainan)) • Reppuu Kai (352/Skilled)
Jets
Canard
HA
Me 163B (Ger) • Shuusui (Proto)
 
Seaplanes
Type 98 Reconnaissance Seaplane (Night Recon) • Type 0 Reconnaissance Seaplane (11B Kai Night Recon • 11A Kai 2)  • Loire 130M (Kai Skilled) (Fr) • Walrus (UK) • Sea Otter (UK)
Zuiun (631 • 634 • 634/Skilled • Model 12 • Model 12 (634) • Kai 2 (634) • Kai 2 (634/Skilled)) • Seiran (Prototype • 631) • Swordfish (Mk.III Kai • Mk.III Kai Skilled) (UK/Swe) • Laté 298B (Fr)
Type 2 Kai (Skilled) • Kyoufuu (Kai • Kai 2) • Ro.44 Seaplane Fighter (bis) (Ita)
 
Radars
 
Anti-Submarine Warfare
Ka Type Observation Autogyro (IJA) • O Type Observation Autogyro (Kai • Kai 2) (IJA) • S-51J (Kai) (JMSDF/US)
 
Miscellaneous
Night Battle Aid
Facility & Crew
Consumables
Others
Unreleased & removed
HA - High-Angle or High-Altitude; DP - Dual-Purpose; LM - Late Model; CD - Concentrated Deployment or Carrier Division
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