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This article is Overweight Penalty/Fit Gun Bonus
The article is already being adopted and currently under renovation.
Missing Information: Fit Gun table for BB, updated information and sources, quantified effects
Page Adopted By: Tsubakura
Please contact this person before making any major (non-grammar, typo correction, redesigning etc.) edits on this article.


See also: Fit gun bonus - Reddit intermediate players' guide

Fit Bonus and Overweight PenaltyEdit

With the introduction of fit gun mechanics on July 28th 2014, ships now will receive fit bonus/penalties depending if the equipped gun fits for the class or if the gun is too heavy for the ship to use.

As fit bonuses are unaffected by morale or combined fleets, it becomes important that you utilize the fit bonuses as much as possible.

Fit mechanics do not apply to the abyssal fleet.[1]

BattleshipsEdit

Battleships receives accuracy bonuses if the guns are fit and accuracy penalties if its overweight[2]. How much bonus/penalty a ship receives, depends on the battleship class, the caliber and type of the gun and whether the battle takes place during day or night.

Ship Class 30.5cm30.5cm Triple Gun Mount 231 Card
30.5cmK30.5cm Triple Gun Mount Kai 232 Card
35.6cm35.6cm Twin Gun Mount 007 Card
P35.6cmPrototype 35.6cm Triple Gun Mount 103 Card
Dazzle35.6cm Twin Gun Mount (Dazzle Camouflage) 104 Card
38cmK38cm Twin Gun Mount Kai 114 Card
38.1cm38.1cm Mk.I Twin Gun Mount 190 Card
38.1cm/N38.1cm Mk.I N Twin Gun Mount Kai 192 Card
38cm四38cm Quadruple Gun Mount 245 Card
38cmK四38cm Quadruple Gun Mount Kai 246 Card
381mm381mm 50 Triple Gun Mount 133 Card
381mmK381mm 50 Triple Gun Mount Kai 137 Card
41cm41cm Twin Gun Mount 008 Card
P41cmPrototype 41cm Triple Gun Mount 105 Card
41cmK41cm Triple Gun Mount Kai 236 Card
16inch16inch Triple Gun Mount Mk.7 161 Card
GFCS16inch Triple Gun Mount Mk.7 + GFCS 183 Card
P46cmPrototype 46cm Twin Gun Mount 117 Card 46cm46cm Triple Gun Mount 009 Card 46cmK46cm Triple Gun Mount Kai 276 Card P51cmPrototype 51cm Twin Gun Mount 128 Card
51cm51cm Twin Gun Mount 281 Card
Day Night Day Night Day Night Day Night Day Night Day Night Day Night Day Night Day Night Day Night
Kongou ClassKongou Banner
Hiei Banner
Kirishima Banner
Haruna Banner
+7 0 -2 0 -5 -5 -7 -8 -9 N/A
Bismarck ClassBismarck Banner +4 ?? +3 0 -5 -2? -2? -10 ? N/A
Гангут ClassГангут +7 +4 0 0 0 -7 -7 -10 -16 ? N/A
Richelieu ClassRichelieu Banner +4 +5 -2 0 -5 -7 -7 -10 ? N/A
Vittorio Veneto ClassLittorio Banner
Roma Banner
+4 ?? +2 0 -7 -5 -10 -10 ? N/A
Iowa ClassIowa Banner +4 ?? -2 0 -5 +4 -7 -10 ? N/A
Queen Elizabeth ClassWarspite Banner +4 ?? +2 0 +2 0 -3 -10 ? N/A
Ise Class (Base)Ise Banner
Hyuuga Banner
+2 ?? +2 0 +2 +2 -3 -7 ? N/A
Fusou Class (Base)Fusou Banner
Yamashiro Banner
+2 ?? +2 0 +2 +2 -3 -7 ? N/A
Ise Class (Kai)Ise Banner
Hyuuga Banner
+4 -2 +2 0 +2 0 -3 -5 -7 -8 -5 N/A
Fusou Class (Kai/Kai Ni)Fusou Kai Banner
Fusou Kai Ni Banner
Yamashiro Kai Banner
Yamashiro Kai Ni Banner
+4 -2 +2 0 +2 0 -3 -5 -7 -8 -5 N/A
Nagato Class (Base/Kai)Nagato Banner
Mutsu Banner
+2 ?? +2 0 +2 +2 -3 -7 ? 0
Nagato Class (Kai Ni)Nagato Kai Ni Banner ?? ?? ?? 0 +5 0 -3 -5 -5 0
Yamato ClassYamato Banner
Musashi Banner
0 0 0 0 0 0 0 0 0
Note: Fit gun mechanics are still being investigated to this day, hence the values are not final and may be subject to changes. Values with a question mark either means that its not conclusive yet or the conclusion drawn here is not the same as the one drawn by yumeji.
  • The table shows an estimated accuracy fit bonus based on having one fit gun equipped.
  • For married ships, the overweight penalty is reduced by 40% (A married Kongou with a 46cm receives a penalty of -6 instead of -10, for example).
  • If more than one gun of the same class is used, multiply the modifier by the square root of number of guns. (A Kongou-class with two A class guns equipped for example, that's √2 x 7 = 9.89)
  • If guns from different classes are used together, add the modifiers together. (A Kongou with a 35.6cm and 41cm mixed for example, that's 7 - 5 = 2.
  • Exceptions arises where different guns of the same class gives different bonuses on certain ships, notably Gangut. What would happen if you combine 30.5cm and 35.6cm is still under investigations.
Last Updated: April 29th 2018 Made by: Tsubakura

More generally, the accuracy offset can be defined with the formula:

$ W = \sum^{\text{All Classes}} \left ( C_{k} M_{k} \sqrt{N_{k}} \right ) \% $

Where:

  • $ W $ is the resulting fit bonus or overweight penalty
  • $ C_{k} $ is the main coefficient of the equipped gun class. Refer to the above table for the coefficients applied to each Battleship for their respective guns.
  • $ M_{k} $ is the marriage coefficient for the particular gun class. Assumes a value of 0.6 if the ship is married, and if the main coefficient is negative.
  • $ N_{k} $ is the number of equipped guns for that gun class.

CruisersEdit

Cruisers can receive accuracy and/or firepower bonuses from using fit guns in their load-out. Unlike battleships however, cruisers do not suffer from any overweight penalty nor do overweight guns for cruisers exists.

Ship Class GreenGunDP12.7cm Twin (LM)12.7cm Twin High-angle Gun Mount (Late Model) 091 Card RedGunMedium14cm Single14cm Single Gun Mount 004 Card

YellowGun15.2cm15.2cm Single Gun Mount 011 Card

RedGunMedium14cm Twin14cm Twin Gun Mount 119 Card

RedGunMedium15.2cm15.2cm Twin Gun Mount 065 Card
RedGunMedium15.2cmK15.2cm Twin Gun Mount Kai 139 Card

RedGunMedium15.5cm15.5cm Triple Gun Mount 005 Card

RedGunMedium15.5cmK15.5cm Triple Gun Mount Kai 235 Card

RedGunMedium20.3cm20.3cm Twin Gun Mount 006 Card

RedGunMedium20.3cm(2)20.3cm (No.2) Twin Gun Mount 090 Card
RedGunMedium20.3cm(3)20.3cm (No.3) Twin Gun Mount 050 Card

RedGunMedium203mm/53203mm 53 Twin Gun Mount 162 Card
Day Night Day Night Day Night Day Night Day Night Day Night
Ooyodo ClassOoyodo Banner +7?Icon Hit +??Icon Hit +1Icon Gun +5Icon Hit +2Icon Gun +7Icon Hit 0 0
Agano ClassAgano Banner
Noshiro Banner
Yahagi Banner
Sakawa Banner
+7?Icon Hit +??Icon Hit +1Icon Gun +8Icon Hit +2Icon Gun ?? 0 0
All other CL(T) +7Icon Hit +4Icon Hit +1Icon Gun +3Icon Hit +2Icon Gun ?? 0 0
Mogami ClassMogami Banner
Mikuma Banner
Suzuya Banner
Kumano Banner
0 0 0 +2Icon Hit 0 +10*Icon Hit 0
Mogami Class (K2)Mogami Banner
Mikuma Banner
Suzuya Banner
Kumano Banner
0 0 0 +5Icon Hit 0
Zara ClassZara Banner
Pola Banner
0 0 0 ?? +1Icon Hit +1Icon Gun
All other CA(V) 0 0 0 ?? 0

Note: Fit gun mechanics are still being investigated to this day, hence the values are not final and may be subject to changes. Values with a question mark means that it is potentially outdated and might no longer be correct.

  • The table shows an estimated accuracy and/or firepower fit bonus based on having one fit gun equipped.
  • Bonuses from guns of different classes are simply added together.
  • If more than one gun of the same class is used, multiply the modifier by the square root of number of guns (Ooyodo with two 15.5cm guns equipped for example, that's √2 x 7 = 9.89). Note that this also applies to firepower bonuses!
  • The night fit bonus from the 20.3cm series used to be capped at +15%. However, it is unknown whether this cap has been removed or not from the recent updates.
  • There is a possibility that certain fit categories only work during the day. The possibility is plausible, but there's no concrete data proving. The alternative theory is that the night bonus from the 20.3cm series overrides any other categories.
  • The fit mechanics for CL(T)/CT is currently broken, preventing them from gaining any fit bonuses. This bug has not been fixed yet as of February 15th 2018.
Last Updated: February 15th 2018 Made by: Tsubakura

Single Mount High-Angle BonusEdit

As of June 23, Yura and Mutsuki/Kamikaze-class destroyers gain fit bonuses from having single mount GreenGunDP equipped.

Ship GreenGunDP12.7cm Single HA Mount (Late Model)12.7cm Single High-angle Gun Mount (Late Model) 229 Card
Satsuki K2Satsuki Kai Ni Banner +5Icon Hit
Other Mutsuki-Class ??
Kamikaze-Class ??
Yura K2Yura Kai Ni Banner +10Icon Hit

Unknown factors:

  • Only Yura K2Yura Kai Ni Banner and Satsuki K2Satsuki Kai Ni Banner were tested. It's unknown whether the other ships in the same class would receive the same bonus or whether it only works for specific remodels.
  • It has not been tested with multiple guns, it's unknown whether it works the same as the other fit mechanics.
  • It is unknown whether the 12.7cm Single Gun Mount gives a fit bonus or not.
Last Updated: November 7th 2017 Made by: Tsubakura

Small Caliber GunsEdit

Some RedGunLight GreenGunDP small caliber main guns grant additional stats to certain ships and ship classes.

Ship RedGunLight12cm Single K212cm Single Gun Mount Kai 2 293 Card
Shimushu-classCatbomb
Etorofu-classCatbomb
Normal +1Icon Gun +1Icon AA +2Icon Evasion
w/ Radar +3Icon Gun +1Icon AA +1Icon ASW +5Icon Evasion
Mutsuki-classCatbomb
Kamikaze-classCatbomb
Normal +2Icon Gun +1Icon AA +3Icon Evasion
w/ Radar: +4Icon Gun +1Icon Torpedo +1Icon AA +6Icon Evasion
w/ 53cm Twin53cm Twin Torpedo Mount 174 Card x1: +4Icon Gun +4Icon Torpedo +1Icon AA +3Icon Evasion
w/ 53cm Twin53cm Twin Torpedo Mount 174 Card x2: +5Icon Gun +7Icon Torpedo +1Icon AA +3Icon Evasion
Ship RedGunLight12.7cm Twin Model A K212.7cm Twin Gun Mount Model A Kai 2 294 Card GreenGunDP12.7cm Twin Model A K3 + AAFD12.7cm Twin Gun Mount Model A Kai 3 (Wartime Modification) + Anti-Aircraft Fire Director 295 Card
Fubuki-classCatbomb Normal +1Icon Gun Normal +2Icon Gun +2Icon AA
w/ Radar +2Icon Gun +1Icon Torpedo +2Icon Evasion w/ Air Radar +2Icon Gun +8Icon AA
w/ Radar +5Icon Gun +1Icon Torpedo +2Icon Evasion
w/ 61cm Triple x1 +2Icon Gun +3Icon Torpedo w/ 61cm Triple x1 +3Icon Gun +3Icon Torpedo +2Icon AA
w/ 61cm Triple x2 +3Icon Gun +5Icon Torpedo w/ 61cm Triple x2 +4Icon Gun +5Icon Torpedo +2Icon AA
w/ 61cm Triple LM61cm Triple (Oxygen) Torpedo Mount Late Model 285 Card x1 +2Icon Gun +4Icon Torpedo w/ 61cm Triple LM61cm Triple (Oxygen) Torpedo Mount Late Model 285 Card x1 +3Icon Gun +4Icon Torpedo +2Icon AA
w/ 61cm Triple LM61cm Triple (Oxygen) Torpedo Mount Late Model 285 Card x2 +3Icon Gun +6Icon Torpedo w/ 61cm Triple LM61cm Triple (Oxygen) Torpedo Mount Late Model 285 Card x2 +4Icon Gun +6Icon Torpedo +2Icon AA
Ayanami-classCatbomb
Akatsuki-classCatbomb
Normal +2Icon Gun +2Icon AA
w/ Air Radar +2Icon Gun +8Icon AA
w/ Air Radar +5Icon Gun +1Icon Torpedo +2Icon AA +2Icon Evasion
w/ 61cm Triple x1 +3Icon Gun +3Icon Torpedo +2Icon AA
w/ 61cm Triple x2 +4Icon Gun +5Icon Torpedo +2Icon AA
w/ 61cm Triple LM61cm Triple (Oxygen) Torpedo Mount Late Model 285 Card x1 +3Icon Gun +4Icon Torpedo +2Icon AA
w/ 61cm Triple LM61cm Triple (Oxygen) Torpedo Mount Late Model 285 Card x2 +4Icon Gun +6Icon Torpedo +2Icon AA
Note: "61cm Triple" refers to either the 61cm Triple Torpedo Mount61cm Triple Torpedo Mount 013 Card or the 61cm Triple (Oxygen) Torpedo Mount61cm Triple (Oxygen) Torpedo Mount 125 Card; both provide the same bonus alongside the relevant equipment. The Late Model61cm Triple (Oxygen) Torpedo Mount Late Model 285 Card variant, however, provides different bonuses.
Ship RedGunLight12.7cm Twin Model B K212.7cm Twin Gun Mount Model B Kai 2 063 Card
Shiratsuyu Kai NiShiratsuyu Kai Ni Banner
Murasame Kai NiMurasame Kai Ni Banner
+1Icon Evasion
Shigure Kai NiShigure Kai Ni Banner +1Icon Gun
Yuudachi Kai NiYuudachi Kai Ni Banner +1Icon Gun +1Icon Torpedo +1Icon AA +2Icon Evasion
Kawakaze Kai NiKawakaze Kai Ni Banner +2Icon Evasion
Ayanami-classCatbomb
Akatsuki-classCatbomb
Hatsuharu-classCatbomb
+1Icon AA
Ship GreenGunDP12.7cm Twin Model K B4 + AAFD12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director 296 Card
Shiratsuyu Kai NiShiratsuyu Kai Ni Banner Normal +2Icon Gun +2Icon Evasion
w/ Air Radar +2Icon Gun +6Icon AA +2Icon Evasion
w/ Radar +3Icon Gun +3Icon Torpedo +4Icon Evasion
w/ 61cm Quad (Oxy)61cm Quadruple (Oxygen) Torpedo Mount 015 Card or LM61cm Quadruple (Oxygen) Torpedo Mount Late Model 286 Card +3Icon Gun +3Icon Torpedo +2Icon Evasion
Shigure Kai NiShigure Kai Ni Banner Normal +2Icon Gun +1Icon AA +1Icon Evasion
w/ Air Radar +2Icon Gun +7Icon AA +1Icon Evasion
w/ Radar +3Icon Gun +3Icon Torpedo +1Icon AA +3Icon Evasion
w/ 61cm Quad (Oxy)61cm Quadruple (Oxygen) Torpedo Mount 015 Card or LM61cm Quadruple (Oxygen) Torpedo Mount Late Model 286 Card +3Icon Gun +3Icon Torpedo +1Icon AA +1Icon Evasion
Murasame Kai NiMurasame Kai Ni Banner Normal +1Icon Gun +1Icon AA +2Icon Evasion
w/ Air Radar +1Icon Gun +7Icon AA +2Icon Evasion
w/ Radar +2Icon Gun +3Icon Torpedo +1Icon AA +4Icon Evasion
w/ 61cm Quad (Oxy)61cm Quadruple (Oxygen) Torpedo Mount 015 Card or LM61cm Quadruple (Oxygen) Torpedo Mount Late Model 286 Card +2Icon Gun +3Icon Torpedo +1Icon AA +2Icon Evasion
Yuudachi Kai NiYuudachi Kai Ni Banner Normal +2Icon Gun +1Icon Torpedo +1Icon Evasion
w/ Air Radar +2Icon Gun +1Icon Torpedo +6Icon AA +1Icon Evasion
w/ Radar +3Icon Gun +4Icon Torpedo +3Icon Evasion
w/ 61cm Quad (Oxy)61cm Quadruple (Oxygen) Torpedo Mount 015 Card or LM61cm Quadruple (Oxygen) Torpedo Mount Late Model 286 Card +3Icon Gun +4Icon Torpedo +1Icon Evasion
Kawakaze Kai NiKawakaze Kai Ni Banner Normal +1Icon Gun +2Icon Evasion
w/ Air Radar +1Icon Gun +6Icon AA +2Icon Evasion
w/ Radar +2Icon Gun +3Icon Torpedo +4Icon Evasion
w/ 61cm Quad (Oxy)61cm Quadruple (Oxygen) Torpedo Mount 015 Card or LM61cm Quadruple (Oxygen) Torpedo Mount Late Model 286 Card +2Icon Gun +3Icon Torpedo +2Icon Evasion
Shiratsuyu-classCatbomb
Hatsuharu-classCatbomb
Normal +1Icon Gun +1Icon Evasion
w/ Air Radar +1Icon Gun +5Icon AA +1Icon Evasion
w/ Radar +2Icon Gun +2Icon Torpedo +3Icon Evasion
w/ 61cm Quad (Oxy)61cm Quadruple (Oxygen) Torpedo Mount 015 Card or LM61cm Quadruple (Oxygen) Torpedo Mount Late Model 286 Card +2Icon Gun +3Icon Torpedo +1Icon Evasion
Ayanami-classCatbomb
Akatsuki-classCatbomb
Normal +1Icon Gun
w/ Air Radar +1Icon Gun +5Icon AA
w/ Radar +2Icon Gun +2Icon Torpedo +2Icon Evasion
w/ 61cm Quad (Oxy)61cm Quadruple (Oxygen) Torpedo Mount 015 Card or LM61cm Quadruple (Oxygen) Torpedo Mount Late Model 286 Card +2Icon Gun +3Icon Torpedo
Note: No additional bonus from equipping multiple torpedoes.

These tables show the visible stat bonuses for using certain equipment on certain ships/ship classes. These bonuses are added onto the regular stats of the equipment; this table does not show the total stats gained from the equipment. Hidden stat bonuses are not included. "Radar" refers to any radar with an accuracy stat greater than or equal to 3, while "Air Radar" specifically requires a radar classified as an air radar. If multiple combinations of listed equipment is equipped, the highest bonus is given.

Last Updated: August 15, 2018 by Drakylon

ReferencesEdit

  1. https://twitter.com/KanColle_STAFF/status/380246238991364096
  2. https://twitter.com/KanColle_STAFF/status/493648336142876674