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Type 21 Air Radar Kai

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No.89 21号対空電探改
Radar.png Large Radar (Air Radar)
Effects: AA+5 Accuracy+3 Evasion+1 LoS+6
Scrap value: Steel 21 Bauxite 23 (Unbuildable)

Equipment Card Type 21 Air Radar Kai.png

Equipment Character Type 21 Air Radar Kai.png

Equipment Item Type 21 Air Radar Kai.png

Equipment Full Type 21 Air Radar Kai.png

Refittable Class
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



This is the second improved version of the Type 21 air radar.
Various things have been improved, increasing its reliability.
Primarily used as an air search radar, it can also be used as a surface search radar.


How To Obtain

Stock equipment of: Hiei Kai Ni CHiei Kai Ni C (★+5)

Upgradeable from: Type 21 Air RadarType 21 Air Radar

Ranking reward for:

  • Apr 2014: 1-3
  • May 2014: 1-3
  • Jun 2014: 1-5, 6-20, 21-100, 101-500
  • Aug 2014: 1-5, 6-20, 21-100
  • Nov 2015: 21-100


Used to improve: Type 21 Air RadarType 21 Air Radar, 15m Duplex Rangefinder + Type 21 Radar Kai Ni15m Duplex Rangefinder + Type 21 Radar Kai Ni

Updates History

  • 2014-05-14: Implemented as ranking reward
  • 2015-06-12: Became improvable

Akashi's Improvement Arsenal

Type Name Resource Day 2nd Ship Note
Fuel Ammunition Steel Bauxite Item Icon Development Material.png Item Icon Improvement Material.png # of equipment needed for that upgrade. An asterisk following the number indicates a different equipment is required. Sun Mon Tue Wed Thu Fri Sat
RADAR Type 21 Air Radar Kai 0 10 0 60 70 6/8 2/3 1xRadar.png  
X X Musashi/Kai
Musashi Kai Ni
6 10/12 4/8 2xRadar.png
10 - - -

See Also