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Combat/Overweight Penalty and Fit Gun Bonus
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Hidden fit bonus mechanics are still being investigated to this day, hence the values are not final and may be subject to changes. Cases with a question mark (?) are lacking enough data or are unmapped yet, and so may be outdated and/or erroneous. The developers have also adjusted hidden fits multiple times. |
The "hidden fit bonus" mechanic refers to some ships receiving bonuses or penalties when equipping certain equipment, depending on if the equipment "fits" the class or not.
- This almost exclusively refers to main guns, where each class of ship is engineered to carry up to certain gun calibers, and so, equipping gun turrets of the right caliber or lower will imply an accuracy bonus, whereas using larger calibers will result in some overweight penalties.
- So far, all fits involve Accuracy
, and some also affect Firepower
(excluding #Arctic Map Bonuses unic case).
- Accuracy
bonuses work like regular visible
stat, see here for more information.
- Firepower
bonuses are "pre-cap",
- Accuracy
- Not to be confused with visible Equipment Bonuses.
As hidden bonuses are unaffected by morale or fleet types (e.g. combined fleets), it can be interesting to utilize those fit bonuses as much as possible.
How much bonus/penalty a ship receives, depends on:
- The ship class, larger classes being able to carry larger equipment,
- If the ship is married or not, married girls having better fits,
- The gun size (caliber and quantity per turret), the larger ones being the most constraining.
- Some other less frequent factors:
- The ship's remodel,
- The ship's speed,
- Whether it is a day or night battle.
Battleships (FBB/BB/BBV) Bonuses
Battleships receive accuracy bonuses if the guns are fit and penalties if it is overweight [4].
Table Explainer
When equiping "Large Caliber Main Guns" on a FBB/BB/BBV, the resulting accuracy bonus/penalty is:
Fit Formula | |
---|---|
| |
Kongou Kai Ni equipped with 2 IJN 35.6cm Twin K2
|
Gun Groups
Bonus Groups
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 In those cases ONLY, the Marriage multiplier M (0.6x) is applied when married.
- ↑ 2.0 2.1 For BB only: if the base maximum HP (unmodified & before marriage) is > 92, set fit bonuses are set to 0.
- ↑ For all Yamato-class ships, the bonuses are applied in addition to other base types (FBB/BB/BBV) bonuses, including the 92+ HP rule for BB.
- ↑ Yamato Kai Ni Juu specified bonuses override the base BBV bonuses.
- ↑ In this case, the "46 cm Triple", "46 cm Triple K", and "51 cm" groups are counted as one.
Cruiser Bonuses
- Notes
- Future Medium Guns may fall in one of those categories based on similarities like caliber and number of guns.
- Groups A, B, C, D, and E are "Light Cruiser Guns", and Groups F and G are "Heavy Cruiser Gun".
Light Cruisers (CL/CLT/CT)
Accuracy bonuses for Light Cruisers (CL), Torpedo Cruisers (CLT), and Training Cruisers (CT).
Ships | Guns group[1] | ![]() | ||
---|---|---|---|---|
1st Gun | 2nd Gun | Unmarried | Married | |
Default to every CL(T)/CT |
- | - | 0 | 0 |
A/B | A/B | 0 | 2 | |
C | C | -5? | -1? | |
D | D | -6 | -3.6 | |
E | E | |||
F | F | |||
F | - | -3 | -1.8 | |
G | G | -22 | -17.6 | |
15.2cm Single Secondary![]() |
+4N | ? | ||
Agano-class | B | - | 5 | 7 |
B | B | 6 | 8 | |
F | F | -8 | -6 | |
Ooyodo | C | C | -2 | -1.2 |
F | F | -10 | -8 | |
Atlanta-class | E | E | 0 | 3 |
Abyssals | - | - | 0[2] | - |
Any Medium Gun | - | -3[3] | - |
- There is not enough data to pin down the exact fit accuracy formula.
- Other gun combinations fits cannot be extrapolated yet.
- There are known tests where the fit bonuses do not scale linearly with the number of guns.
- ↑ Changing gun order does not affect the final bonus
- ↑ Light Cruiser Tsu-Class
- ↑ Light Cruiser Ho-Class, Light Cruiser He-Class, Light Cruiser To-Class, Torpedo Cruiser Chi-Class
Firepower bonuses for Light Cruisers (CL), Torpedo Cruisers (CLT), and Training Cruisers (CT).
Ships | Guns | ![]() |
---|---|---|
Default to every CL(T)/CT |
13.8 cm Twin/Kai![]() ![]() 14cm Single ![]() 15.2cm Single Secondary ![]() |
+[math]\displaystyle{ 1\sqrt{N} }[/math] |
14cm Twin/Kai/2![]() ![]() ![]() ![]() ![]() ![]() |
+[math]\displaystyle{ 2\sqrt{N} }[/math] |
Heavy Cruisers (CA/CAV)
![]() |
CA(V) as well as other "Medium Guns capable ships" are still under investigation, this information is outdated and may be erroneous. |
Accuracy bonuses for Heavy Cruisers (CA), Aviation Cruisers (CAV), as well as some other "Medium Guns capable Auxiliaries".
- Other ships like Submarine Tenders (AS) are unmapped yet.
Ships | IJN 14 cm Twins![]() ![]() ![]() |
IJN 15.2 cm Twins![]() ![]() ![]() |
C | IJN 20.3 cm![]() ![]() ![]() ![]() |
RM 203 mm![]() |
G | ||
---|---|---|---|---|---|---|---|---|
All | N°1![]() |
N°2/3/4(?)![]() ![]() ![]() | ||||||
Day | Night | |||||||
CA(V) | ? | ? | ? | 0 | +10 | +15 | ? | 0 |
Mogami-class (CA/V) | ? | ? | +2 | ? | ||||
Mogami-class Kai Ni (CAV) | ? | ? | +5 | ? | ||||
Zara-class | ? | ? | ? | +1 | ||||
Nisshin Commandant Teste Kamoi Mikuma Kai Ni Toku(?)[1] |
-6N | -6N | ? | -8 -10N | ? | -8 -10N? | ||
Jingei-class | ? | ? | ? | ? | ? | ? |
- The table shows an estimated accuracy fit bonus based on having one fit gun equipped.
- The variable N refers to the number of guns of that category equipped,
- E.g. 2 guns of 2N = 4 Acc.
- Bonuses from guns of different classes are simply added together.
- The guns not mentioned in this table are simply unmapped, and may have bonuses or penalties.
- The IJN 20.3 cm only provide bonus on CA(V) during night battles.
- As of 13th December 2018 the hidden firepower bonus of 14cm Twin Gun Mount Kai
does not work/does not exist[citation needed].
- This is probably also true for the 14cm Twin Gun Mount Kai 2
[11]
- This is probably also true for the 14cm Twin Gun Mount Kai 2
Firepower bonuses for Heavy Cruisers (CA), Aviation Cruisers (CAV), as well as some other "Medium Guns capable ships" like Seaplane Tenders (AV), Kamoi (AO forms).
- Other ships like Submarine Tenders (AS) are unmapped yet.
Ships | RM 203 mm![]() |
---|---|
Zara-class | +[math]\displaystyle{ 1\sqrt{N} }[/math] |
12.7cm HA Late Models
As of the 2017-06-23 update, Yura Kai Ni, Mutsuki-classes, and Kamikaze-classes gain accuracy bonuses with some main Late Models High Angle 12.7cm guns
.
Ship | 12.7cm Single HA Mount (LM)![]() |
12.7cm Twin HA Mount (LM)![]() |
12.7cm Single HA![]() |
---|---|---|---|
CL(T)/CT | +4N | +2 +2N | ? |
Yura Kai Ni![]() |
+4 +10N | ? | |
Mutsuki-class | +5 | ? | ? |
Kamikaze-class | ? | ? | ? |
- Notes
- Only Yura Kai Ni
and Satsuki Kai Ni
were tested. It is unknown whether the other ships listed also receive those bonuses, or whether it only works for specific remodels.
- The variable N refers to the number of guns of that category equipped (ex: 2 guns of 2N = 4).
Sources: [15]
Destroyer (DD) Bonuses
Certain destroyers receive some Accuracy bonuses when equipped with certain guns or sonars. The resulting accuracy bonus is:
Fit Formula | |
---|---|
|
Known "C" values | ||
---|---|---|
Ships | Gear | C |
Tashkent/Verniy![]() ![]() |
![]() ![]() |
5 |
Fletcher-class | ![]() ![]() ![]() ![]() |
4[1] |
John C. Butler-class | 4[2] | |
J-class | ![]() ![]() |
3 |
![]() ![]() ![]() ![]() |
3 [3] | |
Mutsuki-class | ![]() ![]() |
5 |
- ↑ 2x base 5" Gun
on Fletcher-class gives ~10 accuracy. This is potentially a bug.
- ↑ Samuel B.Roberts does not seem to receive any bonus from base 5" Gun
. This is possibly a bug (maybe related to the bug on Fletcher-class).
- ↑ There are not enough samples on more than one ASDICs
sonar so it is not clear how does the accuracy bonus scales. This bonus can stack with the accuracy bonus from QF 4.7inch Gun Mk.XII Kai
.
Arctic Map Bonuses
On all "arctic maps", namely all World 3 maps, as well a some Event maps, the Arctic Camouflage (+ Arctic Equipment)
gives:
See Also
Main data sources:
- https://docs.google.com/spreadsheets/d/1d91OJxKWmqF35DDcxlYoJG0Ndrq0gtwALMNxlh4iiUQ/edit#gid=973638944
- https://docs.google.com/spreadsheets/d/11-nekeN0IBLtzdxxIzV0Gm3T7U4BpCrYA1lGsQYAEJo
- https://docs.google.com/spreadsheets/d/1tN3X92q9zaWC0IMHfgw-dSqWnuscgKJT7ZOf9M9_Hjk/edit#gid=0
- https://docs.google.com/spreadsheets/d/1M0YSCVlnul4Usb8MZ8oluCJAUXyvhU-7MJ4Plcuipds/edit#gid=0
- https://docs.google.com/spreadsheets/d/1Xm5VRj1FwgwlRISAyuwJgOJiBgOGOcGQJNcJ-pZHGFo/edit#gid=0
- https://docs.google.com/spreadsheets/d/1e6U4aLsrbdvkFlxdgT6wuJCmACpuOD3yYN0Om1o24fI/edit#gid=239440540
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