Supertest: Pan-Asian Tier IX Cruiser Sejong

Historical background

The Sejong is quite possibly based on a mix between two designs. The first one is a 7 500 tons design of light cruiser from 1939 and armed with twelve 127 mm/54 guns in six twin turrets.

The second one is an AA cruiser preliminary design (S-511-66: “5”/54 Cal. Cruiser – Scheme “C”). This design was calling for an 8 550 tons light cruiser armed with new 127 mm/54 guns in twin turrets equipped with a new auto-loading system and was the basis for the CL-154 class. It was, however, abandoned in March 1945.

The ship is a modified version of this design, being equipped with four quadruple torpedo launchers.

The ship is named after Sejong the Great, the fourth king of the Joseon dynasty of Korea.

Ship’s preview

Camouflage

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.

Modules

Hull	Engine	Gun Fire Control System	Main battery	Torpedoes
Sejong (A)	Propulsion: 90 000 HP	‎‎Mk 9 mod. 1	127 mm/54 Mk.18 in a turret	Mk16 mod. 2
Sejong (B)		‎‎Mk 9 mod. 2

Hull

Engine

Gun Fire Control System

Main battery

Torpedoes

Sejong (A)

Propulsion: 90 000 HP

‎‎Mk 9 mod. 1

127 mm/54 Mk.18 in a turret

Mk16 mod. 2

Sejong (B)

‎‎Mk 9 mod. 2

Stock Ship

General Characteristics

Tier	IX
Health	28 800 HP
Torpedo Damage Reduction	4 %
Displacement	8 530 tons
Dimensions
Overall length	180.63 m
Beam	17.6 m
Overall height (keel to the highest point on the ship)	24.0 m
Freeboard	3.1 m
Main Armament
Maximum Firing Range	12.046 km
127 mm/54 Mk.18 in a turret	6 x 2 127 mm
Torpedo Armament
Maximum Firing Range	12.000 km
533 mm Mk31	4 x 4 533 mm
Maximum speed	33.0 knots
Turning Circle Radius	670 m
Rudder Shift Time	10.8 s
Surface Detectability	12.34 km
Air Detectability	7.41 km
Detectability After Firing Main Guns in Smoke	5.53 km

Main Armament

6 x 2 127 mm/54 Mk.18 in a turret
Maximum Firing Range	12.046 km
Reloading Time	5.25 s
180 Degree Turn Time	4.5 s
Optimal firing angles at the front	35°
Optimal firing angles at the rear	35°
Sigma	2.05 sigma
Maximum Dispersion	116 m
Shells
Type of Projectile	HE – 127 mm HE Mk.41
Alpha Damage	1 800
Penetration capacity	21 mm
Explosion size	0.44
Fire chance	9 %
Projectile Speed	808 m/s
Air Drag	0.21
Projectile Mass	31.75 kg
Type of Projectile	AP – 127 mm AP/SC Mk38 Mod 2
Alpha Damage	2 100
Projectile Speed	808 m/s
Air Drag	0.347
Projectile Mass	31.75 kg
Projectile Krupp	1 720
Projectile Detonator	0.01 s
Detonator threshold	21 mm
Ricochet Angles	45° – 60°

Torpedo Armament

4 x 4 533 mm Mk31 Mk16 mod. 2 Deepwater: Can only hit cruisers, battleships and aircraft carriers
Reloading Time	145 s
Maximum Distance	12.000 km
Optimal firing angles at the front	40°
Optimal firing angles at the rear	30°
Damage	17 900
Flooding Chance	368%
Speed	67 knots
Surface Detectability	0.8 km

Anti-air Armament

6 x 2 127 mm/54 Mk.18 in a turret
Sector range	0.1 km – 6.0 km
Hit chance	90 %
Sector’s damage	50
Sector’s damage frequency	0.29 s
Sector’s damage per second	175
Flak clouds number	10
Flak cloud damage	1 750
8 x 4 40 mm Bofors on a Mk.2 mount
Sector range	0.1 km – 3.5 km
Hit chance	90 %
Sector’s damage	60
Sector’s damage frequency	0.29 s
Sector’s damage per second	210
6 x 2 20 mm Oerlikon Mk20 14 x 1 20 mm Oerlikon Mk4
Sector range	0.1 km – 2.0 km
Hit chance	85 %
Sector’s damage	45
Sector’s damage frequency	0.29 s
Sector’s damage per second	172

Consumable

Slot 1	Slot 2	Slot 3	Slot 4	Slot 5
Damage Control Party Work time: 5 s Cooldown: 60 s	Defensive AA Fire Number of charges: 3 Work time: 40 s Cooldown: 80 s Damage from continuous DPS: +50% Damage from flak explosions: +300%	Torpedo Reload Booster Number of charges: 2 Work time: 1 s Cooldown: 300 s Torpedo reload time: 8 s	Repair Party Number of charges: 3 Work time: 28 s Cooldown: 80 s HP regeneration: 0.5%/s Casemate damage regeneration: 50% Citadel damage regeneration: 50%	Smoke Generator Number of charges: 3 Work time: 30 s Cooldown: 100 s Smoke radius: 450 m Smoke duration: 70 s