Iwaki Alpha

13.9

Cruiser | Japan | Tier IV

Tech Tree Position

Battle Levels

12345678910

IV

Special

Iwaki Alpha — Japanese special premium Tier IV cruiser.

An advanced design of the Tenryu-class cruiser. The ship's displacement exceeded that of her predecessor, which allowed for a reinforced artillery armament and more powerful propulsion. At the project design stage, the cruiser was faster than all existing cruisers and many destroyers.

Iwaki Alpha was awarded to testers in March 2015 who had played 100 matches during the Closed Alpha period. The ship has not been made available since.

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 ()
140 mm/50 3rd Year Type on a single mount	10	21.2	106	2,400	10	2,700		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 ()
Iwaki	18,600	3	63	5		5	2			0	0

	Rate of Fire (shots/min)	Torpedo Tubes Reload Time (sec)	180° Turn Time (sec)	Maximum Damage (HP)	Torpedo Speed (knot)	Torpedo Range (km)		Research price (exp)	Purchase price ()
Type8 mod. 2	0.8	76	7.2	16,266	59	10		0	0

	IDS_SHIP_PARAM_SUO_INCREASE_DIST (%)	Maximum Firing Range (km)		Research price (exp)	Purchase price ()
Type5 mod. 1		0		0	0

	Maximum Speed (knot)		Research price (exp)	Purchase price ()
Propulsion: 68,250 hp	35		0	0

Compatible Upgrades

Slot 1
Slot 2
Slot 3
Slot 4

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.

Iwaki Alpha is best treated as a destroyer (DD) that is the size of a cruiser. She has a smoke generator like a DD, and two triple racks of 610mm torpedoes with massive hitting power. With its light armor and good maneuverability this ship can wolf pack it with the best of them. When played like a torpedo destroyer this ship can work wonders.

The biggest drawback is Iwaki Alpha's cruiser sized hull with a deck-to-keel citadel. Stay undetected as much as you can.

Pros:

Fast and maneuverable.
The guns can be made very accurate indeed.
Hard hitting, stealthy, long-range torpedoes (10 km) that give her the ability to launch from outside detection range.
Two triple center-line racks for a full six torpedo salvo.
Equipped with the smoke generator and hydroacoustic search consumables.
Has access to four upgrade module slots (compared to the usual two).

Cons:

Thin armor.
Prone to citadel hits and incapacitation of modules.
Generally lousy guns (DPM, range, ballistics).
Poor forward torpedo firing arcs.
Lacks secondary artillery armament.
Weak anti-aircraft guns (3.1 km) with no long-range capability.

Research

As a premium ship, Iwaki Alpha doesn't have any modules to research.

Optimal Configuration

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.

Upgrades

Iwaki Alpha can equip the legendary Aiming Systems Modification 0 — one of only three ships that can do so^[1] — for large buffs to all main armament. Similar to Arkansas Beta, Iwaki Alpha has access to upgrade slots 3 and 4 that other ships of her tier do not.

The recommended upgrades for Iwaki Alpha are as follows:

Slot 1: Aiming Systems Modification 0 Don't even think about anything else.
Slot 2: Engine Room Protection , though the special Hydroacoustic Search Modification 1 is tempting; smoke screens are torpedo magnets.
Slot 3: Aiming Systems Modification 1 though the main turret traverse buff or torpedoes buff bear considering.
Slot 4: Propulsion Modification 1 to make accelerating out of smoke and changing speeds easier.

Combining Aiming Systems Mods 0 and 1 makes Iwaki Alpha the most accurate (smallest dispersion ellipse) ship in the game.

Commander Skills

Recommended Commander Skills
Cost (points)	Attack				Defense
1	Grease the Gears +15% main battery traverse speed. ★	Swift Fish +5% torpedo speed. ★	Consumables Specialist −7.5% cooldown time of all Consumables except: Damage Control Party  Repair Party .	Gun Feeder -40% time to switch shell type.	Incoming Fire Alert Receive a warning of a salvo fired at your ship from more than 4.5km.	Last Stand The ship remains able to move and maneuver - slowly - while the engine or steering gears are incapacitated. ★★
2	Demolition Expert +1% chance of main and secondary HE shells causing a fire. +15% to the fragmentation damage area of HE ordnance fired at submarines. ★	Fill the Tubes -10% torpedo tubes reload time. ★★	Consumables Enhancements +10% action time of Hydroacoustic Search, Surveillance Radar, Smoke Generator, & Engine Boost. ★★	Eye in the Sky Spotting Aircraft: • +2 charges • -50% cooldown time.	Priority Target The detection indicator will show the number of enemies targeting you with main battery. ★	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..
3	Heavy HE and SAP Shells +10% HE and SAP shell damage. +15% ship detectability guns 149mm and up.	Pack a Punch +15% torpedo damage. +20% secondary battery range..	Adrenaline Rush -0.2% reload time of all armaments per 1% HP lost +0.2% AA continuous damage per 1% HP lost. ★★★	Heavy AP Shells +5% damage for AP shells 190mm and larger.	Superintendent +1 charge to all consumables. ★★	Survivability Expert +450 HP per ship tier. ★
4	Top Grade Gunner -10% reload time of secondary batteries If enemy ship is spotted within detectability range, -8% reload time of main battery.	Outnumbered If there are fewer allies than visible enemies within the ship's base main caliber firing range: +8% ship speed -10% main battery dispersion. ★	Radio Location Shows the direction to the nearest enemy ship. The enemy is alerted that a bearing has been taken.. ★	Inertial Fuse for HE Shells +25% armor penetration of HE shells Base fire chance reduced by half.	Concealment Expert -10% detectability range of the ship. ★★★	AAA & ASW Expert +25% continuous AA and flak damage. +15% damage inflicted by depth charges. While AAA is active: −50% ship consumables reload time..
Key: ★★★ - Extremely Useful ★★ - Frequently Useful ★ - Occasionally Useful No stars - Not Useful

Consumables

Iwaki Alpha equips the following consumables:

Slot 1: Damage Control Party 
Slot 2: Smoke Generator  - 3 charges
Slot 3: Hydroacoustic Search  - 3 charges

Camouflage

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

Signals

Iwaki Alpha is reasonably fast, so Sierra Mike () may be useful to the player. Victor Lima () and India X-Ray () may be used to increase the fire chance of main battery high explosive ammunition by 1%. Juliet Whiskey Unaone () will increase torpedo efficiency by increasing the chance to cause flooding.

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

References

↑ The others are IV Yubari and III Katori.

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

Cruisers

Netherlands	I Van Kinsbergen • II Gelderland • III Java • IV De Ruyter • V Celebes • VI Kijkduin • VII Eendracht • VIII Haarlem • VIII De Zeven Provinciën • VIII Admiraal • VIII Statenland • IX Johan de Witt • IX Van Speijk • X Gouden Leeuw • X Prins van Oranje • X Vrijheid
U.S.A.	I Erie • II Chester • II Albany • III St. Louis • III Charleston • IV Phoenix • V Omaha • V Marblehead • V Marblehead Lima • V Rattlehead • VI [[Ship:Cleveland (< 31.05.2018)\|Cleveland (< 31.05.2018)]] • VI Pensacola • VI Dallas • VII Atlanta • VII [[Ship:Pensacola (< 31.05.2018)\|Pensacola (< 31.05.2018)]] • VII New Orleans • VII Helena • VII Indianapolis • VII Atlanta B • VII Boise • VII Flint • VIII [[Ship:New Orleans (< 31.05.2018)\|New Orleans (< 31.05.2018)]] • VIII Baltimore • VIII Cleveland • VIII Wichita • VIII Anchorage • VIII Congress • VIII Rochester • VIII San Diego • VIII AL Montpelier • IX [[Ship:Baltimore (< 31.05.2018)\|Baltimore (< 31.05.2018)]] • IX Buffalo • IX Seattle • IX Vallejo • IX Alaska • IX Tulsa • IX Alaska B • X Des Moines • X Worcester • X Puerto Rico • X Salem • X Austin • ★ Jacksonville • ★ Annapolis
Europe	I Gryf • VI Elli • X Svea
Germany	I Hermelin • II Dresden • II Emden • III Kolberg • IV Karlsruhe • V Königsberg • VI Nürnberg • VI Admiral Graf Spee • VI Leipzig • VI HSF Admiral Graf Spee • VII Yorck • VII München • VII Weimar • VIII Admiral Hipper • VIII Prinz Eugen • VIII Mainz • VIII Schill • VIII Mainz B • VIII Cross of Dorn • VIII Wiesbaden • IX Roon • IX Siegfried • IX Ägir • IX Admiral Schröder • IX Roon CLR • IX AL Ägir • X Hindenburg • X Hildebrand • X [[Ship:[Hindenburg]\|[Hindenburg]]] • ★ Clausewitz
U.S.S.R.	I Orlan • II Diana • II Diana Lima • II Novik • III Aurora • III Bogatyr • III Oleg • III Varyag • III AL Avrora • IV Svietlana • V Murmansk • V [[Ship:Kirov (< 10.06.2020)\|Kirov (< 10.06.2020)]] • V Kotovsky • V Krasny Krym • V Mikoyan • V Kirov • VI Budyonny • VI Molotov • VI Admiral Makarov • VII Shchors • VII Lazo • VII Lazo B • VIII Chapayev • VIII Tallinn • VIII Mikhail Kutuzov • VIII Ochakov • VIII Pyotr Bagration • VIII Bagration • VIII Dmitry Pozharsky • IX Dmitri Donskoi • IX Riga • IX Kronshtadt • IX Kozma Minin • X Moskva • X Alexander Nevsky • X Petropavlovsk • X Stalingrad • X Smolensk B • X Smolensk • X Sevastopol • X Komissar • X [[Ship:[Moskva]\|[Moskva]]] • X Vladimir Monomakh • X Petrozavodsk • ★ Novosibirsk
Italy	I Eritrea • II Nino Bixio • III Taranto • IV Alberto di Giussano • V Raimondo Montecuccoli • V Genova • VI Trento • VI Duca d'Aosta • VII Zara • VII Duca degli Abruzzi • VII Francesco Ferruccio • VII Gorizia • VIII Amalfi • IX Brindisi • IX Michelangelo • X Venezia • X Napoli • X Napoli B • X Ravenna • ★ Piemonte
Pan-America	I Hércules • II Almirante Barroso • II Almirante Abreu • III Vicente Guerrero • IV Córdoba • V La Argentina • VI Almirante Cochrane • VII Coronel Bolognesi • VII Nueve de Julio • VIII Ignacio Allende • VIII Almirante Grau • IX Santander • X San Martín
Japan	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]]]
U.K.	I Black Swan • II Weymouth • III Caledon • IV Danae • V Emerald • V Hawkins • V Exeter • VI Leander • VI Devonshire • VI London • VI Dido • VI Orion '44 • VII Fiji • VII Surrey • VII Belfast • VIII Edinburgh • VIII Albemarle • VIII Cheshire • VIII Tiger '59 • VIII Belfast '43 • VIII Hampshire • VIII Nottingham • VIII AL Cheshire • VIII STAR Edinburgh • IX Neptune • IX Drake • X Monmouth • X Minotaur • X Goliath • X Plymouth • X Gibraltar • X Defence • ★ Edgar
France	I Bougainville • II Jurien de la Gravière • III Friant • IV Duguay-Trouin • V Émile Bertin • VI La Galissonnière • VI De Grasse • VI Dupleix • VI Montcalm • VI [[Ship:[La Galissonnière]\|[La Galissonnière]]] • VII Algérie • VII Toulon • VIII Charles Martel • VIII Cherbourg • VIII Bayard • IX Saint-Louis • IX Brest • IX Carnot • X Henri IV • X Marseille • X Colbert • X Brennus • ★ Condé
Pan-Asia	I Chengan • III Ning Hai • V Chungking • VI Rahmat • VI Huanghe • VII Chumphon • VIII Harbin • VIII Irian • VIII Wukong • IX Sejong • IX Dalian • IX Mengchong • IX Tianjin • X Jinan • X Incheon
Spain	I Júpiter • II Méndez Núñez • III Navarra • IV Almirante Cervera • V Galicia • VI Baleares • VI Canarias • VII Asturias • VIII Cataluña • VIII Numancia • IX Andalucía • IX Almirante Oquendo • X Castilla
Commonwealth	I Sutlej • II Port Jackson • III Caradoc • IV Dunedin • V Delhi • VI Hobart • VI Perth • VI Mysore • VII Uganda • VIII Auckland • IX Encounter • IX Hector • X Cerberus • X Brisbane

[1] The others are IV Yubari and III Katori.

[1]

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Iwaki Alpha

Modules

Compatible Upgrades