View source for Equipment Bonuses

[[file:Fit_bonus_example.png|thumb|right|One additional Firepower gained from equipping a 12.7cm Type C Gun Mount]]
Equipment Bonuses refer to specific ship + equipment combos that trigger special effects, modifying specific stats with values referred to as "Fit Bonuses". These are displayed in the game by a '''↑+''' symbol in front of each applicable stat.

These bonuses should not be confused with the hidden Accuracy or Firepower Fit Bonuses, generally exclusive to gun mounts. 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'''.
* {{Range}} '''Range'''.
**"[[Combat/Day Battle#First_Shelling_Phase|Longest Range]]" is only displayed as "Very Long Range", but still work 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 '''(NEW)''' ''04/08/2021''
* {{Torpedo}}{{Dive}} '''Airstrike''' - All fits work but not as intended. The {{Torpedo}} Torpedo fit will be added to airstrike power to either {{Dive}} Dive Bombing stat or {{Torpedo}} Torpedo depending on the type of the plane. '''(NEW)''' ''04/08/2021''
* {{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>.

===Formulas===
* {{ASW}} '''Anti-Submarine Shelling''': All {{ASW}} ASW fits work as intended, both towards damage and OASW ship stat thresholds. '''(NEW)''' ''28/09/2021'' <ref>https://discord.gg/RtSadWM https://discord.com/channels/118339803660943369/425302689887289344/892404611137302538</ref>
** This includes fits provided by sources that don't count towards ASW damage, such as Reconnaissance Seaplanes & Carrier-Based Fighter Aircraft.
** '''Does not count''' as 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.

==Completely broken==
These fits have no effect:
* {{AA}} '''Anti-Air''': Does not work under any circumstances<ref>https://twitter.com/ayanamist_m2/status/1087678973331484673</ref><ref>https://twitter.com/mizucchi41/status/1246676483025686529</ref><ref>https://twitter.com/mizucchi41/status/1028610701571411968</ref>. Bonus granted to aircraft does not contribute to Air Power<ref>https://twitter.com/DarkQuetzal/status/1241651932361412610</ref>
* {{Acc}} '''Accuracy''': Does not work under any circumstances, as Accuracy is a derived stat.<ref>https://twitter.com/chang1124414276/status/1242332458936197120</ref>

===Formulas===
* {{Firepower}}{{Torpedo}}{{Dive}}{{ASW}} '''Night Carrier Cut-in Attack''': None of the fit stats works under any circumstances<ref>https://twitter.com/shiro_sh39/status/1255895548898361346</ref><ref>https://twitter.com/SZRandomness/status/1144649656091021312</ref>.
** Additionally, the firepower granted by Night Operations equipment such as Night Operations Personnel + Skilled Deckhands provide no damage increase for this formula<ref>https://twitter.com/SZRandomness/status/1144649656091021312</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 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.

==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)]]

==References==
<references />

==See Also==
*[[Stats]]
*[https://docs.google.com/spreadsheets/d/1bInH11S_xKdaKP754bB7SYh-di9gGzcXkiQPvGuzCpg "Equipment visible bonus" spreadsheet]
*[[Combat/Overweight Penalty and Fit Gun Bonus]]

{{Equipmentlist}}