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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
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

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。

This is the first practical ship-borne radar.
Primarily tasked for air search, it can also be used for surface search.
While it could be used in conjunction with the Type 13 radar, the Type 21 was 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, FuMO25 RadarFuMO25 Radar

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

Type 21 Air Radar Equipment Bonuses
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
Mogami Kai /Ni /TokuMogami Kai
Mogami Kai Ni
Mogami Kai Ni Toku

Mikuma Kai Ni /TokuMikuma Kai Ni
Mikuma Kai Ni Toku

Akizuki-classAkizuki
Teruzuki
Suzutsuki
Hatsuzuki
Fuyutsuki
(1st equipped) +3 +2 +2 One-time[1]

Additional synergy with: 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

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