Combat envelope
Range and detection
Every bar uses the same 10 km scale. Surface detection is a visibility threshold, not a weapon range.
Ship Database
Tier VIII
Submarine
Premium
Japan
I-56
The second Otsu-Gata Type B3 submarine was commissioned in June 1944. I-56 took part in the defense of the Philippine Islands and engaged in the Battle of Leyte Gulf, during which she sustained damage. In 1944, she was converted into a Kaiten torpedo carrier. I-56 was lost in the course of the Battle of Okinawa, and the circumstances of her loss remain unknown.
- Doubloons
- 11,000
At a glance
The numbers that shape the ship
- Hit points
- 24,200
- Maximum speed
- 29.0 knots
- Surface detection
- 7.1 km
- Main battery range
- 8.5 km
- Main battery reload
- 1.0 s
Damage comparison
Published maximum per hit
Bars are normalized only against this ship's highest listed hit. They are not salvo damage, expected damage or DPM.
Handling, concealment and protectionOverview
Handling
- Maximum speed
- 29.0 knots
- Turning circle radius
- 590 m
- Rudder shift time
- 9.0 s
Concealment
- Surface detection
- 7.1 km
- Air detection
- 2.6 km
- Submarine detection
- 2.6 km
Survivability
- Hit points
- 24,200
- Torpedo damage reduction
- 0 %
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
- Maximum range
- 8.5 km
- Reload time
- 1.0 s
- Rate of fire
- 33.3 rounds/min
- 180° turn time
- 7.2 s
- Maximum dispersion
- 44 m
Gun layout
- Mount
- 140 mm/40 11th Year Type
- Mounts
- 1
- Barrels each
- 1
Automatic armament
Secondary battery
Underwater armament
Torpedoes
Type95 mod. 3
- Maximum range
- 6.0 km
- Maximum damage per hit
- 10,800
- Reload time
- 35 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
- 120.0
- Consumption rate (API value)
- 1.0
- Regeneration rate (API value)
- 2.0
Underwater handling
- Maximum underwater speed
- 13 knots
- Maximum dive/ascent speed
- 2.4 knots
- Dive-plane shift time
- 25.9 s
Sonar ping
- Maximum range
- 6.0 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
Modules, hull and progressionTechnical data
Default hull
- Hull hit points
- 24,200
- Main-battery barrels
- 1
- Torpedo tubes
- 6
Engine
- Published maximum speed
- 29.0 knots
Module research tree
Names, research prices and defaults are reported directly by the API.
Type95 mod. 3
Default- Type
- Torpedoes
Type8 mod. 1
Default- Type
- Sonar
Propulsion: 9,400 hp
Default- Type
- Engine
I-56
Default- Type
- Hull
140 mm/40 11th Year Type
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
ModernizationReduces 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
Aiming Systems Modification 1
Modernization- Credits
- 500,000
Damage Control System Modification 2
Modernization- Credits
- 1,000,000
Main Battery Modification 2
Modernization- Credits
- 500,000
Torpedo Tubes Modification 3
Modernization- Credits
- 2,000,000
- Available module groups
- 10
- Compatible upgrades
- 8
- Upgrade slots
- 5
- Published battle levels
- 8–10
Cross-nation comparison
Ships that fill a similar slot
Closest same-tier, same-class matches from other nations, ranked by published base statistics.
