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Type 21 Air Radar

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No.30 21号対空電探
Radar.png Large Radar (Air Radar)
Effects: AA+4 Accuracy+2 LoS+4
Scrap value: Steel 20 Bauxite 20 (Buildable)

Equipment Card Type 21 Air Radar.png

Equipment Character Type 21 Air Radar.png

Equipment Item Type 21 Air Radar.png

Equipment Full Type 21 Air Radar.png

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

Introduction

初の実用艦載電探です。
対空用ですが、対水上電探としても使用可能です。
13号電探と混載することも可能で、基本的にこの21号は大型艦に搭載されました。

The Type 22 radar was one of the first radars to be used aboard warships.
Primarily tasked for air search, it can also be used for surface search.
While this can be used in conjunction with the Type 13, the Type 21 is basically used aboard larger warships.

Mechanics

RADAR Radars are used to provide boosts to LoS Line of Sight and accuracy Accuracy. They are additionally used for:

Air RADARAir Air Radars are radars that:

  • Must have 2 or more AA Anti-Air,
  • Increase the Anti-Air of the fleet,
  • Are required to trigger most AACI.

Notes

How To Obtain

Buildable

Stock equipment of: Abukuma KaiAbukuma Kai, Chikuma Kai NiChikuma Kai Ni, Hiei Kai NiHiei Kai Ni, Isuzu Kai NiIsuzu Kai Ni, Isuzu KaiIsuzu Kai, Junyou Kai NiJunyou Kai Ni, Kinu KaiKinu Kai, Kirishima Kai NiKirishima Kai Ni, Kitakami Kai NiKitakami Kai Ni, Kongou Kai NiKongou Kai Ni, Maya KaiMaya Kai, Mikuma KaiMikuma Kai, Naka Kai NiNaka Kai Ni, Ooi Kai NiOoi Kai Ni, Suzuya KaiSuzuya Kai, Tone Kai NiTone Kai Ni, Yahagi KaiYahagi Kai

From quest: C56 (choice), Cy9 (x2, choice)

Uses

Used to improve: Type 13 Air RadarType 13 Air Radar, Type 21 Air RadarType 21 Air Radar, Type 42 Air RadarType 42 Air Radar, Type 21 Air Radar KaiType 21 Air Radar Kai, SK RadarSK Radar, Type 21 Air Radar Kai NiType 21 Air Radar Kai Ni, 15m Duplex Rangefinder + Type 21 Radar Kai Ni15m Duplex Rangefinder + Type 21 Radar Kai Ni

Updates History

  • 2013-04-23: Implemented with initial game release
  • 2015-06-12: Became improvable and upgradeable to Type 21 Air Radar KaiType 21 Air Radar Kai
  • 2021-03-30: Became upgradeable to Type 21 Air Radar Kai NiType 21 Air Radar Kai Ni, build rate with Akizuki-class increased, visible bonuses added

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
Mogami Kai/Ni/TokuMogami Kai
Mogami Kai Ni
Mogami Kai Ni Toku
Akizuki-class 		+3 +2 +2 Non-stackable between itself and Type 21 Air Radar Kai Ni

Improvement

Radar.png Type 21 Air Radar

Improvement → Conversion (helper-dependent)
★ Improvement
Level 		0~5 6~9
Equipment Card Type 21 Air Radar Kai.png
Type 21 Air Radar Kai
Equipment Card Type 21 Air Radar Kai 2.png
Type 21 Air Radar Kai 2
Development material Consumed 5/6 6/8 12/16 20/28
Improvement material Consumed 2/3 3/5 5/13 7/15
Equipment
Consumed 		- Equipment Card Type 21 Air Radar.png Equipment Card Type 21 Air Radar.pngx2 Equipment Card Type 21 Air Radar Kai.png
Items
Consumed 		- - Item Icon New Model Armament Material.png
Resources Fuel10 Ammunition0 Steel40 Bauxite50
Ship Helper Conversion
Ship Banner Ise.png
Ise/Kai Ni
Equipment Card Type 21 Air Radar Kai.png
Type 21 Air Radar Kai
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Ise Kai.png
Ise Kai
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Hyuuga.png
Hyuuga
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Hyuuga Kai.png
Hyuuga Kai
Mon Tue Wed Thu Fri Sat Sun
Hyuuga Kai Ni does not work
Ship Helper Conversion
Ship Banner Mogami.png
Mogami/Kai
Equipment Card Type 21 Air Radar Kai 2.png
Type 21 Air Radar Kai 2
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Mogami Kai Ni Toku.png
Mogami Kai Ni Toku
Mon Tue Wed Thu Fri Sat Sun
Mogami Kai Ni does not work
Improvement Improved effects
Large RADARLarge 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
[math]\displaystyle{ \text{AdjAA}_\text{fleet} }[/math] 1.50 2.12 2.59 3.00 3.35 3.67 3.96 4.24 4.50 4.74
Line of Sight 1.40 1.97 2.42 2.80 3.13 3.42 3.70 3.95 4.20 4.42
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

See Also

二式二号電波探信儀一型

v · e
Equipment List
Gallery • By Stats • Equipment Types & Icons • Development • Improvement
 
Main Guns
Foreign
10cm Twin HA Gun Mount (+ AAFD) • 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) • Dauntless (SBD • 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 (US) • TBF (US) • Swordfish (Mk.II Skilled • Mk.III Skilled) (UK) • Barracuda (Mk.II • Mk.III) (UK) • Mosquito TR Mk.33 (UK)
 
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
HA
Me 163B (Ger) • Shuusui (Proto)
 
Seaplanes
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
SB2U
HA - High-Angle or High-Altitude; DP - Dual-Purpose; LM - Late Model; CD - Concentrated Deployment or Carrier Division
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