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Supertest: U.S. Tier IX Premium Hybrid Battleship Kearsarge

5 min read

We all knew that Ise and Tone were just the beginning but I don’t think anyone thought that the next hybrid ship would arrive so fast and that it would be… this… absolute monstrosity. Seriously the Kearsarge is making the Izumo look beautiful!

Historical background

In 1937, to fulfill Stalin’s plan of a strong ocean-going fleet, the Soviet Union came to the negotiation with the USA to get support from them and overcome the limitations of the Soviet shipbuilding capabilities. The Soviets ordered turbines as well as a license to produce said turbines back home, they were also ready to buy U.S built cruisers, etc. At some point, they also asked if the U.S.A could build battleships for them. While initially, the negotiation failed. The U.S. government reconsidered the idea when the Soviet ambassador brought on the table the argument that such battleship would be used to keep the Japanese Navy in check in the Pacific and, hearing this, the U.S. Chief of Naval Operations agreed with the idea being supported by President Roosevelt.

This is where things are getting crazy. Enter the firm Gibbs & Cox of New York. Apparently, they didn’t quite understand that the Soviets only wanted battleships and also forgot any sort of treaty limitations. In early 1938, they delivered three different designs of a battleship-aircraft carrier hybrid with the largest displacing almost 72 000 tons:

  • Project 1058 / Design A with 66,074t standard displacement, eight 456mm guns and 40 planes
  • Project 1058.1 / Design B with 71,859t standard displacement, 12 406mm guns and 40 planes
  • Project 1058.2 / C with 44,200t standard displacement, ten 406mm guns, and 28 planes

To nobody’s surprise, all three proposals were refused as they were in complete violation of naval treaties and there was simply no infrastructure available to build such monsters.

Later on, Gibbs and Cox would propose a… much more logical design of a normal battleship with 45 000 displacement, armed with ten 406 mm guns and with a maximum speed of 31 knots. In the end, with the situation in Europe spinning out of control, all cooperation ceased in October 1939.

In World of Warships… it looks like Wargaming pulled a bit of a kitbashing. Considering the tonnage, it would appear that they are using the hull of Design A but the armament definitely belongs to Design B. Also, they obviously modernized her anti-air to fit at tier IX. She can deploy a squadron of three attack aircraft armed with Tiny Tim rockets.

In any case, this ship, even though it’s a tier IX is absolutely gigantic as you can see here.

Ship’s commemorative flag

Ship’s preview


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
Attack Aircraft




Propulsion: 300 000 hp


‎Mk9 mod. 1


406 mm/45 Mk.6 in a turret

F8F Bearcat

General Characteristics

Health84 300 HP
Torpedo Damage Reduction24 %
Displacement70 630 tons
Overall length305.97 m
Beam38.2 m
Overall height (keel to the highest point on the ship)36.0 m
Freeboard6.9 m
Main Armament
Maximum Firing Range19.570 km
406 mm/45 Mk.6 in a turret4 x 3 406 mm
Attack Aircraft Squadron
Size of the Squadron3  F8F Bearcat
Rockets in payload per plane3 HE Tiny Tim
Secondary Armament
Maximum Firing Range6.950 km
127 mm/38 Mk.12 on a Mk.29 mount
14 x 2 127 mm
Maximum speed30.0 knots
Turning Circle Radius1 050 m
Rudder Shift Time18.4 s
Surface Detectability16.92 km
Air Detectability14.02 km
Detectability After Firing Main Guns in Smoke16.39 km

Main Battery

4 x 3 406 mm/45 Mk.6 in a turret
 Maximum Firing Range19.570 km
 Reloading Time36.0 s
180 Degree Turn Time30.0 s
Optimal firing angles at the front35°
Optimal firing angles at the rear31°
Sigma1.9 sigma
Maximum Dispersion256 m
Type of Projectile HE – 406 mm HE/HC Mk13
Alpha Damage5 700 HP
Damage4 620 HP
Penetration capacity 68 mm
Explosion size2.46
Fire chance36 %
Projectile Speed820 m/s
Air Drag0.346
Projectile Mass862 kg
Type of ProjectileAP – 406 mm AP Mk8
Alpha Damage13 100 HP
Projectile Speed701 m/s
Air Drag0.352
Projectile Mass1 225 kg
Projectile Krupp2 598
Projectile Detonator0.033 s
Detonator threshold68 mm
Ricochet Angles45° – 60°

Attack Aircraft Squadron

Attack aircraft – F8F Bearcat
Hit points per plane1 660
Cruise speed176 knots
Maximum speed216 knots
Engine boost time5 s
Engine boost reload time10 s
Size of attacking flight3
Aircraft per squadron3
Rocket typeHE Tiny Tim
Rockets per plane3
Launch delay5 s
Maximum rocket damage5 400
Projectile mass36.29 kg
Penetration capacity68 mm
Detectability range10.0 km
Aircraft restoration time120 s

Secondary battery

14 x 2 127 mm/38 Mk.12 on a Mk.29 mount
Maximum Firing Range6.950 km
Reloading Time6.0 s
Sigma1.00 sigma
Type of ProjectileHE – 127 mm HE Mk32
Alpha Damage1 800 HP
Damage380 HP
HE penetration21 mm
Explosion Size0.38
Chance to Cause Fire5 %
Projectile Speed792 m/s
Air Drag0.347
Projectile Mass24.5 kg

Anti-air Armament

14 x 2 127 mm/38 Mk.12 on a Mk.29 mount
Sector range0.1 km – 5.8 km
Hit chance75 %
Sector’s damage70
Sector’s damage frequency0.29 s
Sector’s damage per second245
Flak clouds number10
Flak cloud damage1 610
10 x 4 40 mm Bofors on a Mk.2 mount
Sector range0.1 km – 3.5 km
Hit chance75 %
Sector’s damage75
Sector’s damage frequency0.29 s
Sector’s damage per second263
20 x 1 20 mm Oerlikon on a Mk.4 mount
Sector range0.1 km – 2.0 km
Hit chance70 %
Sector’s damage41
Sector’s damage frequency0.29 s
Sector’s damage per second144


Slot 1
Slot 2
Damage Control Party
consumable_PCY009_CrashCrewPremiumWork time: 20 s
Cooldown: 80 s
Repair Party
Number of charges: 4
Work time: 28 s
Cooldown: 80 s
HP regeneration: 0.5%/s
Casemate damage regeneration: 50%
Citadel damage regeneration: 10%

The Armor

External armor protection:

Front and rear armor protection of the middle section:

Hidden armor deck:

Citadel armor protection:

Turrets armor protection:

Hidden armor protection inside the stern:

Personal Opinion

Well right now… this ship definitely looks scary. It’s not like the Ise or Tone that are losing firepower for the planes they carry. Here, you have, just like the Minnesota, twelve 406 mm guns (with the same gun performances as North Carolina) but with 4 seconds shorter reload.

The survivability might definitely be an issue though with that gigantic 19 mm side armor around the flight deck. This will, without a doubt, lead to a ton of additional damage received.

The plane squadron itself will have fairly limited use in high tier with only three planes but against tier VII ships, their impact shouldn’t come unnoticed.

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15,466 thoughts on “Supertest: U.S. Tier IX Premium Hybrid Battleship Kearsarge

  1. Ise in a way loses firepower, with two turrets removed, doesn’t she?

  2. hello, you have wrong values on repair party: restoration of cita dmg is not 50%, its 10%. Even conqueror has 10%

  3. Indeed, sorry on that one, looked at the wrong value.
    Fixed it.

  4. Because Ise was converted, where-as this was… purposefully designed for the role?

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