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Supertest: Pan-Asian Tier VIII Premium Destroyer Fen Yang

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The Yoizuki (“Moon Visible as Day Joins Evening”) was the 11th ship of the Akizuki-class of destroyers from the Imperial Japanese Navy. She was only completed in January 1945 and as such, never saw any action.

The Akizuki-class were designed as anti-aircraft escorts, mostly to protect carrier battle groups. They were armed with what was at the time the best anti-air armament that the Japanese had available, the 100 mm/65 Type 98 (but at the same time were still carrying the infamous 25 mm AA gun). In total, 36 ships were planned but only 12 were completed before the end of the war. Out of the 12 completed ships, 6 would be lost in action. The rest was either scrapped or surrendered to other nations.

After being disarmed, Yoizuki was given to the Republic of China in August 1947 and would be used as a training ship from 1949 until she was scrapped in 1963. There were plans to rearm the Fen Yang with 100 mm guns and long-lance torpedoes salvaged from other ships as well as with 25 mm and 40 mm AA guns but the Korean war put an end to the project.

In World of Warships, we are somewhat getting what Fen Yang might have looked like after she was rearmed even though she is using the twin Japanese 40 mm. Interestingly, her model isn’t a copy-paste from the one of the Akizuki and is instead a proper standalone. Compared to Akizuki, she has a much better anti-air with Defensive AA Fire, deepwater torpedoes and pan-Asian Smoke Generator. However, she loses a lot in terms of firepower due to the fact that her HE shells follow the standard 1/6 HE penetration rule and she has a slower main battery reload.

For the classic reminder, this is a ship in testing, anything can change so don’t look at her like she would already be released.


Gun Fire Control System
Main battery


Fen Yang


Propulsion: 52 000 hp


Mk 8 mod. 1


100 mm/65 Type98


Type90 mod. 1
GeneralMain BatteryTorpedo TubesAir DefenseConsumables
Health19 700 HP
Displacement3 700 tons
Main Armament
Maximum Firing Range12.460 km
100 mm/65 Type984 x 2 100 mm
Torpedo Armament
Maximum Firing Range12.000 km
610 mm Quad1 x 4 610 mm
Maximum speed33 knots
Turning Circle Radius730 m
Rudder Shift Time4.5 s
Surface Detectability7.76 km
Air Detectability3.55 km
Detectability After Firing Main Guns in Smoke2.48 km

4 x 2 100 mm/65 Type98
 Maximum Firing Range12.460 km
 Reloading Time4.0 s
180 Degree Turn Time11.2 s
Optimal firing angles at the front30°
Optimal firing angles at the rear30°
Sigma2.00 sigma
Maximum Dispersion108 m
Type of Projectile HE – 100 mm HE Type98
Alpha Damage1 500 HP
Damage350 HP
Penetration capacity 17 mm
Explosion size0.28
Fire chance8 %
Projectile Speed1 000 m/s
Air Drag0.314
Projectile Mass13 kg
Type of ProjectileAP – 100 mm AP Type98
Alpha Damage1 700 HP
Projectile Speed1 000 m/s
Air Drag0.314
Projectile Mass13 kg
Projectile Krupp2 154
Projectile Detonator0.01 s
Detonator threshold17 mm
Ricochet Angles45° – 60°

1 x 4 610 mm Quad
Type90 mod. 1
Deepwater torpedoes – Can only hit Battleships and Aircraft Carrier
Reloading Time122 s
Maximum Distance12.000 km
Optimal firing angles at the front54°
Optimal firing angles at the rear62°
Damage20 967
Flooding Chance355 %
Speed67 kt
Surface Detectability0.8 km

4 x 2 100 mm/65 Type98
Sector range0.1 km – 5.8 km
Hit chance100 %
Sector’s damage32
Sector’s damage frequency0.29 s
Sector’s damage per second112
Flak clouds number5
Flak cloud damage1 400
5 x 2 40 mm/60 Type5
2 x 1 40 mm Bofors Mk. 3
Sector range0.1 km – 3.5 km
Hit chance100 %
Sector’s damage38
Sector’s damage frequency0.29 s
Sector’s damage per second133

Slot 1
Slot 2
Slot 3
Slot 4
Damage Control Party
consumable_PCY009_CrashCrewPremiumWork time: 5 s
Cooldown: 40 s
Smoke Generator
Number of charges: 5
Work time: 30 s
Cooldown: 100 s
Smoke radius: 450 m
Smoke duration: 70 s
Engine Boost
Number of charges: 3
Work time: 120 s
Cooldown: 120 s
Bonus: +8% speed
Torpedo Reload Booster
Number of charges: 3
Work time: 1 s
Cooldown: 160 s
Torpedo reload time: 5 s
Defensive AA Fire
Number of charges: 3
Work time: 40 s
Cooldown: 80 s
Continuous Damage: +50%
Damage from shell explosions: +300%

The Armor

Without any surprise, the Fen Yang presents the same armor profile as the Akizuki. The hull is protected by 19 mm of armor and the superstructure and turrets by 13 mm of armor.

Personal Opinion

Initially, this ship was revealed as a straight-up better Akizuki. Now… well she doesn’t look so promising anymore.

First of all, she loses the special HE penetration of the Japanese 100 mm guns. This means that she is basically forced to take IFHE, otherwise, you would almost not be able to penetrate anything at her tier with HE as even destroyers’ hulls are 19 mm thick. That need to take IFHE annihilates the buff to her fire chance. Her reload also got hammered from 3s to 4s which is not compensated at all by the slight increase in damage of the HE shells.

In the end, she trades the primary thing that made the Akizuki strong for Defensive AA Fire, deepwater torpedoes and better smoke. If you ask me, that isn’t really a good trade.