Izumo

13.10

Izumo

Battleship | Japan | Tier IX

Tech Tree Position

stock

 top

General

Research price178000 exp

Purchase price15,900,000

Hit Points76,500

Main Battery

IDS_PJGM100_410MM50_RF3 х 3 pcs.

Rate of Fire2 shots/min.

Reload Time30 sec.

Rotation Speed4.5 deg./sec.

180 Degree Turn Time40 sec.

Firing Range19.71 km.

Maximum Dispersion225 m.

HE Shell410 mm HE Type0

Maximum HE Shell Damage6,500

Chance of Fire on Target Caused by HE Shell30 %

Initial HE Shell Velocity869 m./s.

HE Shell Weight938.5 kg.

AP Shell410 mm AP/APC Type91

Maximum AP Shell Damage12,900

Initial AP Shell Velocity870 m./s.

AP Shell Weight1020 kg.

Secondary Armament #1

127 mm/40 Type 89 on a Model A1 Mod.3 mount12 х 2 pcs.

Firing Range6.95 km.

Rate of Fire10 shots/min.

Reload Time6 sec.

HE Shell127 mm HE Type0

Maximum HE Shell Damage2,100

Initial HE Shell Velocity725 m./s.

Chance of Fire on Target Caused by HE Shell8 %

Secondary Armament #2

155 mm/60 3rd Year Type in a triple turret1 х 3 pcs.

Firing Range6.95 km.

Rate of Fire5 shots/min.

Reload Time12 sec.

HE Shell155 mm HE Type0

Maximum HE Shell Damage2,600

Initial HE Shell Velocity925 m./s.

Chance of Fire on Target Caused by HE Shell10 %

AA Defense

127 mm/40 Type 89 on a Model A1 Mod.3 mount12 х 2 pcs.

. . . Average Damage per Second121.2

. . . Firing Range5.01 km.

25 mm/60 Type 96 on a single mount24 х 1 pcs.

. . . Average Damage per Second43.2

. . . Firing Range2.49 km.

25 mm/60 Type 96 on a triple mount12 х 3 pcs.

. . . Average Damage per Second39.6

. . . Firing Range2.49 km.

Maneuverability

Maximum Speed27.16 knot

Turning Circle Radius890 m.

Rudder Shift Time26 sec.

Concealment

Surface Detectability Range16.67 km.

Air Detectability Range12.53 km.

Battle Levels

12345678910

13.10

Izumo

Battleship | Japan | Tier IX

Tech Tree Position

stock

 top

General

Research price178000 exp

Purchase price15,900,000

Hit Points78,900

Main Battery

IDS_PJGM100_410MM50_RF3 х 3 pcs.

Rate of Fire2 shots/min.

Reload Time30 sec.

Rotation Speed4.5 deg./sec.

180 Degree Turn Time40 sec.

Firing Range21.68 km.

Maximum Dispersion225 m.

HE Shell410 mm HE Type0

Maximum HE Shell Damage6,500

Chance of Fire on Target Caused by HE Shell30 %

Initial HE Shell Velocity869 m./s.

HE Shell Weight938.5 kg.

AP Shell410 mm AP/APC Type91

Maximum AP Shell Damage12,900

Initial AP Shell Velocity870 m./s.

AP Shell Weight1020 kg.

Secondary Armament #1

127 mm/40 Type 89 on a Model A1 Mod.3 mount12 х 2 pcs.

Firing Range6.95 km.

Rate of Fire10 shots/min.

Reload Time6 sec.

HE Shell127 mm HE Type0

Maximum HE Shell Damage2,100

Initial HE Shell Velocity725 m./s.

Chance of Fire on Target Caused by HE Shell8 %

Secondary Armament #2

155 mm/60 3rd Year Type in a triple turret1 х 3 pcs.

Firing Range6.95 km.

Rate of Fire5 shots/min.

Reload Time12 sec.

HE Shell155 mm HE Type0

Maximum HE Shell Damage2,600

Initial HE Shell Velocity925 m./s.

Chance of Fire on Target Caused by HE Shell10 %

AA Defense

127 mm/40 Type 89 on a Model A1 Mod.3 mount12 х 2 pcs.

. . . Average Damage per Second121.2

. . . Firing Range5.01 km.

25 mm/60 Type 96 on a single mount24 х 1 pcs.

. . . Average Damage per Second43.2

. . . Firing Range2.49 km.

25 mm/60 Type 96 on a triple mount28 х 3 pcs.

. . . Average Damage per Second92.4

. . . Firing Range2.49 km.

Maneuverability

Maximum Speed28 knot

Turning Circle Radius890 m.

Rudder Shift Time19.7 sec.

Concealment

Surface Detectability Range16.67 km.

Air Detectability Range12.53 km.

Battle Levels

12345678910

IX

15,900,000

Izumo — Japanese Tier IX battleship.

One of the draft designs for a "super battleship" concept, preceding the appearance of the Yamato-class battleships. This design featured heavy armor and a sufficiently high speed complemented by powerful main battery guns that were unconventionally placed in three turrets located at the ship's front end.

Modules

	Rate of Fire (shots/min)	180° Turn Time (sec)	Maximum Dispersion (m)	Maximum HE Shell Damage (HP)	Chance of Fire on Target Caused by HE Shell (%)	Maximum AP Shell Damage (HP)		Research price (exp)	Purchase price ()
410 mm/50 10th Year Type in a triple turret	2	40	225	6,500	30	12,900		0	1,300,000

	Hit Points (HP)	Armor (mm)	Armor (mm)	Main Turrets (pcs.)	Secondary Gun Turrets (pcs.)	AA Mounts (pcs.)	Torpedo Tubes (pcs.)	Hangar Capacity (pcs.)		Research price (exp)	Purchase price ()
Izumo (A)	76,500	19	508	3	12/1	24/12/12				0	1,800,000
Izumo (B)	78,900	19	508	3	12/1	28				60,000	5,500,000

	IDS_SHIP_PARAM_SUO_INCREASE_DIST (%)	Maximum Firing Range (km)		Research price (exp)	Purchase price ()
Type9 mod. 1		0		0	1,000,000
Type9 mod. 2		0		26,000	2,400,000

	Maximum Speed (knot)		Research price (exp)	Purchase price ()
Propulsion: 132,000 hp	27.2		0	550,000
Propulsion: 135,000 hp	28		16,000	1,000,000

Compatible Upgrades

Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6

Player Opinion

Performance

Once considered by many to be among the worst Tier IX ships in the game, Izumo has seen a variety of improvements since the launch of World of Warships. While her stock hull still has mediocre secondaries, a weak anti-aircraft battery, and bad turning characteristics, the AP shell penetration of Hull (A) has been significantly improved, allowing her guns (at least) to remain competitive against the likes of Iowa and Friedrich der Große beyond 15km. The central weather deck was increased to 57mm to mitigate damage from high explosive shells from 203mm and IFHE 152mm guns. The concealment, once among the worst of any ship in the game, has been considerably improved, though still on the lower end of the spectrum for Tier IX battleships.

Izumo’s armor on her sharply-angled bow can deflect most AP shells fired at the hull, save for ships whose guns can overmatch 32mm bow plating. Once Hull (B) is unlocked, she gains somewhat better secondaries and AA. While the middle weather deck was buffed, she remains vulnerable to full penetration damage from high explosive shells in upper belt, bow, and stern and the fully upgraded AA suite is not adequate enough to fend off air attacks, even with support from allies. Pointing her bow at enemies and reversing at mid range — similar to how many captains play Dunkerque, Iowa, and North Carolina — is a valid tactic in Izumo, and is quite effective against enemy AP rounds. Like all high tier battleships, she remains vulnerable to fire.

Pros:

• Main battery gun penetration is excellent, with very high shell velocity for a battleship.
• Great dispersion due to IJN battleship dispersion and sigma.
• Small superstructure means that incoming shells don't have a whole lot to hit, and the 57mm weather deck over the middle shatters all cruiser HE, besides Goliath.
• Good belt armour.
• Great angling potential due to guns having favourable arcs forwards.

Cons:

• Izumo is a large target (larger than Yamato!).
• Has one less gun barrel compared to Amagi.
• In many respects, Izumo is inferior to Amagi - including size, speed, torpedo protection, and manoeuvrability.
• Second turret's tall barbette makes the turret vulnerable to getting knocked out.
• The stern's armour is very weak.
• The middle turret does not have full 360 degree rotation, even though it seems possible.
• While she has a turtleback, it is not as effective as the German's, meaning turning broadside can result in multiple citadels.
• Turret placement leaves ship extremely vulnerable to attacks in aft arc and makes the No. 3 turret somewhat difficult to use.
• Though buffed, concealment is still mediocre, with only the Friedrich der Große and Minnesota being worse.

Research

Unlocking and investing in both hull upgrades will greatly improve Izumo’s handling and performance. With those out of the way, either of the remaining modules can be improved in whichever order suits individual captains as they are relatively minor buffs.

Optimal Configuration

Upgrades

The recommended upgrades for Izumo are as follows:

• Slot 1: Main Armaments Modification 1
• Slot 2: Damage Control System Modification 1 
• Slot 3: Aiming Systems Modification 1 *
• Slot 4: Damage Control System Modification 2
• Slot 5: Concealment System Modification 1 
• Slot 6: Main Battery Modification 3 *

Because of the limited field of fire of Izumo's secondary batteries, a secondary build is not recommended.

Slot 3 allows for further specialization. Generally, Aiming Systems Modification 1 is recommended because it reduces shell dispersion of the main and secondary armaments. Main Battery Modification 2 is worth serious consideration to speed the glacial turret rotation. To increase the effectiveness of the anti-aircraft armament, mount AA Guns Modification 1 .

Slot 6 gives players options to finalize their build. For gunnery, mount Main Battery Modification 3 to decrease the reload time of the main battery at the cost of turret rotation. Auxiliary Armaments Modification 2 improves the effectiveness of both secondaries and AA.

Commander Skills

Recommended Commander Skills
Cost (points)	Attack			Defense
1	Gun Feeder -40% time to switch shell type. ★★	Demolition Expert +1% chance of main and secondary HE shells causing a fire +15% to the fragmentation damage area of HE ordnance when firing at submarines.	Consumables Specialist −7.5% cooldown time of all Consumables except:  Damage Control Party ,  Repair Party . ★	Emergency Repair Specialist -3% cooldown time of Damage Control Party  and Repair Party . ★★	Incoming Fire Alert Receive a warning about a salvo fired at your ship from more than 4.5 km.	Preventive Maintenance −30% chance of main armament, engines, steering becoming incapacitated +15% to HP of secondary and AA guns. ★
2	Grease the Gears +20% main turret traverse speed. ★★★	Inertial Fuse for HE Shells +25% armor penetration of HE shells. Base fire chance reduced by half.	Brisk So long as the ship remains undetected: +10% ship speed. ★	Vigilance +25% detection range of enemy torpedoes +7% damage reduction of Torpedo Protection System. . ★★	Priority Target The detection indicator will show the number of enemies targeting you with main battery. ★★	AAA & ASW Expert +15% continuous AAA and flak damage . +10% damage inflicted by depth charges. While AAA is active: −40% ship consumables reload time..
3	Super-Heavy AP Shells +7.5% AP shell damage −10% fire and flood damage received +25% fire and flood duration.	Long-Range Secondary Battery Shells +20% secondary battery firing range.	Adrenaline Rush -0.2% reload time of all armaments per 1% HP lost +0.2% AA continuous damage per 1% HP lost. ★★★	Basics of Survivability -15% repair, fire, and flooding duration. ★★★	Improved Repair Party Readiness −0.8% reload time of Repair Party each time your ship receives potential damage equal to 100% of the ship's base HP. After receiving 2M HP potential damage: +1 charge of Repair Party ..	Focus Fire Training In an active priority AA sector: •  +1.5% (to 5%) immediate damage. •  +25% continuous damage. •  +1 flak burst per salvo. −10% aircraft preparation time. −15% reload time of Airstrike armament..
4	Furious 1st fire / flood   −10% Main battery reload time 2nd etc. (up to 5), each   −5% Main battery reload time	Manual Secondary Battery Aiming −10% secondary battery reload time. −10% secondary battery dispersion. When firing at a manually selected target: dispersion gradually improves from -25% to -50%.	Close Quarters Combat -10% reload time of main battery if an enemy ship is spotted within secondary range.	Emergency Repair Expert Damage Control Party  and Repair Party : +1 charge (each). +10% action time . ★★★	Concealment Expert -10% detectability range of the ship. ★★★	Fire Prevention Expert -10% risk of fire. Three fires maximum. ★★★
Key: ★★★ - Extremely Useful      ★★ - Frequently Useful      ★ - Occasionally Useful     No stars - Not Useful

Consumables

Players can equip the following consumables on Izumo:

• Slot 1: Damage Control Party 
• Slot 2: Repair Party 
• Slot 3: Spotting Aircraft  or Catapult Fighter 

Signals

Izumo comes with 21 signal flag slots. The three most important flags are India Delta, Juliet Yankee Bissotwo and India Yankee; all of which will improve your survivability. If the captain goes with the Secondary Build, the addition of Mike Yankee Soxisix will further improve the performance of Izumo’s secondaries.

Recommended Signal Flags
Combat
Juliet Charlie -100% to the risk of magazine detonation.	Juliet Yankee Bissotwo -20% to flooding duration. ★★★	India Yankee -20% to fire duration. ★★★	Hotel Yankee -20% to damage received when ramming the enemy. +50% to damage dealt when ramming the enemy.	Victor Lima +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +4% chance of torpedoes causing flooding.	India X-Ray +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +5% to the risk of your ship's magazine detonating.
Juliet Whiskey Unaone +15% chance of causing flooding. +5% to the risk of your ship's magazine detonating.	Mike Yankee Soxisix +5% to secondary battery maximum firing range. -5% to maximum dispersion of secondary battery shells. -5% to secondary battery loading time. ★★	November Echo Setteseven +5% continuous AA damage at all ranges. +5% damage from flak bursts. ★★	Sierra Mike +5% to the ship's maximum speed. ★	November Foxtrot -5% reload time on all consumables. ★★	India Delta +20% to the amount of HP recovered when Repair Party  is used. ★★★
X-Ray Papa Unaone +10% action time of a Smoke Generator .	Sierra Bravo +10% action time of Hydroacoustic Search  -10% reload time of Defensive AA Fire .

Note: Use of the Juliet Charlie signal makes detonation impossible.

Gallery

• 

  An Friedrich der Große falls to an enemy Izumo after failing the drive-by.

Historical Info

Izumo (出雲 "Outward Cloud" named for the Izumo province) in game was the A-140-J2, one of the alternate design proposals in the project that would result in the famous Yamato-class. In 1936, after Japan had left the League of Nations and renounced the Washington Naval Treaty, the Imperial Japanese Navy contacted leading naval engineer Yuzuru Hiraga to design a new battleship not bound by treaty limits. Hiraga drew experience from designing the Yubari, Fubuki, and Mogami classes to help him design the new battleship, designated A-140. In all, 24 preliminary designs were submitted to Naval Command for review, with varying turret configurations and endurance. The A-140-J series designs were notable in that they were the only ones to mount 41 cm guns, as opposed to the "Type 94" guns that were in reality 46 cm caliber; the design of these ships were more mindful of the existing docks and slipways in Japan at the time. The A-140-J2 has a turret configuration similar to the HMS Nelson and had a hybrid engine concept. However, due to advancements in fire-control methods and the failures of hybrid-engines in the submarine tender Taigei and the seaplane tender Mizuho, the plans were scrapped in favor of Hiraga’s 18-inch armed conventional layout, which would later become Yamato.

The design, known as A-140-J2, was never built and therefore never named; the in-game name was given to the ship by Wargaming in accordance with the Imperial Japanese tradition to name battleships after provinces of Japan. There have been two real Izumos: the IJN Izumo was an armored cruiser built at the end of the 19th century that served in the Imperial Japanese Navy until 1945 and the JS Izumo which is a helicopter destroyer currently in the service of the Japan Maritime Self-Defense Force.

Historical Inaccuracies

• Actual name is A-140-J2. The real Izumo was an armored cruiser that was still in IJN service during World War II, serving until July 1945. As such it is extremely unlikely that A-140-J2 would have also been named Izumo.
• As A-140-J2 was merely a preliminary design, both hull upgrades are fictitious WW2 refits.
• Similarly, no work is known to have been conducted on 41cm guns by the IJN following the Nagato class' 41cm/45 3rd Year Type.
• Planned horsepower was always 135,000 hp. The 132,000 hp downgrade is fictitious.
• The triple mount version of the 25 mm/60 Type 96 anti-aircraft gun entered service in 1941; A-140-J2 was designed in 1935.

Historical Gallery

• 

  Illustration of A-140-J2.

• 

  The 24 different preliminary designs for the Yamato.

• 

  Blueprints of the triple turret.

References

Ship Change Log

See here for links to Update notes.

• Added to the game in Update 0.3.1.
• Update 0.3.1.4:
  • Turret rotation speed increased to 4.5 deg / s.
  • Secondary battery firing range increased to 7 km.
• Update 0.5.2:
  • Increased rudder shift times:
    • On the stock hull by +2.84 s.
    • On the upgraded hull by +3.59s.
  • Experience earnings increased by 9%.
  • Credit earnings increased by 5%.
• Update 0.5.3.2:
  • The Type 14 camouflage was renamed to Type 16.
• Update 0.5.5:
  • Top-end shells were installed for all hull variants (stock shells removed).
• Update 0.5.11:
  • The armored model of the hull was refined.
• Update 0.6.2:
  • The national flag was moved from the stern to the mast.
• Update 0.6.5:
  • Improved the appearance with the use of a special technology for drawing thin elements (mainly rigging).
• Update 0.6.12:
  • Detectability when firing main guns in smoke changed to 19.21 km.
• Update 0.6.13:
  • The durability of the bow compartment on the B hull was increased by 100 units. The change does not affect the ship's HP in any way.
• Update 0.7.2:
  • Players who have collected the "Rewards" sub-collection of the "Yamomoto Isoroku" collection can use an alternate permanent camouflage color.
• Update 0.7.4:
  • Fine textures of the ship were improved.
• Update 0.7.6:
  • Improved display of thin elements on the hull.
• Update 0.7.7:
  • The thickness of the upper deck armor was increased from 32 mm to 57 mm.
  • Detectability by ships decreased from 19.26 to 17.19 km.
  • Detectability when firing main guns in smoke decreased from 19.21 to 16.8 km.
• Update 0.7.11:
  • Armor-piercing shells of 155-mm secondary battery guns were replaced with high-explosive shells.
• Update 0.7.12:
  • Increased armor penetration of the 410 mm AP / APC Type 91 AP shell.
• Update 0.8.0:
  • Sigma increased from 1.8 to 2.0 σ.
• Update 0.9.1:
  • Fixed armoring of the conning tower.
• Update 0.9.3:
  • Minor fixes to textures and ship model.
• Update 0.9.6:
  • Fixed geometry and textures.
• Update 0.9.7:
  • Minor fixes to geometry and textures.
• Update 0.10.2:
  • Fixed geometry and textures of the ship.
• Update 0.10.3:
  • Hulls A and B were removed, hull C was renamed to B; a new stock hull was created on the basis of hull C with a modified air defense composition.
• Update 0.10.5:
  • Fixed geometry and textures of the ship.
• Update 0.10.10:
  • Minor change to the secondary battery firing range (unlisted change).
• Update 0.11.1:
  • Minor corrections to geometry and textures of the ship.

Ships of Japan

Battleships