Ishizuchi

13.9

Battleship | Japan | Tier IV

Tech Tree Position

Battle Levels

12345678910

IV

2,500

Ishizuchi — Japanese premium Tier IV battleship.

One of the draft designs for a battlecruiser of the Imperial Japanese Navy that subsequently materialized as the Kongo class. The ship had a high speed and an impressive artillery. The arrangement of main turrets allowed her to fire a full broadside with all main battery guns. The known drawback of the ship's design was a very weak horizontal armor.

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 ()
305 mm/45 41st Year Type in a twin turret	2.4	41.9	194	5,200	32	8,000		0	0

	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 ()
Ishizuchi	45,700	13	254	5	6/16	6				0	0

	IDS_SHIP_PARAM_SUO_INCREASE_DIST (%)	Maximum Firing Range (km)		Research price (exp)	Purchase price ()
Type4 mod. 1		0		0	0

	Maximum Speed (knot)		Research price (exp)	Purchase price ()
Propulsion: 64,000 hp	27.5		0	0

Compatible Upgrades

Slot 1
Slot 2

Player Opinion

Performance

Warning: The data presented in the AA Defense sidebar section may be incorrect.
Refer to the in-game Port screens for more useful data.

Ishizuchi, while marketed as a Tier IV battleship, might properly be called a battlecruiser. She features quite good maneuverability and speed for a battleship, but her armor simply cannot take the punishment of her contemporaries like Kaiser or Wyoming. At first glance, she heavily resembles the Tier V Kongo, which is largely correct: Ishizuchi is essentially a Kongo prototype. She looks a lot like her Tier V cousin, but that's where the similarities end. Ishizuchi has a bearable rudder shift time of less than 13 seconds and a top speed bordering 28 knots, making her one of the faster battleships in the game. She also features five (5) twin-gun turrets containing decent 305mm guns. Unfortunately, she suffers from absolutely terrible anti-aircraft defenses and almost no armor, meaning she must be careful and look at the map often for torpedo bombers and enemy battleships.

Her 305mm armor-piercing rounds will also give players some headaches. Don't expect them to reliably penetrate enemy battleships; hilariously, she is better off firing high explosive rounds at enemy battlewagons. With a 32% base fire chance out of her HE shells, she can reliably light enemy battleships on fire and keep them burning for extended periods of time. Thankfully, her AP rounds are perfectly serviceable against enemy cruisers, due to a low chance of overpenatrating the citadel.

Pros:

Great maneuverability for a battleship.
Good health pool for her tier at nearly 50,000 hit points.
Best-in-tier reload time of 25 seconds on her main battery.
Excellent HE shell performance for her tier.
Better-than-average turret traverse for IJN battleships
Range is good for a battleship of her tier at 15.3 km
Lots of secondary guns; destroyers trying to close with her will get a nasty surprise. Unusual for a battleship, her excellent HE performance and heavy secondary battery make her an effective destroyer hunter.
305mm guns deadly to cruisers.

Cons:

Terrible anti-aircraft suite.
Paper-thin armor; most battleships and some cruisers can penetrate her main armor belt.
305mm AP shells are defective historically, and shatter on practically everything.
High surface-detection of over 15 km.
Abysmal Anti-torpedo protection.
Easily citadeled between the #3 and #4 turrets due to a raised citadel.

Research

As a premium ship, Ishizuchi doesn't have any upgrades to research.

Optimal Configuration

Upgrades

The recommended upgrades for Ishizuchi are as follows:

Slot 1: Main Armaments Modification 1 *
Slot 2: Damage Control System Modification 1

Slot 1 provides players with the first option in choosing a desired role. Typically, Main Armaments Modification 1 is recommended to provide additional survivability to the main battery, but players who desire to specialize in the secondary armament should choose Auxiliary Armaments Modification 1 .

Commander Skills

The following information is provided for players who wish to create a permanent captain for the ship. Those players who are retraining captains or using the ship to gain extra experience for a captain should consult the page relevant to the ship to which the captain will be assigned. Be aware that Manual Fire Control for Secondary Armament does not provide the accuracy bonus it does to ships of tier 7 and up; it may be better to not have it.

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

Ishizuchi equips the following consumables:

Slot 1: Damage Control Party 
Slot 2: Repair Party

Camouflage

As a premium ship, Ishizuchi comes with Default permanent camouflage and a set of permanent combat bonuses.

Signals

Survivability flags are highly recommended in order to mitigate the damage she will receive in battle.
Flags that buff HE-fire chance are recommended in order to maximize on Ishizuchi's potent HE shells and fearsome fire-chance.
Sierra Mike is favourably recommended in order to maximize on Ishizuchi's battlecruiser top speed.

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

Forward oblique-profile
Rearward oblique-profile
Silhouette of quarterdeck and aft turrets
Close-up of the forward turrets and superstructure
Top-view silhouette

References

Ship Change Log

See here for links to Update notes.

Available for testing by supertesters in the game starting from Update 0.3.1.
Update 0.3.1.4:
- Increased rotation speed of gun turrets.
- The dispersion spread of the main battery guns was reduced.
- The battle tier was reduced - now can only see battles of Tiers IV and V.
First appeared on sale in July 2015.
Update 0.5.1.2:
- Added to the Japanese tech tree as a premium Tier IV ship.
Update 0.5.3.2:
- The Type 6 camouflage was renamed Type 9.
Update 0.5.5:
- Increased protection of citadel spaces and steering modules from large-caliber HE shell splash damage.
- Main battery reload reduced from 30 to 25 s.
Update 0.5.6:
- Added for sale for doubloons directly in the game client (before was only available in the premium store).
Update 0.5.11:
- The armored model of the hull was refined.
Update 0.6.2:
- Improved appearance with the use of special technology for improved rendering of thin elements (rigging, etc.).
- The national flag was moved from the stern to the mast.
Update 0.6.3:
- Base firing range increased from 12,900 to 15,300 m.
- Base detectability from ships was reduced from 16,560 to 15,200 m.
Update 0.6.9:
- Improved ship geometry.
Update 0.6.11:
- Fixed a bug that caused the main guns to pass through elements of the ship when in restricted firing angles.
Update 0.6.12:
- Detectability when firing main guns in smoke changed to 11.81 km.
- Removed the nameplate on the stern.
Update 0.6.14:
- The plates with inscriptions were returned. The changes do not affect the game balance in any way.
Update 0.6.15:
- A was been added to the "Type 9" permanent camouflage - a -10% discount to the cost of post-battle maintenance.
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 0.7.4.1:
- Added to the Japanese tech tree for purchase with doubloons.
Update 0.7.6:
- Improved display of thin elements on the hull.
Update 0.7.7:
- Became unavailable for purchase with doubloons in the game client.
Update 0.7.11:
- Armor-piercing shells of 152-mm secondary battery guns were replaced with high-explosive shells.
- Became available for purchase with doubloons in the game client.
Update 0.9.10:
- Fixed a bug due to which part of the armor was missing in the barbettes.
Update 0.10.0:
- The firing range of the secondary battery was increased to 4 km.
Update 0.10.9:
- Available for purchase in the Armory for 10,000 Community Tokens.
Update 0.11.4:
- No longer available for purchase in the Armory via Community Tokens.
Update 0.11.6:
- Made temporarily unavailable for purchase in the Armory due to technical issues.

Ships of Japan

Destroyers	II Tachibana • II Umikaze • II Tachibana Lima • III Wakatake • IV Isokaze • V Minekaze • V Fūjin • V Kamikaze • V Kamikaze R • V Mutsuki • VI [[Ship:Mutsuki (< 01.12.2016)\|Mutsuki (< 01.12.2016)]] • VI Fubuki • VI Hatsuharu • VI Shinonome B • VI Shinonome • VII [[Ship:Hatsuharu (< 01.12.2016)\|Hatsuharu (< 01.12.2016)]] • VII Akatsuki • VII Shiratsuyu • VII Yūdachi • VIII [[Ship:Fubuki (< 01.12.2016)\|Fubuki (< 01.12.2016)]] • VIII Akizuki • VIII Kagerō • VIII Asashio • VIII HSF Harekaze II • VIII Asashio B • VIII HSF Harekaze • VIII AL Yukikaze • IX [[Ship:Kagerō (< 01.12.2016)\|Kagerō (< 01.12.2016)]] • IX Yūgumo • IX Kitakaze • IX Minegumo • IX STAR Kitakaze • X Shimakaze • X Harugumo • X Hayate • X AL Shimakaze • X [[Ship:[Shimakaze]\|[Shimakaze]]] • ★ Yamagiri
Cruisers	I Hashidate • II Chikuma • III Tenryū • III Katori • IV Yūbari • IV Kuma • IV Iwaki Alpha • V Furutaka • V Agano • V Yahagi • VI Aoba • VI Gokase • VII Myōkō • VII Omono • VII Tokachi • VII Maya • VII ARP Myōkō • VII ARP Ashigara • VII ARP Haguro • VII Southern Dragon • VII Eastern Dragon • VII ARP Nachi • VIII Mogami • VIII Tone • VIII Atago • VIII Shimanto • VIII Atago B • VIII ARP Takao • VIII ARP Maya • VIII Tone 2 • VIII Tone 3 • IX Ibuki • IX Takahashi • IX Azuma • IX AL Azuma • IX Chikuma II • IX Chikuma II Golden • IX BA Takahashi • X Zaō • X Yodo • X Yoshino • X Yoshino B • X Kitakami • X Zaō CLR • X [[Ship:[Zaō]\|[Zaō]]]
Battleships	II Mikasa • III Kawachi • IV Myōgi • IV Ishizuchi • V Kongō • V ARP Kongō • V ARP Kirishima • V ARP Haruna • V ARP Hiei • V HSF Hiei • VI Fusō • VI Mutsu • VI Ise • VI Ise 2 • VI Ise 3 • VII Nagato • VII Ashitaka • VII Hyūga • VIII Amagi • VIII Yumihari • VIII Kii • VIII Ignis Purgatio • VIII Ragnarok • IX Izumo • IX Adatara • IX Musashi • IX Hizen • IX Iwami • IX Daisen • IX Tsurugi • IX Iwami B • X Yamato • X Bungo • X Shikishima • X ARP Yamato • X [[Ship:[Yamato]\|[Yamato]]] • ★ Satsuma
Aircraft Carriers	IV [[Ship:Hōshō (< 23.01.2019)\|Hōshō (< 23.01.2019)]] • IV Hōshō • V [[Ship:Zuihō (< 23.01.2019)\|Zuihō (< 23.01.2019)]] • VI [[Ship:Ryūjō (< 23.01.2019)\|Ryūjō (< 23.01.2019)]] • VI Ryūjō • VII [[Ship:Hiryū (< 23.01.2019)\|Hiryū (< 23.01.2019)]] • VII [[Ship:Kaga (< 23.01.2019)\|Kaga (< 23.01.2019)]] • VIII [[Ship:Shōkaku (< 23.01.2019)\|Shōkaku (< 23.01.2019)]] • VIII Shōkaku • VIII Kaga • VIII Kaga B • IX [[Ship:Taihō (< 23.01.2019)\|Taihō (< 23.01.2019)]] • X [[Ship:Hakuryū (< 23.01.2019)\|Hakuryū (< 23.01.2019)]] • X Hakuryū • X Shinano • X [[Ship:[Hakuryū]\|[Hakuryū]]] • ★ Sekiryu

Battleships

Netherlands
U.S.A.	III South Carolina • IV Wyoming • IV Arkansas Beta • V New York • V Oklahoma • V Texas • VI New Mexico • VI Arizona • VI W. Virginia '41 • VII Colorado • VII Florida • VII West Virginia '44 • VII California • VII Colorado 2 • VIII North Carolina • VIII Kansas • VIII Nebraska • VIII Alabama • VIII Massachusetts • VIII Alabama VL • VIII Constellation • VIII Massachusetts B • VIII Alabama ST • VIII North Carolina CLR • VIII Volunteer State • VIII North Carolina 2 • IX Iowa • IX Minnesota • IX Delaware • IX Missouri • IX Kearsarge • IX Illinois • IX Kearsarge B • IX Georgia • IX Iowa 2 • X Montana • X Vermont • X Louisiana • X Ohio • X Rhode Island • X Wisconsin • X BA Montana • X [[Ship:[Montana]\|[Montana]]] • X Montana 2 • X Utah • ★ Maine
Europe	V Viribus Unitis • IX Karl XIV Johan
Germany	III Nassau • III Von der Tann • III König Albert • IV Kaiser • IV Moltke • V König • V Derfflinger • VI Bayern • VI Mackensen • VI Prinz Eitel Friedrich • VII Gneisenau • VII Prinz Heinrich • VII Scharnhorst • VII AL Prinz Heinrich • VII Scharnhorst B • VII Scharnhorst '43 • VIII Tirpitz • VIII Bismarck • VIII Zieten • VIII Odin • VIII Brandenburg • VIII Anhalt • VIII Brandenburg B • VIII Tirpitz B • VIII BA Tirpitz • IX Friedrich der Grosse • IX Prinz Rupprecht • IX Pommern • IX Pommern B • IX Prinz Sigismund • X Grosser Kurfürst • X Schlieffen • X Preussen • X Mecklenburg • X [[Ship:[Grosser Kurfürst]\|[Grosser Kurfürst]]] • ★ Hannover
U.S.S.R.	III Knyaz Suvorov • IV Imperator Nikolai I • IV Gangut • V Pyotr Velikiy • V Oktyabrskaya Revolutsiya • VI Izmail • VI Novorossiysk • VII Sinop • VII Poltava • VIII Vladivostok • VIII Lenin • VIII Borodino • VIII V. I. Lenin • IX Sovetsky Soyuz • IX Navarin • IX AL Sov. Rossiya • X Kremlin • X Slava • ★ Admiral Ushakov
Italy	IV Dante Alighieri • V Conte di Cavour • V Giulio Cesare • VI Andrea Doria • VII Francesco Caracciolo • VIII Vittorio Veneto • VIII Roma • VIII AL Littorio • IX Lepanto • IX Marco Polo • IX Giuseppe Verdi • X Cristoforo Colombo • X Ruggiero di Lauria • X Sicilia • X Amerigo Vespucci
Pan-America	V Rio de Janeiro • VIII Ipiranga • VIII Atlântico • IX Los Andes • X Libertad • X Comodoro
Japan	II Mikasa • III Kawachi • IV Myōgi • IV Ishizuchi • V Kongō • V ARP Kongō • V ARP Kirishima • V ARP Haruna • V ARP Hiei • V HSF Hiei • VI Fusō • VI Mutsu • VI Ise • VI Ise 2 • VI Ise 3 • VII Nagato • VII Ashitaka • VII Hyūga • VIII Amagi • VIII Yumihari • VIII Kii • VIII Ignis Purgatio • VIII Ragnarok • IX Izumo • IX Adatara • IX Musashi • IX Hizen • IX Iwami • IX Daisen • IX Tsurugi • IX Iwami B • X Yamato • X Bungo • X Shikishima • X ARP Yamato • X [[Ship:[Yamato]\|[Yamato]]] • ★ Satsuma
U.K.	III Bellerophon • III Indefatigable • III Dreadnought • IV Orion • IV Queen Mary • V Iron Duke • V Tiger • V Agincourt • VI Warspite • VI Queen Elizabeth • VI Renown • VI Repulse • VI Repulse B • VII King George V • VII Rooke • VII Hood • VII Nelson • VII Duke of York • VII Collingwood • VII Renown '44 • VII Rodney • VIII Monarch • VIII Hawke • VIII Vanguard • IX Lion • IX Duncan • IX Marlborough • IX Scarlet Thunder • X Conqueror • X St. Vincent • X Thunderer • X Incomparable • X Cumberland • X [[Ship:[Conqueror]\|[Conqueror]]] • ★ Devastation
France	III Turenne • IV Courbet • V Bretagne • VI Normandie • VI Dunkerque • VI Dunkerque B • VII Lyon • VII Strasbourg • VIII Richelieu • VIII Gascogne • VIII Champagne • VIII Flandre • VIII Picardie • VIII [[Ship:[Richelieu]\|[Richelieu]]] • IX Alsace • IX Jean Bart • IX Jean Bart B • X République • X Bourgogne • ★ Patrie
Pan-Asia	IX Bajie • IX Wujing • IX Sun Yat-Sen • IX Louchuan • IX Xuan Wu
Spain	IX Victoria
Commonwealth	VII Yukon

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Compatible Upgrades