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20.3cm Twin Gun Mount

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No.6 20.3cm連装砲
RedGunMedium.png Medium Caliber Main Gun
Effects: Firepower+8 AA+3 RangeMedium
Scrap value: Ammo 3 Steel 4 (Buildable)

Equipment Card 20.3cm Twin Gun Mount.png

Equipment Character 20.3cm Twin Gun Mount.png

Equipment Item 20.3cm Twin Gun Mount.png

Equipment Full 20.3cm Twin Gun Mount.png

Refittable Ship Types
Fast Battleship Battleship
Aviation Battleship Standard Aircraft Carrier
Armored Carrier Light Carrier
Heavy Cruiser Aviation Cruiser
Light Cruiser Torpedo Cruiser
Training Cruiser Destroyer
Coastal Defense Ship Submarine
Aircraft Carrying Submarine Seaplane Tender
Fleet Oiler Submarine Tender
Repair Ship Amphibious Assault Ship

Introduction

重巡に搭載された主砲、それが20.3cm連装砲です。
条約上限一杯の8インチ（20.3cm）のこの砲は、中距離での砲撃戦はもちろん、夜戦のような近距離での殴り合いでも十分にその威力を発揮します。
限定的ですが、対空射撃も可能です。

The 20.3 cm twin-gun was the main armament of heavy cruisers.
With a caliber at the maximum allowed by the Treaty of 8 inches (20.3 cm), it has sufficient power for medium-range combat and close-range night battle brawls.
It also has limited anti-air capabilities.

Mechanics

Main GunsSmall Caliber Main GunMedium Caliber Main GunLarge Caliber Main Gun are the main armament used by surface ships. Their main stats are the "firepower" Firepower and "accuracy" Accuracy. They are notably required to trigger all Artillery Spotting attacks as well as some Night Cut-Ins, notably the "Double Attack" (DA).

Notes

How To Obtain

Buildable:

Best craft recipe Fuel10 Ammunition41 Steel40 Bauxite10 HeavyDoes NOT include CAV/BBV
Ships with special crafting will have
reduced rates of other specific equipmentSecretary: Category Heavy
Ship Types included:
CA, FBB, BB or AR

Stock equipment of: Aoba KaiAoba Kai, AobaAoba, Ashigara KaiAshigara Kai, AshigaraAshigara, Atago KaiAtago Kai, AtagoAtago, Chikuma KaiChikuma Kai, ChikumaChikuma, Choukai KaiChoukai Kai, ChoukaiChoukai, Furutaka KaiFurutaka Kai, FurutakaFurutaka, Haguro KaiHaguro Kai, HaguroHaguro, Kako KaiKako Kai, KakoKako, Kinugasa KaiKinugasa Kai, KinugasaKinugasa, Kumano KaiKumano Kai, KumanoKumano, MayaMaya, MikumaMikuma, Mogami KaiMogami Kai, Myoukou KaiMyoukou Kai, MyoukouMyoukou, Nachi KaiNachi Kai, NachiNachi, Suzuya KaiSuzuya Kai, SuzuyaSuzuya, Takao KaiTakao Kai, TakaoTakao, Tone KaiTone Kai, ToneTone

Uses

Used to improve: 20.3cm Twin Gun Mount20.3cm Twin Gun Mount, 203mm/53 Twin Gun Mount203mm/53 Twin Gun Mount, 8inch Triple Gun Mount Mk.98inch Triple Gun Mount Mk.9, 8inch Triple Gun Mount Mk.9 mod.28inch Triple Gun Mount Mk.9 mod.2, 20.3cm (No.3) Twin Gun Mount20.3cm (No.3) Twin Gun Mount, Prototype 20.3cm (No.4) Twin Gun MountPrototype 20.3cm (No.4) Twin Gun Mount, SKC34 20.3cm Twin Gun MountSKC34 20.3cm Twin Gun Mount, 6inch Triple Rapid Fire Gun Mount Mk.166inch Triple Rapid Fire Gun Mount Mk.16, 6inch Triple Rapid Fire Gun Mount Mk.16 mod.26inch Triple Rapid Fire Gun Mount Mk.16 mod.2, 305mm/46 Twin Gun Mount305mm/46 Twin Gun Mount, 305mm/46 Triple Gun Mount305mm/46 Triple Gun Mount

Used by quest: F96, F97

Updates History

Improvement

RedGunMedium.png 20.3cm Twin Gun Mount

Improvement → Conversion
★ Improvement
Level 		0~5 6~9
Equipment Card 20.3cm (No.2) Twin Gun Mount.png
20.3cm (No.2) Twin Gun Mount
Development material Consumed 1/2 2/3 2/5
Improvement material Consumed 2/3 2/3 4/10
Equipment
Consumed 		- Equipment Card 20.3cm Twin Gun Mount.png Equipment Card 20.3cm Twin Gun Mount.pngx2
Items
Consumed 		- -
Resources Fuel10 Ammunition90 Steel120 Bauxite0
Ship Helper Conversion
Ship Banner Aoba.png
Aoba/Kai
Equipment Card 20.3cm (No.2) Twin Gun Mount.png
20.3cm (No.2) Twin Gun Mount
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Kinugasa.png
Kinugasa/Kai/Ni
Mon Tue Wed Thu Fri Sat Sun
Improvement Improved effects
Medium Caliber Main Gun 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Firepower 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Night Battle Power 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Accuracy Day 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Accuracy Night 1.30 1.84 2.25 2.60 2.91 3.18 3.44 3.68 3.90 4.11

Trivia

Equipped as standard main guns for all Japanese heavy cruisers. Initially, it was developed as the 20.0 cm single mount (as seen on early Furutaka-class cruisers) but was later modified to fit 8.0 inch (20.3 cm).

See Also

v · e
Equipment List
Gallery • By Stats • Equipment Types & Icons • Development • Improvement
 
Main Guns
Foreign
10cm Twin HA Gun Mount (+ AAFD • Kai + AAFD Kai) • 12cm Single HA Gun Mount (Model E • Model E Kai) • 12.7cm HA Gun Mount (Single LM • Twin LM • Single Kai 2 • Twin Kai 2) • 12.7cm Twin HA Gun Mount (Model A Kai 3 + AAFD • Model B Kai 4 + AAFD)
Foreign
14 cm
15-15.5 cm/6 inch
20-20.3 cm/8 inch
30.5-32 cm
305mm/46 Gun Mount (Twin • Triple) (Ita) • 320mm/44 Gun Mount (Twin • Triple) (Ita) • 30.5cm Triple Gun Mount (Kai) (Sov)
35.6 cm/14 inch
38-38.1 cm
41 cm/16 inch
41cm Twin Gun Mount (Kai 2) • 41cm Triple Gun Mount (Proto • Kai • Kai 2) • 16inch Twin Gun Mount (Mk.I • Mk.V • Mk.VIII Kai) (US) • 16inch Triple Gun Mount (Mk.6 • Mk.6 + GFCS • Mk.6 mod.2 • Mk.7 • Mk.7 + GFCS) (US) • 16inch Triple Gun Mount (Mk.I • Mk.I + AFCT Kai • Mk.I Kai + FCR Type 284) (UK)
46 cm
 
Secondary Guns
Surface
Foreign
 
Anti-Air
 
Torpedo Weapons
53cm Twin Torpedo Mount • 53cm Bow O2 Torpedoes • 61cm Torpedo Mount (Triple • Triple O2 • Triple O2 LM • Quad • Quad O2 • Quad O2 LM • Quintuple O2 • Proto Sext O2) • 533mm Quint Torpedo Mount (Initial Model • Late Model) (US) • 533mm Triple Torpedo Mount (Model 53-39) (Sov)
Late Model Bow Torpedo Mount (4 tubes) (+ Skilled Sonar Personnel) • Late Model Bow Torpedo Mount (6 tubes) (+ Skilled Sonar Personnel) • Submarine 53cm Bow Torpedo Mount (8 tubes) (Late Model) • Prototype FaT Type 95 Oxygen Torpedo Kai (IJN/Ger) • 21inch 4-tube Bow Torpedo Launcher (Initial Model • Late Model) (US) • 21inch 6-tube Bow Torpedo Launcher (Initial Model • Late Model) (US) • Submarine 4-tube Stern Torpedo Launcher (Initial Model • Late Model) (US)
Kouhyouteki (Type A • Type C • Type D Kai)
 
Carrier-Based Planes
Other (IJN)
Type 96 (Kai) • Shiden (Kai 2 • Kai 4) • Reppuu (Prototype LM • Model 11 • 601 • Kai • Kai 2 • Kai 2 (CD1/Skilled)) • Prototype Jinpuu • Shinden Kai
Foreign
Bf 109 T Kai (IJN/Ger) • Fw190 (T Kai • A-5 Kai (Skilled)) (IJN/Ger) • Reggiane (2001 OR Kai • 2005 Kai) (IJN/Ita) • Wildcat (F4F-3 • F4F-4) (US) • Hellcat (F6F-3 • F6F-5) (US) • XF5U (US) • FR-1 Fireball (US) • Fulmar (UK) • Seafire Mk.III Kai (UK) • Corsair Mk.II (Ace) (UK/US)
Reppuu Kai 2 Model E (CD1/Skilled) • Hellcat (F6F-3N • F6F-5N) (US) • F4U-2 Night Corsair (US)
Foreign
Ju.87C (Kai • Kai 2 KMX • Kai 2 KMX/Skilled) (IJN/Ger) • Re.2001 CB Kai (IJN/Ita) • SBD (Yellow Wings • VB-2 Bomber Squad) (US) • SBD-5 (US) • Helldiver (SB2C-3 • SB2C-5) (US) • Corsair (F4U-1D (US) • F4U-4 (US) • AU-1 (US) • F4U-7 (Fr/US)) • FM-2 (US) • Skua (UK)
Type 97 (Skilled • 931 • 931/Skilled • Tomonaga • Murata) • Tenzan (601 • 931 • Model 12A • Tomonaga • Murata) • Ryuusei (Kai • Kai Skilled • 601 • CD1 • CD1/Skilled)
Foreign
Re.2001 G Kai (IJN/Ita) • TBD (Yellow Wings) (US) • TBF (US) • Swordfish (Mk.II Skilled • Mk.III Skilled) (UK) • Barracuda (Mk.II • Mk.III) (UK) • Mosquito TR Mk.33 (UK)
Type 97 Model E (Skilled) • Tenzan Model 12A Kai (Skilled  • Murata) • TBM-3D (US) • TBM-3W+3S (JMSDF/US)
 
Land-Based Planes
Toukai (Proto • 901)
"Army"
Type 1 Fighter Hayabusa (Model II • Model II (64) • Model IIIA • Model IIIA (54)) (IJA) • Type 3 Fighter Hien (Model 1D • 244) (IJA) • Type 4 Fighter Hayate (IJA) • Type 2 Two-seat Fighter Toryuu (Model C) (IJA) • Ki-96 (IJA) • Fw 190 D-9 (Ger) • Spitfire (Mk.I • Mk.V • Mk.IX Skilled) (UK)
"Navy"
Raiden • Shiden (Model 11 • Kai • Kai 343/301 • Kai 343/407 • Kai 343/701) • Type 0 Fighter (Model 22 (251) • Model 21 (Tainan) • Model 32 (Tainan)) • Reppuu Kai (352/Skilled)
Jets
Canard
HA
Me 163B (Ger) • Shuusui (Proto)
 
Seaplanes
Type 98 Reconnaissance Seaplane (Night Recon) • Type 0 Reconnaissance Seaplane (11B Kai Night Recon • 11A Kai 2)  • Loire 130M (Kai Skilled) (Fr) • Walrus (UK) • Sea Otter (UK)
Zuiun (631 • 634 • 634/Skilled • Model 12 • Model 12 (634) • Kai 2 (634) • Kai 2 (634/Skilled)) • Seiran (Prototype • 631) • Swordfish (Mk.III Kai • Mk.III Kai Skilled) (UK/Swe) • Laté 298B (Fr)
Type 2 Kai (Skilled) • Kyoufuu (Kai • Kai 2) • Ro.44 Seaplane Fighter (bis) (Ita)
 
Radars
 
Anti-Submarine Warfare
Ka Type Observation Autogyro (IJA) • O Type Observation Autogyro (Kai • Kai 2) (IJA) • S-51J (Kai) (JMSDF/US)
 
Miscellaneous
Night Battle Aid
Facility & Crew
Consumables
Others
Unreleased & removed
HA - High-Angle or High-Altitude; DP - Dual-Purpose; LM - Late Model; CD - Concentrated Deployment or Carrier Division
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