Ship Database
Tier X Submarine Special

Japan

I-56 '44

One of three B3-class cruiser submarines built under a naval shipbuilding program adopted just before the outbreak of World War II. I-56 entered service in June 1944. Initially armed with a 140 mm gun, the submarine retained this configuration only briefly. By October 1944, she had already begun conversion into a carrier for manned torpedoes.

Doubloons
26,000
Official profile image of I-56 '44

At a glance

The numbers that shape the ship

Hit points
25,600
Maximum speed
30.0 knots
Surface detection
7.1 km
Main battery range
10.0 km
Main battery reload
2.0 s

Combat envelope

Range and detection

Scale: 15 km

Every bar uses the same 15 km scale. Surface detection is a visibility threshold, not a weapon range.

  • Surface detection7.1 km
  • Main battery10 km
  • Torpedoes15 km
  • Sonar ping8.5 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 · 140 mm HE Type1 2,500
  • Torpedo · Type95 mod. 3 25,833
Handling, concealment and protectionOverview

Handling

Maximum speed
30.0 knots
Turning circle radius
590 m
Rudder shift time
9.0 s
Maneuverability API rating 50

Concealment

Surface detection
7.1 km
Air detection
2.6 km
Submarine detection
2.6 km
Concealment API rating 90

Survivability

Hit points
25,600
Torpedo damage reduction
0 %
Survivability API rating 41

Published armour thickness

Only positive values supplied by the API are shown.

Overall published range
6–19 mm
Weapons and payloadsArmament

Surface armament

Main battery

Artillery API rating 25
Maximum range
10.0 km
Reload time
2.0 s
Rate of fire
30.0 rounds/min
180° turn time
7.2 s
Maximum dispersion
49 m

Shells

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

140 mm HE Type1
HE
Maximum damage per hit
2,500
Fire chance
16.0 %
Muzzle velocity
850 m/s
Shell mass
38 kg
Gun layout
Mount
140 mm/40 11th Year Type
Mounts
1
Barrels each
1

Automatic armament

Secondary battery

Underwater armament

Torpedoes

Torpedoes API rating 36

Type95 mod. 3

Maximum range
15.0 km
Maximum damage per hit
25,833
Reload time
45 s
Speed
78 knots
Detectability
2.1 km
Torpedo-tube layout
Mount
Torpedo Tubes: Bow Group
Mounts
6
Tubes each
1
Submarine systemsClass system

Dive capacity

Maximum capacity
90.0
Consumption rate (API value)
1.0
Regeneration rate (API value)
2.0
Dive capacity API rating 5

Underwater handling

Maximum underwater speed
13 knots
Maximum dive/ascent speed
2.9 knots
Dive-plane shift time
25.9 s
Underwater maneuverability API rating 5

Sonar ping

Maximum range
8.5 km
Ping width (API value)
18
Ping velocity (API value)
600
Reload time (API value)
6.5
Single-sector duration (API value)
25
Double-sector duration (API value)
55
Sonar API rating 50
Modules, hull and progressionTechnical data

Default hull

Hull hit points
25,600
Main-battery barrels
1
Torpedo tubes
6

Engine

Published maximum speed
30.0 knots

Module research tree

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

Propulsion: 9,400 hp

Default
Type
Engine

Type95 mod. 3

Default
Type
Torpedoes

140 mm/40 11th Year Type

Default
Type
Artillery

Type10 mod. 1

Default
Type
Sonar

I-56 '44

Default
Type
Hull

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

Torpedo Tubes Modification 1

Modernization

Credits
500,000

Damage Control System Modification 3

Modernization

Credits
250,000

Main Armaments Modification 1

Modernization

Credits
125,000

Torpedo Tubes Modification 2

Modernization

Credits
3,000,000

Aiming Systems Modification 1

Modernization

Credits
500,000

Damage Control System Modification 2

Modernization

Credits
1,000,000

Main Battery Modification 3

Modernization

Credits
3,000,000

Main Battery Modification 2

Modernization

Credits
500,000

Torpedo Tubes Modification 3

Modernization

Credits
2,000,000

Gun Fire Control System Modification 2

Modernization

Credits
3,000,000
Available module groups
10
Compatible upgrades
11
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.

United Kingdom

Seal

HP
19,200
Speed
27 kn
Guns
6 km
Torps
13 km
Open comparison

France

Surcouf

HP
31,600
Speed
32 kn
Guns
13.5 km
Torps
12 km
Open comparison

U.S.A.

Archerfish

HP
20,200
Speed
33 kn
Guns
6.5 km
Torps
10.5 km
Open comparison
All published source fields 148 values

Advanced reference for this saved default configuration. Field names follow Wargaming's source. An em dash replaces the source's −1 placeholder; it is not a negative measurement. These records do not include every mechanic in the game. Read the coverage guide.

Published fieldValue
ship_id3539384016
ship_id_strPJSS720
nameI-56 '44
typeSubmarine
nationjapan
tier10
is_premiumNo
is_specialYes
has_demo_profileNo
price_credit0
price_gold26000
mod_slots6
default_profile.armour.casemate.max—
default_profile.armour.casemate.min—
default_profile.armour.citadel.max—
default_profile.armour.citadel.min—
default_profile.armour.deck.max—
default_profile.armour.deck.min—
default_profile.armour.extremities.max—
default_profile.armour.extremities.min—
default_profile.armour.flood_damage0
default_profile.armour.health25600
default_profile.armour.range.max19
default_profile.armour.range.min6
default_profile.armour.total41
default_profile.artillery.artillery_id3529486032
default_profile.artillery.artillery_id_strPJUA730
default_profile.artillery.distance10.0
default_profile.artillery.gun_rate30.0
default_profile.artillery.max_dispersion49
default_profile.artillery.rotation_time7.2
default_profile.artillery.shells.HE.bullet_mass38
default_profile.artillery.shells.HE.bullet_speed850
default_profile.artillery.shells.HE.burn_probability16.0
default_profile.artillery.shells.HE.damage2500
default_profile.artillery.shells.HE.name140 mm HE Type1
default_profile.artillery.shells.HE.typeHE
default_profile.artillery.shot_delay2.0
default_profile.artillery.slots.0.barrels1
default_profile.artillery.slots.0.guns1
default_profile.artillery.slots.0.name140 mm/40 11th Year Type
default_profile.atbas.distance0.0
default_profile.battle_level_range_max11
default_profile.battle_level_range_min10
default_profile.concealment.detect_distance_by_plane2.6
default_profile.concealment.detect_distance_by_ship7.1
default_profile.concealment.detect_distance_by_submarine2.6
default_profile.concealment.total90
default_profile.engine.engine_id3529354960
default_profile.engine.engine_id_strPJUE730
default_profile.engine.max_speed30.0
default_profile.hull.anti_aircraft_barrels0
default_profile.hull.artillery_barrels1
default_profile.hull.atba_barrels0
default_profile.hull.health25600
default_profile.hull.hull_id3529256656
default_profile.hull.hull_id_strPJUH730
default_profile.hull.range.max19
default_profile.hull.range.min6
default_profile.hull.torpedoes_barrels6
default_profile.mobility.max_speed30.0
default_profile.mobility.rudder_time9.0
default_profile.mobility.total50
default_profile.mobility.turning_radius590
default_profile.submarine_battery.consumption_rate1.0
default_profile.submarine_battery.max_capacity90.0
default_profile.submarine_battery.regen_rate2.0
default_profile.submarine_battery.total5
default_profile.submarine_mobility.buoyancy_rudder_time25.9
default_profile.submarine_mobility.max_buoyancy_speed2.9
default_profile.submarine_mobility.max_speed_under_water13
default_profile.submarine_mobility.total5
default_profile.submarine_sonar.submarine_sonar_id3528961744
default_profile.submarine_sonar.submarine_sonar_id_strPJUQ730
default_profile.submarine_sonar.total50
default_profile.submarine_sonar.wave_duration_025
default_profile.submarine_sonar.wave_duration_155
default_profile.submarine_sonar.wave_max_dist8.5
default_profile.submarine_sonar.wave_shot_delay6.5
default_profile.submarine_sonar.wave_speed_max600
default_profile.submarine_sonar.wave_width18
default_profile.torpedoes.distance15.0
default_profile.torpedoes.max_damage25833
default_profile.torpedoes.reload_time45
default_profile.torpedoes.slots.0.barrels1
default_profile.torpedoes.slots.0.caliber533
default_profile.torpedoes.slots.0.guns6
default_profile.torpedoes.slots.0.nameTorpedo Tubes: Bow Group
default_profile.torpedoes.torpedo_nameType95 mod. 3
default_profile.torpedoes.torpedo_speed78
default_profile.torpedoes.torpedoes_id3528863440
default_profile.torpedoes.torpedoes_id_strPJUT730
default_profile.torpedoes.visibility_dist2.1
default_profile.weaponry.aircraft0
default_profile.weaponry.anti_aircraft0
default_profile.weaponry.artillery25
default_profile.weaponry.torpedoes36
modules.artillery[0]3529486032
modules.engine[0]3529354960
modules.hull[0]3529256656
modules.sonar[0]3528961744
modules.torpedoes[0]3528863440
modules_tree.3528863440.is_defaultYes
modules_tree.3528863440.module_id3528863440
modules_tree.3528863440.module_id_strPJUT730
modules_tree.3528863440.nameType95 mod. 3
modules_tree.3528863440.price_credit0
modules_tree.3528863440.price_xp0
modules_tree.3528863440.typeTorpedoes
modules_tree.3528961744.is_defaultYes
modules_tree.3528961744.module_id3528961744
modules_tree.3528961744.module_id_strPJUQ730
modules_tree.3528961744.nameType10 mod. 1
modules_tree.3528961744.price_credit0
modules_tree.3528961744.price_xp0
modules_tree.3528961744.typeSonar
modules_tree.3529256656.is_defaultYes
modules_tree.3529256656.module_id3529256656
modules_tree.3529256656.module_id_strPJUH730
modules_tree.3529256656.nameI-56 '44
modules_tree.3529256656.price_credit0
modules_tree.3529256656.price_xp0
modules_tree.3529256656.typeHull
modules_tree.3529354960.is_defaultYes
modules_tree.3529354960.module_id3529354960
modules_tree.3529354960.module_id_strPJUE730
modules_tree.3529354960.namePropulsion: 9,400 hp
modules_tree.3529354960.price_credit0
modules_tree.3529354960.price_xp0
modules_tree.3529354960.typeEngine
modules_tree.3529486032.is_defaultYes
modules_tree.3529486032.module_id3529486032
modules_tree.3529486032.module_id_strPJUA730
modules_tree.3529486032.name140 mm/40 11th Year Type
modules_tree.3529486032.price_credit0
modules_tree.3529486032.price_xp0
modules_tree.3529486032.typeArtillery
upgrades[0]4268937136
upgrades[1]4220702640
upgrades[2]4189245360
upgrades[3]4262645680
upgrades[4]4279422896
upgrades[5]4259499952
upgrades[6]4269985712
upgrades[7]4280471472
upgrades[8]4287811504
upgrades[9]4188196784
upgrades[10]4278374320

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