Partials/Speed system

See full page: Improving Ship Speed

Ship's speed can take the following values:

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

Initially, a ship is either slow or fast, the speed can be increased (from slow to fast to fast+ to fastest) using the engine synergy, by equipping a turbineImproved Kanhon Type Turbine (can be equipped in the expansion slotReinforcement Expansion) and one or more boilers (Enhanced Kanhon Type BoilerEnhanced Kanhon Type Boiler and New Model High Temperature High Pressure BoilerNew Model High Temperature High Pressure Boiler) on a ship. The effects are

  • Increase in speed, slow ships will be fast and will count as fast for branching rules. It is also assumed that fast+ and fastest will have their own branching rules in the future.
    • Note, however, that this doesn't change ship types, initially slow BB and BBV (ship types 9 and 10) can have fast speed, but still aren't FBB (ship type 8).
  • Devs claim that higher speed values increase evasion. However, its magnitude/scope/existence is still investigated by players (preliminary tests suggest that there is no significant increase in evasion[1][2]).
  • Fast+ and Fastest speed values allow BB and BBV to be used in the CTF/STF escort fleet.
Speed and engine synergy
+13New Model High Temperature High Pressure Boiler boilers +10Enhanced Kanhon Type Boiler boilers Group/Speed Equipment
evasion
Slots
required
Fast Slow
A B1 B2 C A   B   B*     C   
0 0 Fast Slow Fast Slow 6 1
0 1 Fast+ Fast+ Fast+ Fast+ Fast Fast Fast 16 2
0 2 Fastest Fast+ Fast+ Fast+ Fast Fast Fast 26 3
0 3+ Fastest Fast+ Fastest Fast+ Fast Fast+ Fast 36+ 4+
1 0 Fastest Fast+ Fast+ Fast+ Fast Fast Fast 19 2
1 1 Fastest Fastest Fast+ Fast+ Fast+ Fast Fast 29 3
1 2+ Fastest Fastest Fastest Fast+ Fastest Fast+ Fast 39+ 4+
2 0 Fastest Fastest Fastest Fast+ Fast+ Fast+ Fast 32 3
2 1+ Fastest Fastest Fastest Fast+ Fastest Fast+ Fast 42+ 4+
3+ 0+ Fastest Fastest Fastest Fast+ Fastest Fast+ Fast 45+ 4+
Simplified table
Speed Increment Required Boiler Fast A Fast B1 Fast B2 Fast C Slow A Slow B Slow B* Slow C
+1 Just turbineImproved Kanhon Type Turbine N/A 1 N/A
Any boiler 1
+2 Either +13New Model High Temperature High Pressure Boiler boilers 1 2 2 N/A 2 2 N/A
Or +13New Model High Temperature High Pressure Boiler boilers, and 0 1 0 1 0
Total boiler count 2 2 3 2 3
+3 Either +13New Model High Temperature High Pressure Boiler boilers N/A 3 N/A
Or +13New Model High Temperature High Pressure Boiler boilers, and 1
Total boiler count 3
Speed groups
Initial speed Group Ships, classes, types
Destroyers Light Cruisers Heavy Cruisers Battleships Carriers Others
Fast A ShimakazeShimakaze · TashkentTashkent Tone-classTone
Chikuma
 · Mogami-classMogami
Mikuma
Suzuya
Kumano
TaihouTaihou · Shoukaku-classShoukaku
Zuikaku
 · Mogami-class CVLSuzuya Carrier Kai Ni
Kumano Carrier Kai Ni
B1 AmatsukazeAmatsukaze Agano-classAgano
Noshiro
Yahagi
Sakawa
Kongou-classKongou
Hiei
Haruna
Kirishima
 · IowaIowa
SouryuuSouryuu · HiryuuHiryuu · UnryuuUnryuu · AmagiAmagi
B2 Other DD Other CL · CLTKitakami Kai
Ooi Kai
Kiso Kai Ni
 · Yuubari Kai NiYuubari Kai Ni/DYuubari Kai Ni D
Other CA Other FBB Fast CVL · Other CV
C YuubariYuubari KagaKaga Fast AVChitose
Chiyoda
Nisshin
Slow A   Yamato-classYamato
Musashi
 · Nagato-class Kai NiNagato Kai Ni
Mutsu Kai Ni
 
B   Other BB · BBV · GangutGangut Slow CVL Slow AVKamoi Kai
Mizuho
Akitsushima
Commandant Teste
 · ASJingei
Chougei
Taigei
 · CTKatori
Kashima
 · Other AOShip Banner Kamoi.png
Ship Banner Kamoi Kai Bo.png
Ship Banner Souya (AGS).png(all forms)
Ship Banner Yamashio Maru.png
 · Shinshuu MaruShinshuu Maru
B* Samuel B. RobertsSamuel B. Roberts Yuubari Kai Ni TokuYuubari Kai Ni Toku
C   SS · SSV · ARAkashi · HayasuiHayasui · Akitsu MaruAkitsu Maru
I-203I-203 has a +1 Speed fit bonus with New Model High Temperature High Pressure BoilerNew Model High Temperature High Pressure Boiler. (Not self-stackable)