Ship:I-56

VIII

11,000 doubloons

I-56 — Japan Premium Tier VIII Submarine.

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.

Pros

• High alternative torpedo efficiency
• Large HP pool
• Main battery gun available

Cons

• Low underwater speed
• Low dive capacity

Ship Stats

Hull Information

SURVIVABILITY
• Hit Points	24200
• Torpedo protection damage reduction (%)	0%

ARMOR DETAIL
• Belt (mm)	19
• Deck (mm)	16
• Superstructure (mm)	19
• Extremities (mm)	19

MANEUVERABILITY
• Maximum speed (kt)	29.0
• Turning circle radius (m)	590
• Rudder-shift time (sec)	9.0

CONCEALMENT
• Detectability by sea (km)	7.12
• Detectability by air (km)	2.63
• Detectability after firing main guns in smoke (km)	2.96
• Detectability by depths (km)	2.63

SUB STATS
• Concealment at periscope depth (km)	2.63
• Maximum submerged speed (kt)	13.0
• Diving plane shift time (sec)	25.9
• Maximum diving speed (m/s)	2.4
• Dive capacity	120
• Dive depletion rate	1.0
• Dive recharge rate	2.0

Main Battery

MAIN BATTERY
• Arrangement	1×1 140mm
• Firing range (km)	8.5
• Reload time (sec)	1.8
• Rate of fire (shots/min)	33.3
• 180° turn time (sec)	7.2

DISPERSION
• Dispersion type	Elbing dispersion
• Dispersion formula	Dispersion (m) = 3.5 × range(km) + 15
• Sigma	2.0
• Maximum dispersion (m)	44
• Dispersion at 5 km	32
• Dispersion at 8.5 km	45

SAP SHELL
• Name	140mm CS Type 0
• Maximum damage	2750
• Shell velocity (m/s)	700
• Shell weight (kg)	38
• Penetration (mm)	39
• Fuse time (sec)	0.03
• Ricochet start (°)	80
• Always ricochet (°)	85
• Normalisation (°)	45
• Arming threshold (mm)	25

Sonar

SONAR
• Sonar reload time (sec)	6.5
• Ping velocity (m/s)	600
• Ping width (m)	18
• Single ping duration (sec)	25.0
• Double ping duration (sec)	55.0
• Maximum ping range (km)	6.0

Torpedoes

SUBMARINE TORPEDOES	HOMING	STANDARD
• Torpedo name	Type95 mod. 3	Type95 mod. 3 MZ
• Damage	10800	16367
• Range (km)	6.0	12.5
• Speed (kt)	78	73
• Detectability (km)	2.1	1.9
• Reload (s)	35	35
• Bow torpedo tubes	6
• Stern torpedo tubes	0
• Torpedo loaders (bow/stern)	6/—

Compatible Upgrades

Slot 1
Slot 2
Slot 3
Slot 4
Slot 5

Consumables

• Slot 1: Damage Control Party  (3 charges, 15.0s action, 60.0s cooldown)
• Slot 2: Hydrophone  (5 charges, 1.0s action, 30.0s cooldown)
• Slot 3: Reserve Battery Unit  (2 charges, 30.0s action, 90.0s cooldown)

Gallery

WoWs Gallery

Historical Gallery

Ship Change Log

• Preliminary characteristics.
• Changes to speed and turning circle radius — Surface speed: from 27 to 29 knots. — Underwater speed: from 15 to 13 knots. — Turning circle radius: from 750 to 670 meters.
• Removed the Hydrophone consumable.
• Added the Echo-Ranging Set consumable with the following settings — Action time: 30 s. — Reload time: 80 s. — Interval between pings: 6 s. — Ship bearing effect duration: 4 s. — Ship bearing distance: 7 km. — Number of charges: 1.
• Added the Reserve Battery Unit consumable with the following settings — Reload time: 90 s. — Action time: 30 s. — Number of charges: 2.
• Update 0.11.6:
  • Available for testing by supertesters in the game starting from Update 0.11.6.
• Update 0.11.7:
  • Renamed the Echo-Ranging Set consumable to the Hydrophone consumable.
  • Renamed the Low-Frequency Hydrophone consumable to the Submarine Surveillance consumable.
  • Disabled guaranteed detection for the submarine in the submerged position.
  • The visual effects above the submarine when using sonar is now also displayed for the submarine herself.
  • Main battery reload time reduced from 2.25 to 1.8 s.
• Update 0.11.8:
  • Added a visual distinction between the effect of acoustic homing torpedoes and regular ones.
  • Fixed a bug that caused Credits to be deducted for resupplying only a part of the submarine's ammunition.
  • Fixed a bug that caused tooltips to overlap the screen with the composition of teams when playing the submarine.
• Update 0.11.9:
  • Available in random bundles in the Armory for doubloons.
  • Main Battery Modification 2 added in upgrade slot 3.
  • Aiming Systems Modification 1 added in upgrade slot 3.
  • Readded the ping movement effect.
  • Added a special indicator to notify players when there is little diving capacity remaining.
  • Updated the set of sound effects for torpedo launching.
  • Updated the icon for acoustic homing torpedoes.
• Update 12.1:
  • Fixed a bug that caused the main battery gun on the submarine to start rotating underwater when re-entering a battle.
  • Available in the Armory and Premium Shop permanently on 17 March 2023, during Update 12.1.
• Update 13.1:
  • Turning circle radius reduced from 670 to 590 m.
• Update 13.2:
  • Torpedoes now do 10% of maximum damage up to 2.9 km, and then scale to 100% damage from 2.9 to 3 km.
  • Stock homing torpedoes changed:
    • Arming distance reduced from 419 to 21 m.
  • Stock conventional torpedoes changed:
    • Maximum damage increased from 14,300 to 16,367.
    • Arming distance reduced from 902 to 20 m.
• Update 13.7:
  • Hydrophone consumable charges increased from 1 to 4.
• Update 14.7:
  • Hydrophone consumable parameters changed:
    • Range increased: 7 to 9km
    • Cooldown time reduced: 80 to 30s
    • Number of charges increased: 4 to 5