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|Desc = under construction, therefore the content below are subject to change
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This page studies the trigger rates & effectiveness of Artillery Spotting (弾着観測射撃), based on preliminary in-game testing. An optimal use of Artillery Spotting could considerably improve your fleet's daytime combat performances.
This page studies the trigger rates & effectiveness of Artillery Spotting (弾着観測射撃), based on preliminary in-game testing. An optimal use of Artillery Spotting could considerably improve your fleet's daytime combat performances.
In brief, Artillery Spotting ''(aka. Day Battle Special Attacks) ''consists of two types of attack: Cut-In '''[CI] '''& Double Attack '''[DA]'''. When activated, the attacking ship receives a damage output ([http://kancolle.wikia.com/wiki/Combat#Post-Cap_Modifiers post-cap]) & accuracy bonus. You need to achieve at least Air superiority (AS) during aerial combat, and at least 1 [http://kancolle.wikia.com/wiki/List_of_Seaplanes_by_stats seaplane] equipped on the ship. The remaining plane count can't be 0. More details could be found on the page [http://kancolle.wikia.com/wiki/Combat#Day_Battle_Special_Attacks_.28Artillery_Spotting.29 Game Mechanics -> Artillery Spotting] .
In brief, Artillery Spotting ''(aka. Day Battle Special Attacks) ''consists of two types of attack: Cut-In '''[CI] '''& Double Attack '''[DA]'''. When activated, the attacking ship receives a damage output ([[Combat#Post-Cap_Modifiers post-cap]]) & accuracy bonus. You need to achieve at least Air superiority (AS) during aerial combat, and at least 1 [[List_of_Seaplanes_by_stats]] equipped on the ship. The remaining plane count can't be 0. More details could be found on the page (-).
== Typical Set Ups for Artillery Spotting: ==
== Typical Set Ups for Artillery Spotting: ==
All the typical set ups are listed below, click [http://kancolle.wikia.com/wiki/Combat#Common_Setups here] to see more possible combinations. Notice that any other combination will NOT change their attack modes or trigger rates. The damage modifiers are all applied post-cap (150).
All the typical set ups are listed below, click (-) to see more possible combinations. Notice that any other combination will NOT change their attack modes or trigger rates. The damage modifiers are all applied post-cap (150).
==== Double Attack ====
==== Double Attack ====
* {{RedGunMedium}}{{RedGunMedium}}{{Seaplane}} ....................2 x [http://kancolle.wikia.com/wiki/List_of_Main_Guns_by_stats Main] + Seaplane..........................................(basic setup)
* {{RedGunMedium}}{{RedGunMedium}}{{Seaplane}} ....................2 x [[List_of_Main_Guns_by_stats]] + Seaplane..........................................(basic setup)
* {{RedGunMedium}}{{RedGunMedium}}{{Seaplane}}{{Seaplane}}............2 x Main + Seaplane + '''Seaplane'''
* {{RedGunMedium}}{{RedGunMedium}}{{Seaplane}}{{Seaplane}}............2 x Main + Seaplane + '''Seaplane'''
* {{RedGunMedium}}{{RedGunMedium}}{{Seaplane}}{{Radar}}............2 x Main + Seaplane + '''[http://kancolle.wikia.com/wiki/List_of_Radars_by_stats Radar]'''
* {{RedGunMedium}}{{RedGunMedium}}{{Seaplane}}{{Radar}}............2 x Main + Seaplane + '''[[List_of_Radars_by_stats]]'''
''>> DA Damage: 120% x 2. More powerful for ships with higher activation chances & shelling accuracy. Double attack = An extra chance to hit or crit the target.''
''>> DA Damage: 120% x 2. More powerful for ships with higher activation chances & shelling accuracy. Double attack = An extra chance to hit or crit the target.''
==== Cut-In ====
==== Cut-In ====
* {{RedGunMedium}}{{YellowGun}}{{Seaplane}}..........................1 x Main + [http://kancolle.wikia.com/wiki/List_of_Secondary_Guns_by_stats Sec] + Seaplane....................................(basic setup)
* {{RedGunMedium}}{{YellowGun}}{{Seaplane}}..........................1 x Main + [[List_of_Secondary_Guns_by_stats]] + Seaplane....................................(basic setup)
* {{RedGunMedium}}{{YellowGun}}{{Seaplane}}{{Radar}}.................1 x Main + Sec + Seaplane +''' Radar'''.......................(highest CI chance)
* {{RedGunMedium}}{{YellowGun}}{{Seaplane}}{{Radar}}.................1 x Main + Sec + Seaplane +''' Radar'''.......................(highest CI chance)
* {{RedGunHeavy}}{{YellowGun}}{{Seaplane}}{{RedAmmo}}.................1 x Main + Sec + Seaplane + '''[http://kancolle.wikia.com/wiki/List_of_Shells_by_stats AP shell]'''
* {{RedGunHeavy}}{{YellowGun}}{{Seaplane}}{{RedAmmo}}.................1 x Main + Sec + Seaplane + '''[[List_of_Shells_by_stats]]'''
''>> CI Damage: 110% / 120% / 130%. Works well for ships with high firepower while giving more chances for Artillery Spotting.''
''>> CI Damage: 110% / 120% / 130%. Works well for ships with high firepower while giving more chances for Artillery Spotting.''
==== Hybrid (DA+CI) ====
==== Hybrid (DA+CI) ====
* {{RedGunMedium}}{{RedGunMedium}}{{YellowGun}}{{Seaplane}}......................2 x Main + '''Sec''' + [http://kancolle.wikia.com/wiki/List_of_Seaplanes_by_stats Seaplane]
* {{RedGunMedium}}{{RedGunMedium}}{{YellowGun}}{{Seaplane}}......................2 x Main + '''Sec''' + [[List_of_Seaplanes_by_stats]]
* {{RedGunHeavy}}{{RedGunHeavy}}{{RedAmmo}}{{Seaplane}}......................2 x Main + '''AP shell''' + Seaplane..........................(most powerful)
* {{RedGunHeavy}}{{RedGunHeavy}}{{RedAmmo}}{{Seaplane}}......................2 x Main + '''AP shell''' + Seaplane..........................(most powerful)
''>> CI Damage: 110% / 150%. DA Damage 120% x 2. Both gives the highest base trigger chances (more dependent on FLoS).''
''>> CI Damage: 110% / 150%. DA Damage 120% x 2. Both gives the highest base trigger chances (more dependent on FLoS).''
== The Trigger Chance of Artillery Spotting: (Beta ver.) ==
== The Trigger Chance of Artillery Spotting: (Beta ver.) ==
Possible factors are listed below, followed by their '''''estimated''''' effects from experiments. These are best fit values from experiments, ''might ''be different from the actual ones, but they do give good estimates on the activation rates. To see how effects from each factor were evaluated, you may consult [http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Mid-Term_Report_on_the_ASTRE_Project Mid-Term Report on the ASTRE Project].
Possible factors are listed below, followed by their '''''estimated''''' effects from experiments. These are best fit values from experiments, ''might ''be different from the actual ones, but they do give good estimates on the activation rates. To see how effects from each factor were evaluated, you may consult (-).
The first 5 factors are assumed to have more solid basis:
The first 5 factors are assumed to have more solid basis:
The following factors have negligible effects on the trigger rates:
The following factors have negligible effects on the trigger rates:
*'''Type / number of caliber guns''' / 砲種 / 砲の数 (to be further evaluated)
*'''Type / number of caliber guns''' / 砲種 / 砲の数 (to be further evaluated)
* '''Health state / 損傷 '''([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Preliminary_Study_on_the_Health_State_Modifier_(DA) Negligible effect] on DA chance; Currently no test on CI chance)
* '''Health state / 損傷 '''(-] on DA chance; Currently no test on CI chance)
The following factors ''might'' have an effect on the trigger rates:
The following factors ''might'' have an effect on the trigger rates:
# '''Fatigue / 疲労度''' (No effect ?)
# '''Fatigue / 疲労度''' (No effect ?)
=== Detailed Explanation: ===
=== Detailed Explanation: ===
1. Before we start, let's assume a ''standard situation'', in which '''''Fleet total LoS = 300,''''' test ships are ''beyond minor damage(小破未満) and morale condition = 49''. Fleet formation'' Line Ahead'', and ''Air Supremacy (AS+)'' is achieved. Based on preliminary test results from [http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Translation_on_Kuubowokyuu%27s_Exp%27ts_on_the_Trigger_Rates_of_Artillery_Spotting 艦これ-チラ裏検証] & [http://kancolle.wikia.com/wiki/User:Homuhomu123#-_Homu_Test:_Trigger_Rates_of_Artillery_Spotting_.2F_.E3.83.9B.E3.83.A0.E3.83.86.E3.82.B9.E3.83.88.EF.BC.9A.E5.BC.BE.E7.9D.80.E8.A6.B3.E6.B8.AC.E5.B0.84.E6.92.83.E3.81.AB.E3.81.A4.E3.81.84.E3.81.A6 Homu Test], we may come up with the following hypothesis:
1. Before we start, let's assume a ''standard situation'', in which '''''Fleet total LoS = 300,''''' test ships are ''beyond minor damage(小破未満) and morale condition = 49''. Fleet formation'' Line Ahead'', and ''Air Supremacy (AS+)'' is achieved. Based on preliminary test results from [-] & (-), we may come up with the following hypothesis:
- BB(V) / CA(V) equipped with 2 x Main + 1 Seaplane has '''DA rate ~ 50% '''
- BB(V) / CA(V) equipped with 2 x Main + 1 Seaplane has '''DA rate ~ 50% '''
2. As '''fleet total LoS''' increases from 300 -> 400, the trigger rates increase slightly: ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Mid-Term_Report_on_the_ASTRE_Project#Fleet_total_LoS_.28FLoS.29 source])
2. As '''fleet total LoS''' increases from 300 -> 400, the trigger rates increase slightly: (-)
- BB(V): DA rate + 8%, per 100 additional FLoS
- BB(V): DA rate + 8%, per 100 additional FLoS
3. If an '''additional seaplane''' is added onto the 4th slot: ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Mid-Term_Report_on_the_ASTRE_Project#.5BDA.5D_3 source])
3. If an '''additional seaplane''' is added onto the 4th slot: (-)
- DA rate +6%
- DA rate +6%
4. If we use a '''radar''' on the 4th slot''',''' and compare it with the standard situation: ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Mid-Term_Report_on_the_ASTRE_Project#Fourth_Slot_Equipment_.28Radar.2C_AP_Shell_or_Extra_Seaplane.29 source])
4. If we use a '''radar''' on the 4th slot''',''' and compare it with the standard situation: (-)
- DA rate rises by 3% ~ 10%
- DA rate rises by 3% ~ 10%
Accuracy stat
Accuracy stat
|-
|-
|[http://kancolle.wikia.com/wiki/Type_22_Surface_RADAR No.22 (S) Surface]
|[[Type_22_Surface_RADAR]]
|''+26%''
|''+26%''
|''+5''
|''+5''
|<nowiki>+3</nowiki>
|<nowiki>+3</nowiki>
|-
|-
|[http://kancolle.wikia.com/wiki/Type_33_Surface_RADAR No.33 (S) Surface]
|[[Type_33_Surface_RADAR]]
|
|
|''+7''
|''+7''
|<nowiki>+5</nowiki>
|<nowiki>+5</nowiki>
|-
|-
|[http://kancolle.wikia.com/wiki/Type_22_Surface_RADAR_Kai_4 No.22 (S) Surface Kai4]
|[[Type_22_Surface_RADAR_Kai_4]]
|
|
|''+5''
|''+5''
|-
|-
|'''[http://kancolle.wikia.com/wiki/Type_32_Surface_RADAR No.32 (L) Surface]'''
|'''[[Type_32_Surface_RADAR]]'''
|'''''+30%'''''
|'''''+30%'''''
|'''''+10'''''
|'''''+10'''''
|'''+8'''
|'''+8'''
|-
|-
|[http://kancolle.wikia.com/wiki/FuMO25_Radar FuMO25 (L) Radar]
|[[FuMO25_Radar]]
|''+26% ''
|''+26% ''
|''+9''
|''+9''
|<nowiki>+10</nowiki>
|<nowiki>+10</nowiki>
|-
|-
|[http://kancolle.wikia.com/wiki/Type_14_Air_RADAR No.14 (L) Air Radar]
|[[Type_14_Air_RADAR]]
|''+30%''
|''+30%''
|''+5''
|''+5''
|<nowiki>+4</nowiki>
|<nowiki>+4</nowiki>
|-
|-
|[http://kancolle.wikia.com/wiki/Type_21_Air_RADAR No.21 (L) Air Radar]
|[[Type_21_Air_RADAR]]
|''+22% ''
|''+22% ''
|''+4''
|''+4''
Accuracy stat
Accuracy stat
|-
|-
|[http://kancolle.wikia.com/wiki/Type_98_Recon_Seaplane_(Night_Scout) Night Scout]
|[[Type 98 Recon Seaplane (Night Scout}]]
|'''+3'''
|'''+3'''
|'''-2% '''
|'''-2% '''
|<nowiki>+1</nowiki>
|<nowiki>+1</nowiki>
|-
|-
|[http://kancolle.wikia.com/wiki/Type_0_Recon_Seaplane Type 0 Recon]
|[[Type 0 Recon Seaplane]]
|'''+5'''
|'''+5'''
|'''+0% '''
|'''+0% '''
|<nowiki>+1</nowiki>
|<nowiki>+1</nowiki>
|-
|-
|[http://kancolle.wikia.com/wiki/Zuiun_(Auspicious_Clouds) Zuiun]
|[[Zuiun (Auspicious_Clouds)]]
|'''+6'''
|'''+6'''
|
|
|<nowiki>+1</nowiki>
|<nowiki>+1</nowiki>
|-
|-
|[http://kancolle.wikia.com/wiki/Type_0_Observation_Seaplane Type 0 Observation]
|[[Type 0 Observation Seaplane]]
|'''+6'''
|'''+6'''
|'''+2% '''
|'''+2% '''
|<nowiki>+2</nowiki>
|<nowiki>+2</nowiki>
|-
|-
|[http://kancolle.wikia.com/wiki/Prototype_Seiran Prototype Seiran]
|[[Prototype Seiran]]
|'''+6'''
|'''+6'''
|'''+2% '''
|'''+2% '''
6. For BB(V)s, radars could be replaced by '''AP Shells''' for a cut-in setup (Main + Sec / AP / Seaplane), which gives ~20% trigger chance bonus on CI ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Mid-Term_Report_on_the_ASTRE_Project#.5BCI.5D_3 source]). However, you could also use a''' <u>hybrid set up</u>''' (2*Main + AP or 2*Main + Sec.Gun). In the standard situation, the combined Artillery Spotting chance is around '''70%'''.
6. For BB(V)s, radars could be replaced by '''AP Shells''' for a cut-in setup (Main + Sec / AP / Seaplane), which gives ~20% trigger chance bonus on CI (-). However, you could also use a''' <u>hybrid set up</u>''' (2*Main + AP or 2*Main + Sec.Gun). In the standard situation, the combined Artillery Spotting chance is around '''70%'''.
- AP shell hybrid setup: ''CI = ~40% & ''DA = ~30%
- AP shell hybrid setup: ''CI = ~40% & ''DA = ~30%
- Secondary gun hybrid setup: ''CI = ~50% & ''DA = ~20%. ?
- Secondary gun hybrid setup: ''CI = ~50% & ''DA = ~20%. ?
- For hybrid setup, every 100 additional LoS <u>''will only increase CI chances by 5%.''</u>'' ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Mid-Term_Report_on_the_ASTRE_Project#.5BHYBRID.5D source])''
- For hybrid setup, every 100 additional LoS <u>''will only increase CI chances by 5%.''</u>'' (-)''
- Replacing Type 0 Recon by ''<u>Type 0 Observation Seaplane</u>'' will increase DA rate by ''3%. ? ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Mid-Term_Report_on_the_ASTRE_Project#.5BHYBRID.5D_4 source])''
- Replacing Type 0 Recon by ''<u>Type 0 Observation Seaplane</u>'' will increase DA rate by ''3%. ? (-)''
7. If Air Superiority [AS] rather than '''Air Supremacy [AS+]''', then both rates fall significantly: ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Mid-Term_Report_on_the_ASTRE_Project#Air_Control_State_.28AS_vs._AS.2B.29 source])
7. If Air Superiority [AS] rather than '''Air Supremacy [AS+]''', then both rates fall significantly: (-)
- Both CI & DA chance falls by at least 12%
- Both CI & DA chance falls by at least 12%
8. The '''flagship''' has a significantly higher chance (+15%) of triggering Artillery Spotting: ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Mid-Term_Report_on_the_ASTRE_Project#Flagship_Status source])
8. The '''flagship''' has a significantly higher chance (+15%) of triggering Artillery Spotting: (-)
- In the case of a hybrid setup, CI chance +7.5% while DA rate +7.5%. ?
- In the case of a hybrid setup, CI chance +7.5% while DA rate +7.5%. ?
- Lower activation rate compared to daytime CI.
- Lower activation rate compared to daytime CI.
- If each attack is counted separately, DA increases shelling accuracy ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Preliminary_Study_on_the_Effects_of_Leveling_%26_FLoS_Difference#Do_Double_Attacks_Increase_Your_Shelling_Accuracy_.3F source], scratches are not counted).
- If each attack is counted separately, DA increases shelling accuracy ((-), scratches are not counted).
- More dependent on accuracy if you wish to maximize the damage output ('''120% post-cap''' x 2 hits)
- More dependent on accuracy if you wish to maximize the damage output ('''120% post-cap''' x 2 hits)
* If head-on, T-disadvantage, DA would usually be a double-scratch on the enemy with heavy armor (unless critical).
* If head-on, T-disadvantage, DA would usually be a double-scratch on the enemy with heavy armor (unless critical).
- <u>For BB(V) using DA setup + radar</u>: ({{RedGunHeavy}}{{RedGunHeavy}}{{Seaplane}}{{Radar}})
- <u>For BB(V) using DA setup + radar</u>: ({{RedGunHeavy}}{{RedGunHeavy}}{{Seaplane}}{{Radar}})
* If high activation rate guaranteed (eg. flagship, FLoS >500), DA is recommended for enemy weaker than [http://kancolle.wikia.com/wiki/Battleship_Ru-Class Ru-Class Battleships]. ([http://kancolle.wikia.com/wiki/User_blog:Nainodel/All_About_Firepower#How_much_damage_will_I_deal.3F source])
* If high activation rate guaranteed (eg. flagship, FLoS >500), DA is recommended for enemy weaker than [(-)]. ((-))
* In another word, if either attack could wreck the enemy, preferably using DA due to higher chance of hitting the target.
* In another word, if either attack could wreck the enemy, preferably using DA due to higher chance of hitting the target.
* '''''AP shells''''' are accessible to BB(V), but provides a lower base DA chance (more Cut-In expected).
* '''''AP shells''''' are accessible to BB(V), but provides a lower base DA chance (more Cut-In expected).
* When facing '''extremely''' tough enemies at the boss node (eg. [http://kancolle.wikia.com/wiki/Battleship_Princess Battle Princess], [http://kancolle.wikia.com/wiki/Battleship_Water_Demon Water Demon]), DA is preferred for non-Yamato class battleships. After 3 pre-boss battles, their attack powers could barely hit 160 (see "remaining ammo modifier"). Even if they do, the resulting damage after armor reduction would be very small numbers. In this case, DA will be a '''double scratch''' on the target, causing ~10% of the target's current HP as damage. For [http://kancolle.wikia.com/wiki/Battleship_Water_Demon Water Demon], it will be 40+ damage per hit.
* When facing '''extremely''' tough enemies at the boss node (eg. [[Battleship Princess]], [[Battleship Water Demon]]), DA is preferred for non-Yamato class battleships. After 3 pre-boss battles, their attack powers could barely hit 160 (see "remaining ammo modifier"). Even if they do, the resulting damage after armor reduction would be very small numbers. In this case, DA will be a '''double scratch''' on the target, causing ~10% of the target's current HP as damage. For [[Battleship Water Demon]], it will be 40+ damage per hit.
- Activate frequently during daytime battle (w/ radar), more reliable trigger-rate-wisely.
- Activate frequently during daytime battle (w/ radar), more reliable trigger-rate-wisely.
- It gives accuracy boost. ([http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Evaluation_of_Radar_Modifiers_on_Cut-In_Chance#.5B_Exp.27t_H_.5D source 1], [http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Evaluation_of_Radar_Modifiers_on_Cut-In_Chance#.5B_Exp.27t_J_.5D_2 2])
- It gives accuracy boost. ((-), [(-)])
- <u>For CA(V) using CI setup + radar</u>: ({{RedGunMedium}}{{YellowGun}}{{Seaplane}}{{Radar}})
- <u>For CA(V) using CI setup + radar</u>: ({{RedGunMedium}}{{YellowGun}}{{Seaplane}}{{Radar}})
* '''150% post-cap, '''for AP shell hybrid setup. ({{RedGunHeavy}}{{RedGunHeavy}}{{RedAmmo}}{{Seaplane}})
* '''150% post-cap, '''for AP shell hybrid setup. ({{RedGunHeavy}}{{RedGunHeavy}}{{RedAmmo}}{{Seaplane}})
* Trigger rates are less volatile with respect to the changes in FLoS, but more penalized when Air Supremacy (AS+) is not achieved.
* Trigger rates are less volatile with respect to the changes in FLoS, but more penalized when Air Supremacy (AS+) is not achieved.
* Preliminary study shows AP shell provide 10+ additional firepower against enemies with heavy armor. Therefore, this setup is quite recommended when dealing with [http://kancolle.wikia.com/wiki/Battleship_Ru-Class Ru-Class Battleships] and above.
* Preliminary study shows AP shell provide 10+ additional firepower against enemies with heavy armor. Therefore, this setup is quite recommended when dealing with [[Battleship Ru-Class]] and above.
* When facing '''extremely '''tough enemies at the boss node (eg. [http://kancolle.wikia.com/wiki/Battleship_Princess Battle Princess], [http://kancolle.wikia.com/wiki/Battleship_Water_Demon Water Demon]), cut-ins would usually result in scratchy damage (see "remaining ammo modifier"), while DA could do it twice. In this case, the AP shell hybrid setup is only recommended for '''Yamato''' class battleships.
* When facing '''extremely '''tough enemies at the boss node (eg. [[Battleship Princess]], [[Battleship Water Demon]]), cut-ins would usually result in scratchy damage (see "remaining ammo modifier"), while DA could do it twice. In this case, the AP shell hybrid setup is only recommended for '''Yamato''' class battleships.
- Artillery Spotting (DA & CI) cannot miss, but may scratch the target due to weak shelling power and/or low accuracy. Scratching will inflict ~10% of the target's '''''current HP''''' as damage.
- Artillery Spotting (DA & CI) cannot miss, but may scratch the target due to weak shelling power and/or low accuracy. Scratching will inflict ~10% of the target's '''''current HP''''' as damage.
- In-depth study on the effectiveness of BB(V) using AP hybrid setup: [http://kancolle.wikia.com/wiki/User_blog:Nainodel/All_About_Firepower#How_much_damage_will_I_deal.3F Comparative study on DA vs CI with sample enemies] ''(by Nainodel)''.
- In-depth study on the effectiveness of BB(V) using AP hybrid setup: (-).
- Preliminary test results [[http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Shelling_Accuracy_Test_Results_(Source_to_be_cited)#II_-_The_Overweight_Penalty_on_FBB Source 1]][[http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Shelling_Accuracy_Test_Results_(Source_to_be_cited)#III_-_The_Overweight_Penalty_on_BB_.28cont.27d.29 2]] shows the '''overweight penalty''' ''(eg. using too many 46cm on FBB)'' will somehow lower shelling accuracy from single attacks. It is suspected that this would affect Artillery Spotting, too. Nevertheless, the penalty could be largely offset by either leveling (married ships), high morale ([http://kankoreshuukai.blog.jp/archives/2474494.html as high as possible]), or using a fit gun for the BB ''(eg. 35.6cm on Kongou Class)''. Accuracy bonus from equipment are also helpful in countering the penalty.
- Preliminary test results (-) (-) shows the '''overweight penalty''' ''(eg. using too many 46cm on FBB)'' will somehow lower shelling accuracy from single attacks. It is suspected that this would affect Artillery Spotting, too. Nevertheless, the penalty could be largely offset by either leveling (married ships), high morale ([http://kankoreshuukai.blog.jp/archives/2474494.html as high as possible]), or using a fit gun for the BB ''(eg. 35.6cm on Kongou Class)''. Accuracy bonus from equipment are also helpful in countering the penalty.
== Practical Use in Game & Suggestions ==
== Practical Use in Game & Suggestions ==
# '''Level up your ships & [http://kancolle.wikia.com/wiki/Marriage marry them].''' Ship levels affect their individual LoS stat, and a high FLoS would guarantee your ships to DA/CI frequently in battles. Also, if we assume a linear LoS growth, lv150 ships would have 50% more LoS than lv99 ships. It means if your central fleet is at lv99, they'd probably have FLoS ~400 (+8% DA/CI chance). When they're leveled up to lv150, you'll have FLoS ~600 (+24% DA/CI chance).
# '''Level up your ships & [[Marriage|marry them]].''' Ship levels affect their individual LoS stat, and a high FLoS would guarantee your ships to DA/CI frequently in battles. Also, if we assume a linear LoS growth, lv150 ships would have 50% more LoS than lv99 ships. It means if your central fleet is at lv99, they'd probably have FLoS ~400 (+8% DA/CI chance). When they're leveled up to lv150, you'll have FLoS ~600 (+24% DA/CI chance).
# Since fatigue doesn't seem to penalize the trigger rates while DA / CI boosts shelling accuracy, you could use it to counter fatigue. For example, '''[http://kancolle.wikia.com/wiki/Tutorial:_Leveling leveling] your ships at 3-2a with red faces.''' This method could drastically speed up your leveling, but less resource friendly (more buckets & repair cost).
# Since fatigue doesn't seem to penalize the trigger rates while DA / CI boosts shelling accuracy, you could use it to counter fatigue. For example, '''[[Tutorial:_Leveling|leveling]] your ships at 3-2a with red faces.''' This method could drastically speed up your leveling, but less resource friendly (more buckets & repair cost).
# If ELoS ([http://kancolle.wikia.com/wiki/Line_of_Sight effective LoS]) is prioritized, you wish to have more seaplane bombers, and/or you don't have good radars, '''''equip an extra seaplane on your 4th slot''''' is usually a good choice.
# If ELoS ([[Line_of_Sight|effective LoS]]) is prioritized, you wish to have more seaplane bombers, and/or you don't have good radars, '''''equip an extra seaplane on your 4th slot''''' is usually a good choice.
== Uncertainty ==
== Uncertainty ==
* In [http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Translation_on_Kuubowokyuu%27s_Exp%27ts_on_the_Trigger_Rates_of_Artillery_Spotting K-Test], if we compare no.7.8.9 versus no.15, we could see as FLoS increased from ~250 to 356, DA chance from Takao Class CAs didn't change at all. According to the FLoS calibration method, this gives an error of 8.5%, which is way above our tolerance. Is that a coincidence or something?
* In (-), if we compare no.7.8.9 versus no.15, we could see as FLoS increased from ~250 to 356, DA chance from Takao Class CAs didn't change at all. According to the FLoS calibration method, this gives an error of 8.5%, which is way above our tolerance. Is that a coincidence or something?