Ship Database
Tier X Battleship Special

Japan

Aki

A large hybrid battleship and a hypothetical option considered for converting a Yamato-class battleship into an aircraft-carrying ship. After the loss of four aircraft carriers at Midway in 1942, Japan found itself in desperate need of new ships of this type. At the same time, the prospect of a classic major engagement between battle fleets was becoming...

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A large hybrid battleship and a hypothetical option considered for converting a Yamato-class battleship into an aircraft-carrying ship. After the loss of four aircraft carriers at Midway in 1942, Japan found itself in desperate need of new ships of this type. At the same time, the prospect of a classic major engagement between battle fleets was becoming increasingly unlikely. In these circumstances, following the 1944 conversion of the Ise-class ships into hybrid battleships, it was conceivable that more powerful and modern battleships might also have been converted.

Doubloons
31,000
Official profile image of Aki

At a glance

The numbers that shape the ship

Hit points
102,300
Maximum speed
27.0 knots
Surface detection
17.6 km
Main battery range
26.1 km
Main battery reload
28.0 s

Combat envelope

Range and detection

Scale: 30 km

Every bar uses the same 30 km scale. Surface detection is a visibility threshold, not a weapon range.

  • Surface detection17.6 km
  • Main battery26.1 km
  • Secondary battery7.3 km

Damage comparison

Published maximum per hit

Ship-relative

Bars are normalized only against this ship's highest listed hit. They are not salvo damage, expected damage or DPM.

  • HE · 460 mm HE Type0 7,300
  • AP · 460 mm AP/APC Type91 14,800
Handling, concealment and protectionOverview

Handling

Maximum speed
27.0 knots
Turning circle radius
920 m
Rudder shift time
18.7 s
Maneuverability API rating 32

Concealment

Surface detection
17.6 km
Air detection
10.0 km
Submarine detection
10.0 km
Concealment API rating 26

Survivability

Hit points
102,300
Torpedo damage reduction
55 %
Survivability API rating 100

Published armour thickness

Only positive values supplied by the API are shown.

Overall published range
6–650 mm
Weapons and payloadsArmament

Surface armament

Main battery

Artillery API rating 85
Maximum range
26.1 km
Reload time
28.0 s
Rate of fire
2.1 rounds/min
180° turn time
60.0 s
Maximum dispersion
245 m

Shells

Damage is the API's published maximum for one shell hit.

460 mm HE Type0
HE
Maximum damage per hit
7,300
Fire chance
35.0 %
Muzzle velocity
805 m/s
Shell mass
1,360 kg
460 mm AP/APC Type91
AP
Maximum damage per hit
14,800
Muzzle velocity
780 m/s
Shell mass
1,460 kg
Gun layout
Mount
460 mm/45 Type 94 in a triple-gun turret
Mounts
2
Barrels each
3

Automatic armament

Secondary battery

Maximum range
7.3 km
Mount
155 mm HE Type0
Maximum damage per hit
2,600
Fire chance
10.0 %
Rate of fire
5.0 rounds/min
Muzzle velocity
925 m/s
Mount
127 mm HE Type0
Maximum damage per hit
2,100
Fire chance
8.0 %
Rate of fire
12.0 rounds/min
Muzzle velocity
725 m/s
Mount
127 mm HE Type0
Maximum damage per hit
2,100
Fire chance
8.0 %
Rate of fire
8.0 rounds/min
Muzzle velocity
725 m/s

Anti-aircraft defence

AA defence API rating 79
Aura
13 mm/76 Type 93 on a twin mount
Calibre
13 mm
Mounts
2
Aura
25 mm/60 Type 96 on a single mount
Calibre
25 mm
Mounts
14
Aura
25 mm/60 Type 96 on a triple mount
Calibre
25 mm
Mounts
36
Aura
40 mm/60 Type 5 on a twin mount
Calibre
40 mm
Mounts
14
Aura
127 mm/40 Type 89 on a Model A1 mount
Calibre
127 mm
Mounts
6
Aura
127 mm/40 Type 89 on a Model A1 Mod.2 mount
Calibre
127 mm
Mounts
6
Carrier aviationClass system

The public API still uses legacy aircraft categories and does not expose every modern carrier payload mechanic. Only fields returned by Wargaming are shown.

Dive bombers

Aichi M6A2 Seiran

Aircraft tier
10
Squadrons
1
Cruise speed
133 knots
Aircraft health
2,250
Modules, hull and progressionTechnical data

Default hull

Hull hit points
102,300
Main-battery barrels
2
Secondary barrels
14
AA mounts
78

Engine

Published maximum speed
27.0 knots

Fire control

Module research tree

Names, research prices and defaults are reported directly by the API.

Aichi M6A2 Seiran

Default
Type
DiveBomber

Propulsion: 158,000 hp

Default
Type
Engine

Aki

Default
Type
Hull

Type10 mod. 1

Default
Type
Suo

460 mm/45 Type 94 in a triple-gun turret

Default
Type
Artillery

Compatible upgrades

Official modernization descriptions and listed purchase prices. Effects still depend on the slot and configuration used in game.

Propulsion Modification 1

Modernization

Reduces time to full speed

Credits
1,000,000

Concealment System Modification 1

Modernization

Credits
2,000,000

Main Armaments Modification 1

Modernization

Credits
125,000

Aiming Systems Modification 1

Modernization

Credits
500,000

Air Groups Modification 3

Modernization

Credits
1,000,000

Damage Control System Modification 2

Modernization

Credits
1,000,000

Torpedo Lookout System

Modernization

Credits
2,000,000

Main Battery Modification 3

Modernization

Credits
3,000,000

Main Battery Modification 2

Modernization

Credits
500,000

Damage Control System Modification 1

Modernization

Credits
250,000

Steering Gears Modification 1

Modernization

Credits
1,000,000

Secondary Battery Modification 1

Modernization

Credits
500,000

Auxiliary Armaments Modification 1

Modernization

Credits
125,000

Gun Fire Control System Modification 2

Modernization

Credits
3,000,000

AA Guns Modification 1

Modernization

Credits
500,000
Available module groups
10
Compatible upgrades
15
Upgrade slots
6
Published battle levels
10–11

Cross-nation comparison

Ships that fill a similar slot

Closest same-tier, same-class matches from other nations, ranked by published base statistics.

U.S.A.

BA Montana

HP
96,300
Speed
30 kn
Guns
23.6 km
Open comparison

France

République

HP
92,400
Speed
30 kn
Guns
26.1 km
Open comparison

U.S.S.R.

Slava

HP
91,800
Speed
29.5 kn
Guns
24.7 km
Open comparison