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Difference between revisions of "Improving Ship Speed"

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[[File:Shimakazefastest.png|thumb|right|By equipping a Turbine and an Engine it's possible to make fast destroyers like Shimakaze go speeds far beyond fast. As shown here, using a [[Improved Steam Turbine]] and a [[New High Pressure-Temperature Steam Boiler]] will result in Shimakaze going to '''Fastest''']]
+
{{PortMechanicsPortal}}
 +
[[File:Shimakazefastest.png|thumb|right|Equipping a Turbine and a Boiler make fast DD like Shimakaze go to speeds beyond fast. Here, using a [[Turbine]] and a [[New Model High Temperature High Pressure Boiler|+13 Boiler]] results in '''Fastest''' speed.]]
 +
[[File:Yamatofast.png|thumb|right|Equipping a Turbine and a Boiler make a BB like Yamato go from slow to fast. Here, using a [[Turbine]] (in the [[RE]]) and an [[Enhanced Kanhon Type Boiler|+10 Boiler]] results in '''Fast''' speed.]]
  
−
[[File:Yamatofast.png|thumb|right|By equipping a Turbine and an Engine it's possible to make Battleship like Yamato go from slow to fast. As shown here, using a [[Improved Steam Turbine]] (shown in the expansion slot) and an [[Enhanced Steam Boiler]] will result in Yamato going to '''Fast''' allowing her access to path branching she would otherwise not have access to when she was '''Slow'''.]]
+
Speed {{Speed}} represents the speed of a ship. Ship are either '''slow (低速)''' or '''fast (高速)''' by default. Ship speed can be further increased to '''fast+ (高速+)''' or '''fastest (最速)''' by using {{Turbine}} [[Engine Improvement]]s, usually a combination of a {{EquipmentLink|Improved Kanhon Type Turbine|text=Turbine}} with one or more {{EquipmentLink|Enhanced Kanhon Type Boiler|New Model High Temperature High Pressure Boiler|text=Boilers}}.
−
 
 
−
=Introduction=
 
−
Speed {{Speed}} represents the speed of a ship girl. Ship girls are either '''slow (低速)''' or '''fast (高速)''' by default. As of the [[Game_Updates/2017/January_10|10 Jan 2017 Update]], ship girl speed can be further increased to '''fast+ (高速+)''' or '''fastest (最速)''' by using a combination of {{Turbine}} {{EquipmentLink|Improved Kanhon Type Turbine|text=Turbine}} with one or more {{EquipmentLink|Enhanced Kanhon Type Boiler|New Model High Temperature High Pressure Boiler|text=Boilers}}.
 
  
 
=Overview=
 
=Overview=
−
There are several effects of increasing ship girl speed:
+
Ship's speed can take the following values:
−
 
+
* Slow (低速)
−
* Meeting routing requirements.
+
* Fast (高速)
−
** Slow ships can be sped up to fulfil certain branching requirements.
+
* Fast+ (高速+)
−
*** Note that this does not apply to ''ship type'' requirements. Eg a BB will not count as a FBB where FBBs are specifically required.
+
* Fastest (最速) (sometimes "Fast ++")
−
** Fast+ and fastest are required to fulfil routing requirements in some maps. Eg. [[World 3#3-2|3-2]] and [[World 4#4-5|4-5]].
 
−
* [[Combined Fleet]] composition.
 
−
** Slow battleships that are fast+ can be placed in the escort fleet.
 
−
* Evasion increase.
 
−
** Although this has been stated by the developers to occur, testing has not shown any significant increase in evasion.
 
−
* Because [[Coastal Defense Ships]] cannot equip {{Engine}}, they are the only ship type that '''cannot be sped up'''.
 
  
 +
There are several effects of increasing ship speed:
 +
* Meeting routing requirements:
 +
** Fleet speed affect certain [[Routing|map routing]].
 +
*** Note that this does not apply to ''ship type'' requirements (e.g. a BB will not count as an FBB where FBBs are specifically required).
 +
*** Most map routings are only affected by slow/fast fleets, '''fast+''' and '''fastest''' being required for routing in very few maps (e.g. [[3-2]] and [[4-5]]).
 +
* [[Combined Fleet#Combined Fleet Types|Combined Fleet composition]]:
 +
** BB/BBV that are '''fast+''' can be placed in the escort fleet of STF/TCF (only '''fast''' for the {{Class|Queen Elizabeth|Kai}}).
 +
* ''Evasion increase'':
 +
** Devs claim ([https://twitter.com/KanColle_STAFF/status/818739607776804866]) that higher speed values increase evasion, however, no such bonus has ever been measured ([https://twitter.com/Xe_UCH/status/819164409025032195][http://ja.kancolle.wikia.com/wiki/%E3%82%B9%E3%83%AC%E3%83%83%E3%83%89:676]).
 +
* Because [[Coastal Defense Ships]] (DE) cannot equip {{Engine}} [[Engine Improvement]]s, they are the only ship type that '''cannot be speed-up'''. The only exception is [[Inagi Kai Ni]].
 +
{{Clear}}
  
 
=Speed Change Charts=
 
=Speed Change Charts=
 +
It is '''highly recommended''' to have a [[Reinforcement Expansion]] on ships that are sped-up. Ships sped up without using a RE will have '''severely degraded combat efficiency''' in most cases.
  
−
It is '''highly recommended''' that you have a [[Reinforcement Expansion]] on ship girls that you wish to speed up. It can '''severely degrade''' their combat efficiency if you attempt to speed up ship girls without one.
+
So far, only 2 "boilers" exist in the game, and they are referred to as:
−
 
 
 
* {{Equipment/Link|Enhanced Kanhon Type Boiler}} = +10 Boiler
 
* {{Equipment/Link|Enhanced Kanhon Type Boiler}} = +10 Boiler
 
* {{Equipment/Link|New Model High Temperature High Pressure Boiler}} = +13 Boiler
 
* {{Equipment/Link|New Model High Temperature High Pressure Boiler}} = +13 Boiler
  
−
'''''All synergies listed below already include 1 {{Equipment/Link|Improved Kanhon Type Turbine}} because it is an absolute requirement for speed ups.'''''
+
'''''Unless stated otherwise, synergies listed below already include 1 {{Equipment/Link|Improved Kanhon Type Turbine}}, as it is a requirement for almost all speed-ups.'''''
−
{{:Partials/Speed system}}
+
<onlyinclude>{|class="wikitable typography-xl-optout mw-collapsible {{#if:{{{collapsed|}}}|mw-collapsed|}}"
 +
!colspan=4|{{Anchor|Speed groups}} Speed Groups
 +
|-
 +
!Base Speed
 +
!Speed Group
 +
!Type
 +
!Exceptions
 +
|-
 +
!rowspan=4|Fast
 +
!A
 +
|[[CAV]]
 +
|
 +
*CV(B/L): {{Class|Shoukaku}}, [[Taihou]], {{Class|Mogami|Kou Kai Ni}}
 +
*CA: {{Class|Mogami}}, {{Class|Tone}}
 +
*DD: [[Amatsukaze Kai Ni]], [[Shimakaze]], [[Tashkent]]
 +
*AV: [[Mikuma Kai Ni Toku]]
 +
|-
 +
!B<sub>1</sub>
 +
|N/A
 +
|
 +
*FBB: {{Class|Kongou}}, [[Yamato Kai Ni]], {{Class|Iowa}}
 +
*CV: [[Souryuu]], [[Hiryuu]], [[Unryuu]], [[Amagi]]
 +
*CL: {{Class|Agano}}
 +
*DD: [[Amatsukaze|Amatsukaze/Kai]]
 +
|-
 +
!B<sub>2</sub>
 +
|[[FBB]], [[CV]], [[CVB]], [[CA]], [[CL]], [[CLT]], [[DD]]
 +
|
 +
*CVL: [[Ryuujou]], [[Ryuuhou Kai Ni]], {{Class|Shouhou}}, {{Class|Chitose|Kou}}, {{Class|Independence}}
 +
|-
 +
!C
 +
|[[AV]]
 +
|
 +
*CV: [[Kaga]]
 +
*CL: [[Yuubari|Yuubari/Kai]]
 +
*DD: [[Samuel B. Roberts Mk.II]]
 +
|-
 +
!rowspan=4|Slow
 +
!A
 +
|N/A
 +
|
 +
*BB(V): {{Class|Yamato}}, {{Class|Nagato|Kai Ni}}
 +
*CVL: [[Houshou|Houshou Kai Ni/Sen]]
 +
|-
 +
!B
 +
|[[BB]], [[BBV]], [[CVL]], [[CT]], [[AS]], [[AO]], [[LHA]]
 +
|
 +
*FBB: [[Gangut]]
 +
*CL: [[Yuubari Kai Ni Toku]]
 +
*DD: [[Samuel B. Roberts|Samuel B. Roberts/Kai]]
 +
*DE: [[Inagi Kai Ni]]
 +
*AV: [[Mizuho]], [[Akitsushima]], [[Commandant Teste]], [[Kamoi Kai]]
 +
*AR: [[Asahi Kai]]
 +
|-
 +
!C
 +
|[[SS]], [[SSV]], [[AR]]
 +
|
 +
*AO: [[Hayasui]]
 +
*LHA: [[Akitsu Maru]]
 +
|-
 +
!None
 +
|[[DE]]
 +
|N/A
 +
|}
 +
{|class="wikitable typography-xl-optout mw-collapsible {{#if:{{{collapsed|}}}|mw-collapsed|}}"
 +
!colspan=4|Speed exceptions
 +
|-
 +
!Ships!!Speed group!!Exception!!Notes
 +
|-
 +
!colspan=2|All Fast A
 +
| +1 {{Speed}} [[Fit Bonus]] with the {{Equipment/Link|New Model High Temperature High Pressure Boiler|text=+13 Boiler}} at 7+ {{Star}}
 +
| Stackable
 +
|-
 +
!colspan=2|All Slow A
 +
| +1 {{Speed}} [[Fit Bonus]] with the {{Equipment/Link|New Model High Temperature High Pressure Boiler|text=+13 Boiler}} at 7+ {{Star}} & a {{Equipment/Link|Improved Kanhon Type Turbine|text=Turbine}}
 +
|-
 +
!{{Ship/Link|Houshou Kai Ni|Houshou Kai Ni Sen|text=Houshou Kai Ni/Sen}}
 +
|Slow A
 +
|rowspan=3| +1 {{Speed}} [[Fit Bonus]] with the {{Equipment/Link|New Model High Temperature High Pressure Boiler|text=+13 Boiler}}
 +
|Not self-stackable<br>Stackable with above only for {{Equipment/Link|New Model High Temperature High Pressure Boiler|text=+13 Boiler}} at '''6-''' {{Star}}
 +
|-
 +
!{{Ship/Link|Inagi Kai Ni}}
 +
|Slow B
 +
|Not self-stackable and speed capped to fast +
 +
|-
 +
!{{Type|Sentaka Type}}
 +
|Slow C
 +
|Not self-stackable
 +
|-
 +
!{{Ship/Link|Yuubari Kai Ni Toku}}
 +
{{Ship/Link|Samuel B. Roberts|Samuel B. Roberts Kai|text=Samuel B. Roberts/Kai}}
 +
|Slow B
 +
|Speed <u>set to '''Fast'''</u> when equipping a {{Equipment/Link|Improved Kanhon Type Turbine|text=Turbine}}
 +
|Not self-stackable<br>
 +
Bonus disabled if equipping any "other" variants of {{Engine}} [[Engine Improvement]]s.
 +
*Regular speed modding behaviors then.
 +
|-
 +
!{{Ship/Link|Amatsukaze Kai|Amatsukaze Kai Ni|text=Amatsukaze Kai/Ni}}
 +
{{Ship/Link|Shimakaze Kai}}
 +
|Fast A/B1
 +
|Can equip {{Engine}} {{Equipment/Link|Enhanced Kanhon Type Boiler|New Model High Temperature High Pressure Boiler|text=Boilers|link=Engine Improvement}} in the [[RE]]
 +
|}
  
−
{{Clear}}
+
{|class="wikitable typography-xl-optout mw-collapsible {{#if:{{{collapsed|}}}|mw-collapsed|}}" style="text-align:center"
 +
!colspan=7|Simplified [[Speed|Engine Synergies]]
 +
|-
 +
!rowspan=2|{{Speed}}<br>Speed Increments
 +
!rowspan=2|Boiler Type
 +
!colspan=4|Boilers Required
 +
|-
 +
!Fast A<br><br>
 +
!Fast B<sub>1</sub><br>Slow A
 +
!Fast B<sub>2</sub><br>Slow B
 +
!Fast C<br>Slow C
 +
|-
 +
!+1
 +
!Any boiler
 +
|colspan=4|1
 +
|-
 +
!rowspan=2|+2
 +
!{{Equipment/Link|New Model High Temperature High Pressure Boiler|text=+13}} boilers
 +
|1||2||2
 +
|rowspan=2|N/A
 +
|-
 +
!{{Equipment/Link|New Model High Temperature High Pressure Boiler|text=+13}} boiler<br>+ {{Equipment/Link|Enhanced Kanhon Type Boiler|text=+10}} boiler<br>= Total
 +
|0+<br>0+<br>2||1+<br>0+<br>2||0+<br>0+<br>3
 +
|-
 +
! +3<br>(Slow A only)
 +
!{{Equipment/Link|New Model High Temperature High Pressure Boiler|text=+13}} boiler<br>+ {{Equipment/Link|Enhanced Kanhon Type Boiler|text=+10}} boiler<br>= Total
 +
|N/A||1+<br>0+<br>3||colspan=2|N/A
 +
|}
 +
 
 +
{|class="wikitable mw-collapsible {{#if:{{{collapsed|}}}|mw-collapsed|}}" style="text-align:center"
 +
!colspan=25|[[Speed|Engine Synergies]]
 +
|-
 +
! rowspan=3 colspan=6| {{Turbine}} [[Engine Improvement]]s
 +
! rowspan=27 style="background-color:grey"|
 +
! colspan=11| Speed groups
 +
|-
 +
! colspan=4 style="color:black;background-color:#F99"| Fast
 +
! colspan=7 style="color:black;background-color:#6FF"| Slow
 +
|-
 +
! rowspan=2 style="color:black;background-color:#F99;width:50px"| A
 +
! rowspan=2 style="color:black;background-color:#F99;width:50px"| B1
 +
! rowspan=2 style="color:black;background-color:#F99;width:50px"| B2
 +
! rowspan=2 style="color:black;background-color:#F99;width:50px"| C
 +
! colspan=2 style="color:black;background-color:#6FF"| A
 +
! colspan=3 style="color:black;background-color:#6FF"| B
 +
! colspan=2 style="color:black;background-color:#6FF"| C
 +
|-
 +
! width=70px| Main Slots<br>Required
 +
! rowspan=24 style="background-color:grey"|
 +
! {{Equipment/Link|Improved Kanhon Type Turbine|text=Turbine}}
 +
! {{Equipment/Link|Enhanced Kanhon Type Boiler|text=+10 Boiler}}
 +
! {{Equipment/Link|New Model High Temperature High Pressure Boiler|text=+13 Boiler}}
 +
! {{Equipment/Link|New Model High Temperature High Pressure Boiler|text=+13 Boiler}}<br>7+{{Star}}
 +
! style="color:black;background-color:#6FF;width:50px"| {{Ship/Link|Houshou Kai Ni|Houshou Kai Ni Sen|text=Houshou K2/Sen}}
 +
! style="color:black;background-color:#6FF;width:50px"| A
 +
! style="color:black;background-color:#6FF;width:65px"| {{Ship/Link|Inagi Kai Ni|text=Inagi K2}}
 +
! style="color:black;background-color:#6FF;width:65px"| {{Ship/Link|Yuubari Kai Ni Toku|text=Yuub K2T}}<br>{{Ship/Link|Samuel B. Roberts|Samuel B. Roberts Kai|text=SamyB/K}}
 +
! style="color:black;background-color:#6FF;width:50px"| B
 +
! style="color:black;background-color:#6FF;width:50px"| {{Type|Sentaka Type}}
 +
! style="color:black;background-color:#6FF;width:50px"| C
 +
|-
 +
|colspan=18 style="background-color:grey"|
 +
|-
 +
| 0
 +
| 0
 +
| 0
 +
| colspan=2| 0
 +
| colspan=4 style="color:black;background-color:#C6E0B4"| fast
 +
| colspan=7 style="color:black;background-color:#FF0"| slow
 +
|-
 +
| 0
 +
| 1
 +
| 0
 +
| colspan=2| 0
 +
| colspan=4 style="color:black;background-color:#C6E0B4"| fast
 +
| colspan=3 style="color:black;background-color:#FF0"| slow
 +
| style="color:black;background-color:#C6E0B4"| fast
 +
| colspan=3 style="color:black;background-color:#FF0"| slow
 +
|-
 +
| 1+
 +
| 0
 +
| 1+
 +
| colspan=2| 0
 +
| colspan=4 style="color:black;background-color:#C6E0B4"| fast
 +
| colspan=7 style="color:black;background-color:#FF0"| slow
 +
|-
 +
| 1+
 +
| 0
 +
| 0
 +
| 1+
 +
| 0
 +
| colspan=4 style="color:black;background-color:#C6E0B4"| fast
 +
| rowspan=3 style="color:black;background-color:#C6E0B4"| fast
 +
| rowspan=3 style="color:black;background-color:#FF0"| slow
 +
| rowspan=3 style="color:black;background-color:#C6E0B4"| fast
 +
| rowspan=3 colspan=2 style="color:black;background-color:#FF0"| slow
 +
| rowspan=3 style="color:black;background-color:#C6E0B4"| fast
 +
| rowspan=3 style="color:black;background-color:#FF0"| slow
 +
|-
 +
| 1
 +
| 0
 +
| 0
 +
| 0
 +
| 1
 +
| style="color:black;background-color:#92D050"| fast +
 +
| colspan=3 rowspan=2 style="color:black;background-color:#C6E0B4"| fast
 +
|- style="border-bottom-style: solid; border-bottom-width: 3px; border-bottom-color: black"
 +
| 2+
 +
| 0
 +
| 0
 +
| 0
 +
| 2+
 +
| style="color:black;background-color:#00B050"| fast ++
 +
|-
 +
| 1
 +
| 1
 +
| 1
 +
| colspan=2| 0
 +
| style="color:black;background-color:#92D050"| fast +
 +
| rowspan=3 style="color:black;background-color:#92D050"| fast +
 +
| rowspan=2 style="color:black;background-color:#92D050"| fast +
 +
| rowspan=9 style="color:black;background-color:#92D050"| fast +
 +
| rowspan=3 colspan=2 style="color:black;background-color:#C6E0B4"| fast
 +
| rowspan=2 colspan=3 style="color:black;background-color:#C6E0B4"| fast
 +
| rowspan=3 colspan=2 style="color:black;background-color:#C6E0B4"| fast
 +
|-
 +
| 2
 +
| 1
 +
| 2
 +
| colspan=2| 0
 +
| rowspan=2 style="color:black;background-color:#00B050"| fast ++
 +
|-
 +
| 3+
 +
| 1
 +
| 3+
 +
| colspan=2| 0
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| colspan=3 style="color:black;background-color:#92D050"| fast +
 +
|-
 +
| 1
 +
| 1
 +
| 0
 +
| 1
 +
| 0
 +
| rowspan=6 style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#92D050"| fast +
 +
| style="color:black;background-color:#92D050"| fast +
 +
| style="color:black;background-color:#92D050"| fast +
 +
| style="color:black;background-color:#C6E0B4"| fast
 +
| style="color:black;background-color:#92D050"| fast +
 +
| colspan=2 style="color:black;background-color:#C6E0B4"| fast
 +
| rowspan=6 style="color:black;background-color:#92D050"| fast +
 +
| rowspan=6 style="color:black;background-color:#C6E0B4"| fast
 +
|-
 +
| 2
 +
| 1
 +
| 0
 +
| 2
 +
| 0
 +
| rowspan=2 style="color:black;background-color:#00B050"| fast ++
 +
| rowspan=2 style="color:black;background-color:#00B050"| fast ++
 +
| rowspan=2 style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#92D050"| fast +
 +
| colspan=3 rowspan=2 style="color:black;background-color:#92D050"| fast +
 +
|-
 +
| 3+
 +
| 1
 +
| 0
 +
| colspan=2| 3+
 +
| style="color:black;background-color:#00B050"| fast ++
 +
|-
 +
| 2
 +
| 1
 +
| 1
 +
| colspan=2| 1
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#92D050"| fast +
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#92D050"| fast +
 +
| style="color:black;background-color:#92D050"| fast +
 +
| colspan=2 style="color:black;background-color:#C6E0B4"| fast
 +
|-
 +
| 3+
 +
| 1
 +
| 2+
 +
| colspan=2| 1+
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| colspan=2 style="color:black;background-color:#00B050"| fast ++
 +
| colspan=3 style="color:black;background-color:#92D050"| fast +
 +
|- style="border-bottom-style: solid; border-bottom-width: 3px; border-bottom-color: black"
 +
| 3+
 +
| 1
 +
| 1+
 +
| colspan=2| 2+
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| colspan=2 style="color:black;background-color:#00B050"| fast ++
 +
| colspan=3 style="color:black;background-color:#92D050"| fast +
 +
|-
 +
| 1
 +
| 1
 +
| 0
 +
| 0
 +
| 1
 +
| rowspan=4 style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#92D050"| fast +
 +
| style="color:black;background-color:#92D050"| fast +
 +
| rowspan=4 style="color:black;background-color:#92D050"| fast +
 +
| colspan=2 style="color:black;background-color:#92D050"| fast +
 +
| style="color:black;background-color:#92D050"| fast +
 +
| colspan=2 style="color:black;background-color:#C6E0B4"| fast
 +
| rowspan=4 style="color:black;background-color:#92D050"| fast +
 +
| rowspan=4 style="color:black;background-color:#C6E0B4"| fast
 +
|-
 +
| 2+
 +
| 1
 +
| 0
 +
| 0
 +
| 2+
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| colspan=2 style="color:black;background-color:#00B050"| fast ++
 +
| colspan=3 style="color:black;background-color:#92D050"| fast +
 +
|-
 +
| 2
 +
| 1
 +
| 0
 +
| 1
 +
| 1
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#00B050"| fast ++
 +
| style="color:black;background-color:#92D050"| fast +
 +
| colspan=3 style="color:black;background-color:#92D050"| fast +
 +
|}</onlyinclude>
  
 
=See Also=
 
=See Also=
 +
*[[Stats]]
 
{{Mechanics}}
 
{{Mechanics}}

Latest revision as of 19:13, 6 August 2024

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Equipping a Turbine and a Boiler make fast DD like Shimakaze go to speeds beyond fast. Here, using a Turbine and a +13 Boiler results in Fastest speed.
Equipping a Turbine and a Boiler make a BB like Yamato go from slow to fast. Here, using a Turbine (in the RE) and an +10 Boiler results in Fast speed.

Speed Speed represents the speed of a ship. Ship are either slow (低速) or fast (高速) by default. Ship speed can be further increased to fast+ (高速+) or fastest (最速) by using Engine Improvement Engine Improvements, usually a combination of a TurbineImproved Kanhon Type Turbine with one or more BoilersEnhanced Kanhon Type Boiler
New Model High Temperature High Pressure Boiler.

Overview

Ship's speed can take the following values:

  • Slow (低速)
  • Fast (高速)
  • Fast+ (高速+)
  • Fastest (最速) (sometimes "Fast ++")

There are several effects of increasing ship speed:

  • Meeting routing requirements:
    • Fleet speed affect certain map routing.
      • Note that this does not apply to ship type requirements (e.g. a BB will not count as an FBB where FBBs are specifically required).
      • Most map routings are only affected by slow/fast fleets, fast+ and fastest being required for routing in very few maps (e.g. 3-2 and 4-5).
  • Combined Fleet composition:
  • Evasion increase:
    • Devs claim ([1]) that higher speed values increase evasion, however, no such bonus has ever been measured ([2][3]).
  • Because Coastal Defense Ships (DE) cannot equip Engine Improvement Engine Improvements, they are the only ship type that cannot be speed-up. The only exception is Inagi Kai Ni.

Speed Change Charts

It is highly recommended to have a Reinforcement Expansion on ships that are sped-up. Ships sped up without using a RE will have severely degraded combat efficiency in most cases.

So far, only 2 "boilers" exist in the game, and they are referred to as:

Unless stated otherwise, synergies listed below already include 1 Improved Kanhon Type TurbineImproved Kanhon Type Turbine, as it is a requirement for almost all speed-ups.

Speed Groups
Base Speed Speed Group Type Exceptions
Fast A CAV
B1 N/A
B2 FBB, CV, CVB, CA, CL, CLT, DD
C AV
Slow A N/A
B BB, BBV, CVL, CT, AS, AO, LHA
C SS, SSV, AR
None DE N/A
Speed exceptions
Ships Speed group Exception Notes
All Fast A +1 Speed Fit Bonus with the +13 BoilerNew Model High Temperature High Pressure Boiler at 7+ Improved Stackable
All Slow A +1 Speed Fit Bonus with the +13 BoilerNew Model High Temperature High Pressure Boiler at 7+ Improved & a TurbineImproved Kanhon Type Turbine
Houshou Kai Ni/SenHoushou Kai Ni
Houshou Kai Ni Sen 		Slow A +1 Speed Fit Bonus with the +13 BoilerNew Model High Temperature High Pressure Boiler Not self-stackable
Stackable with above only for +13 BoilerNew Model High Temperature High Pressure Boiler at 6- Improved
Inagi Kai NiInagi Kai Ni Slow B Not self-stackable and speed capped to fast +
Sentaka Type Slow C Not self-stackable
Yuubari Kai Ni TokuYuubari Kai Ni Toku

Samuel B. Roberts/KaiSamuel B. Roberts
Samuel B. Roberts Kai

Slow B Speed set to Fast when equipping a TurbineImproved Kanhon Type Turbine Not self-stackable

Bonus disabled if equipping any "other" variants of Engine Improvement Engine Improvements.

  • Regular speed modding behaviors then.
Amatsukaze Kai/NiAmatsukaze Kai
Amatsukaze Kai Ni

Shimakaze KaiShimakaze Kai

Fast A/B1 Can equip Engine Improvement BoilersEnhanced Kanhon Type Boiler
New Model High Temperature High Pressure Boiler in the RE
Simplified Engine Synergies
Speed
Speed Increments 		Boiler Type Boilers Required
Fast A

 Fast B1
Slow A 		Fast B2
Slow B 		Fast C
Slow C
+1 Any boiler 1
+2 +13New Model High Temperature High Pressure Boiler boilers 1 2 2 N/A
+13New Model High Temperature High Pressure Boiler boiler
+ +10Enhanced Kanhon Type Boiler boiler
= Total 		0+
0+
2		 1+
0+
2		 0+
0+
3
+3
(Slow A only) 		+13New Model High Temperature High Pressure Boiler boiler
+ +10Enhanced Kanhon Type Boiler boiler
= Total 		N/A 1+
0+
3		 N/A
Engine Synergies
Engine Improvement Engine Improvements Speed groups
Fast Slow
A B1 B2 C A B C
Main Slots
Required 		TurbineImproved Kanhon Type Turbine +10 BoilerEnhanced Kanhon Type Boiler +13 BoilerNew Model High Temperature High Pressure Boiler +13 BoilerNew Model High Temperature High Pressure Boiler
7+Improved 		Houshou K2/SenHoushou Kai Ni
Houshou Kai Ni Sen 		A Inagi K2Inagi Kai Ni Yuub K2TYuubari Kai Ni Toku
SamyB/KSamuel B. Roberts
Samuel B. Roberts Kai 		B Sentaka Type C
0 0 0 0 fast slow
0 1 0 0 fast slow fast slow
1+ 0 1+ 0 fast slow
1+ 0 0 1+ 0 fast fast slow fast slow fast slow
1 0 0 0 1 fast + fast
2+ 0 0 0 2+ fast ++
1 1 1 0 fast + fast + fast + fast + fast fast fast
2 1 2 0 fast ++
3+ 1 3+ 0 fast ++ fast +
1 1 0 1 0 fast ++ fast + fast + fast + fast fast + fast fast + fast
2 1 0 2 0 fast ++ fast ++ fast ++ fast + fast +
3+ 1 0 3+ fast ++
2 1 1 1 fast ++ fast + fast ++ fast + fast + fast
3+ 1 2+ 1+ fast ++ fast ++ fast ++ fast +
3+ 1 1+ 2+ fast ++ fast ++ fast ++ fast +
1 1 0 0 1 fast ++ fast + fast + fast + fast + fast + fast fast + fast
2+ 1 0 0 2+ fast ++ fast ++ fast ++ fast +
2 1 0 1 1 fast ++ fast ++ fast ++ fast + fast +

See Also

v · e
Game Mechanics
Ship Mechanics • Equipment Mechanics
General Combat
Combat Calcultaions
Remodels/Upgrades
Others
Other
Defunct Mechanics
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