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Combat/Artillery Spotting (view source)

Revision as of 06:30, 5 January 2015

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~~'''Recent Updates'''~~

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* Dec 31, 2014

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** ASTRE (artillery spotting trigger rate estimate) Project mid-term report working in progress. This will serve as a preliminary, experimental proof for the credibility of the trigger chance estimates.

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* Dec 19, 2014

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** [http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Translation_on_Kuubowokyuu%27s_Exp%27ts_on_the_Trigger_Rates_of_Artillery_Spotting Translation] added for the Japanese source data ([http://kankoregouchin.blog.fc2.com/blog-entry-23.html 艦これ-チラ裏検証]), from which fundamental assumptions were made

== Introduction: ==

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In brief, Artillery Spotting consists of two types of attack: Cut-In '''[CI] '''& Double Attack '''[DA]'''. When activated, the attacking ship receives a damage output (post-cap) & accuracy bonus. More detailed explanations could be found on the page [http://kancolle.wikia.com/wiki/Combat Game Mechanics -> Artillery Spotting] .

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The first 5 factors are derived from [http://kankoregouchin.blog.fc2.com/blog-entry-23.html 艦これ-チラ裏検証-] ''(click [http://kancolle.wikia.com/wiki/User_blog:Homuhomu123/Translation_on_Kuubowokyuu%27s_Exp%27ts_on_the_Trigger_Rates_of_Artillery_Spotting here] for a translated version)'' and can be verified in future experiments. In addition, these hypothesis will be used as ''fundamental assumptions'' in experiment data analysis.:

# '''Being the flagship / '''旗艦 (+15% for both rates)

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# '''Radar & type / '''電探 (+30% CI chance, +13% DA chance, maximum)

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# '''Radar & type / '''電探 (+30% CI chance, +10% DA chance, maximum)

# '''Air Supremacy or Superiority / '''制空権の状態 (-12% for both if only Air Superiority is achieved)

# '''Fleet total LoS / '''艦隊合計索敵値/ (+8% DA rate, +10% CI rate, per 100 additional LoS)

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- BB(V) equipped with 2 x Main & 1 seaplane has '''DA rate ~ 50%'''.

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- CA(V) quipped with 2 x Main & 1 seaplane has '''DA rate ~50% ??'''

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- CA(V) quipped with 2 x Main & 1 seaplane has '''DA rate 45 ~ 47%'''

- BB(V) equipped with 1 x Main + 1 x Secondary & 1 seaplane has '''CI rate ~ 50%'''

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- CA(V) equipped with 1 x Main + 1 x Secondary & 1 seaplane has '''CI rate ~50% ??'''

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- CA(V) equipped with 1 x Main + 1 x Secondary & 1 seaplane has '''CI rate 45 ~ 47%'''

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~~- It was suspected that CLs & some CAs have 5% lower DA/CI base rate ??~~

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4. If we replace the extra seaplane with a '''radar,''' and compare the results to those from the standard situation:

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- DA rate rises by 4 % ~ 13 % approximately, depending on ~~the~~ '''''~~accuracy~~ stat''''' of the radar ??

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- DA rate rises by 3 % ~ 13 % approximately, depending on '''''both stat''''' of the radar ??

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- CI rate rises by ~30% (surface radar) or ~26% (AA radar), depending on ~~the~~ '''''LoS stat''''' of the radar ??

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- CI rate rises by ~30% (surface radar) or ~26% (AA radar), depending on '''''LoS stat''''' of the radar ??

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===== - List of radars with their Estimated DA/CI rate modifier (~~Require further verification~~) =====

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===== - List of radars with their Estimated DA/CI rate modifier (Best fit values) =====

{| class="article-table" style="width: 500px;" border="0" cellpadding="1" cellspacing="1"

|-

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|-

|No.22 Surface

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|''+27%''

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|''+24%''

|''+5''

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|<nowiki>+4%</nowiki>

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|<nowiki>+3%</nowiki>

|<nowiki>+3</nowiki>

|-

|No.22 Kai-4 Surface

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|''+27%''

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|''+25% ''

|''+5''

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|<nowiki>+13%</nowiki>

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|<nowiki>+10% (??)</nowiki>

|<nowiki>+8</nowiki>

|-

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|'''''+30%'''''

|'''''+10'''''

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|'''+13%'''

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|'''+10%'''

|'''+8'''

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|FuMO25 AA Radar

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|''+26%''

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|''+26% ''

|''+9''

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|<nowiki>+14% ( ?? )</nowiki>

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|<nowiki>+8% ( ?? )</nowiki>

|<nowiki>+10</nowiki>

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|No.14 AA Radar

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|''+25% ??''

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|''+27% ??''

|''+5''

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|<nowiki>+6% ( ?? )</nowiki>

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|<nowiki>+4% ( ?? )</nowiki>

|<nowiki>+4</nowiki>

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|No.21 AA Radar

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|''+22% ??''

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|''+22% ''

|''+4''

|( ?? )

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- Night Scout ''(+ 3 LoS)'' gives less bonus on DA chance (-2%) ??

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- DA chance bonus depends on ~~both~~ stats ??

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- DA chance bonus depends on their LoS stats ??

- Different seaplanes have no effect on CI chance ??

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- '''''This part is currently neglected in DA/CI rate estimation.'''''

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<s>- '''''This part is currently neglected in DA/CI rate estimation.'''''</s>

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===== - List of seaplanes with their Estimated DA rate modifier (~~Extremely rough~~ estimates~~, NOT used in calculation~~) =====

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===== - List of seaplanes with their Estimated DA rate modifier (Rough estimates) =====

{| class="article-table" style="width: 500px;" border="0" cellpadding="1" cellspacing="1"

|-

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|Night Scout

|'''+3'''

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|'''-2% ??'''

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|'''-2% '''

|<nowiki>+1</nowiki>

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|Type 0 Recon

|'''+5'''

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|'''+0% ??'''

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|'''+0% '''

|<nowiki>+1</nowiki>

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~~|Ar196 Kai~~

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|Zuiun

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~~|'''+5'''~~

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~~|'''+0% ??'''~~

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~~|<nowiki>+2</nowiki>~~

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|-

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|Zuiun ~~(634 Air)~~

|'''+6'''

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|'''+1% ??'''

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|'''+1% '''(??)

|<nowiki>+1</nowiki>

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|Type 0 Observation

|'''+6'''

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|'''+2% ??'''

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|'''+2% '''

|<nowiki>+2</nowiki>

|}

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== Artillery Spotting Trigger Rate Estimate: (Beta ver.) ==

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NOTE: As mentioned before, these calculation only serves as rough estimates on your ship's artillery spotting chances. More credible tests (Sample size > 170) are required to come up with a better formula. Deviations from actual test results are supposed to be less than 5%, otherwise reworking on the formula itself should be considered. This does not include effects from fatigue, HP status(中破), and undetermined factors like formation, level differences (>>10), a few special ships (esp. CA) or maps, etc. The estimates for which their true probability is closer to 50% will be less accurate, and vise versa.

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NOTE: As mentioned before, these calculation only serves as rough estimates on your ship's artillery spotting chances. More credible tests (Sample size > 170) are required to come up with a better formula. Deviations from actual test results are supposed to be less than 5%, otherwise reworking on the formula itself should be considered. This does not include effects from fatigue, HP status(小破・中破), and undetermined factors like formation, level differences (>>10), a few special ships (esp. CA) or maps, etc. The estimates for which their true probability is closer to 50% will be less accurate, and vise versa.

Here's an example calculation in chart format, with sign convention:

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(+10%)

|

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~~<s>~~<+0%~~></s~~>

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<+2%>

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==== Sample Calculation for DA: ====

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1) Fuso Kai, AS+, FLoS = 300, equipped with 2 main, #32 radar & ~~Type 0 Obsv~~. will have a:

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1) Fuso Kai, AS+, FLoS = 300, equipped with 2 main, #32 radar & Zuiun. will have a:

* DA chance of ...

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* 50%''(~~<s>~~BB~~</s>~~ Base)'' + 13%''[Radar Modifier] ''+ 0%''(LoS Modifier) ~~<s>~~+1%<Seaplane~~></s~~>'' = '''63%'''

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* 50%''(BB Base)'' + 10%''[Radar Modifier] ''+ 0%''(LoS Modifier) +1%<Seaplane>'' = '''61%'''

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*

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2) Prinz Eugen Kai, AS+, FLoS = 300, equipped with 2 main, FuMO32 & Ar196 will have a:

* DA chance of ...

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* 50%''(<s>CA</s> Base)''+ 16%''[Radar Modifier]''+ 0%''(LoS Modifier)'' ~~<s>~~+0''%<Seaplane>''</s>'' ''= '''66%'''

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* 47%''(<s>CA</s> Base)''+ 8%''[Radar Modifier]''+ 0%''(LoS Modifier)'' +1''<nowiki>%<Seaplane>'</nowiki>''' ''''''''= '''56%'''<nowiki/>'''

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3) Chikuma Kai, AS+, FLoS = 400, equipped with 2 main, #22 radar & Type 0 ~~Recon~~ will have a:

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3) Chikuma Kai, AS+, FLoS = 400, equipped with 2 main, #22 radar & Type 0 Observation will have a:

* DA chance of ...

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* 50%''(~~<s>~~CA~~</s>~~ Base)''+ 4%''[Radar Modifier]''+ 8%''(LoS Modifier) ~~<s>+ </s>~~''~~<s>0~~''%<Seaplane>''~~</s>~~= '''62%'''

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* 47%''(CA Base)''+ 3%''[Radar Modifier]''+ 8%''(LoS Modifier) ''+2''%<Seaplane> ''= '''60%'''

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*

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4) Haruna Kai, {flagship}, AS+, FLoS = 300, equipped with 2 main, #22 radar & Type 0 Recon will have a:

* DA chance of ...

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* 50%''(~~<s>~~BB~~</s>~~ Base)''+ 15%''{Flagship Modifier}'' + 4%''[Radar Modifier]''+ 0%''(LoS Modifier)''= '''69%'''

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* 50%''(BB Base)''+ 15%''{Flagship Modifier}'' + 3%''[Radar Modifier]''+ 0%''(LoS Modifier) ''= '''68%'''

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*

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5) Mutsu Kai, {flagship}, '''AS''', FLoS = 300, equipped with 2 main guns, #22 radar & Type 0 Recon will have a:

* DA chance of ...

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* 50%''(~~<s>~~BB~~</s>~~ Base)''+ 15%''{Flagship Modifier} - 12%(Air Superiority)'' + 4%''[Radar Modifier]''+ 0%''(LoS Modifier)''= '''57%'''

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* 50%''(BB Base)''+ 15%''{Flagship Modifier} - 12%(Air Superiority)'' + 3%''[Radar Modifier]''+ 0%''(LoS Modifier)''= '''56%'''

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*

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==== Sample Calculation for CI: ====

1) Fuso Kai, AS+, FLoS = 300, equipped with 1 main + 1 sec, #22 Surface radar & seaplane will have a:

* CI chance of ...

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* 50%''(<s>BB</s> Base)''+ 30%''[Radar Modifier]''+ 0%''(LoS Modifier) ''= '''80%'''

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* 50%''(<s>BB</s> Base)''+ 24%''[Radar Modifier]''+ 0%''(LoS Modifier) ''= '''74%'''

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*

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2) Atago Kai, AS+, FLoS = 300, equipped with 1 main + 1 sec, ~~#14 AA~~ radar & seaplane will have a:

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2) Atago Kai, AS+, FLoS = 300, equipped with 1 main + 1 sec, FuMO25 radar & seaplane will have a:

* CI chance of ...

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* 50%''(<s>CA</s> Base)''+ 25%''[AA Radar Modifier]''+ 0%''(LoS Modifier) ''= '''75%'''

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* 50%''(<s>CA</s> Base)''+ 26%''[Radar Modifier]''+ 0%''(LoS Modifier) ''= '''76%'''

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*

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3) Mutsu Kai, AS+, FLoS = 400, equipped with 1 main + sec, AP shell & seaplane will have a:

* CI chance of ...

* 50%''(<s>BB</s> Base)''+ 20%''[AP Shell Modifier]''+ 10%''(LoS Modifier) ''= '''80%'''

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*

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4) Kumano Kai, AS+, FLoS = 400, equipped with 1 main + 1sec, #32 Surface radar & seaplane will have a:

* CI chance of ...

* 50%''(<s>CA</s> Base)''+ 30%''[Radar Modifier]''+ 10%''(LoS Modifier)''= '''90%'''

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*

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==== Sample Calculation for Hybrid Setup: (~~Lower Credibility~~) ====

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==== Sample Calculation for Hybrid Setup: (Rough estimate) ====

1) Mutsu Kai, AS+, FLoS = 400, Type 0 Recon, AP shell setup with 41cm x 2:

* Total artillery spotting rate = 70%''(BASE)'' + 5%''(LoS Modifier)'' = '''75%'''.

** CI% = 38%''(AP BASE)'' + 5%''(LoS Modifier)'' = '''''43%'''''

** DA% = 32%''(AP BASE) = '''32%'''''

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*

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2) Kongou Kai Ni, AS+, FLoS = 400, Type 0 Obsv., AP shell setup with 46cm x 2:

* Total artillery spotting rate = 70%''(BASE)''+ 5%''(LoS Modifier) + 3%<Type 0 Obsv.> ''= '''78%'''

** CI% = 43%''(AP BASE, Overload) ''+ 5%(LoS) ='' '''48%'''''

** DA% = 27%''(AP BASE, Overload) + 3%(Obsv.Seaplane) = '''30%'''''

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*

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3) Nagato Kai, '''AS''', FLoS = 400, Type 0 Obsv., AP shell setup with 46cm x 2:

* Total artillery spotting rate = 70%''(BASE) - ''18%''(Air Superiority)''+ 5%''(LoS Modifier) + 3%<Type 0 Obsv.> ''= '''60%'''

** CI% = 43%''(AP BASE, Overload) - ''11%''(Air Superiority)''+ 5%(LoS) = '''''37%'''''

** DA% = 27%''(AP BASE, Overload) - ''7%''(Air Superiority)+ 3%(Obsv.Seaplane) = '''23%'''''

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*

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== Effectiveness of Artillery Spotting ==

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- Read more: [http://kancolle.wikia.com/wiki/User_blog:Nainodel/All_About_Firepower#How_much_damage_will_I_deal.3F Comparative study on DA/CI with sample enemies] .

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Anonymous user

>Homuhomu123

Changes

Combat/Artillery Spotting (view source)

Revision as of 06:30, 5 January 2015

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