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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:

Best craft recipe Fuel10 Ammunition10 Steel200 Bauxite201 Akizuki-classSecretary: Akizuki-class
Akizuki-class
Ship Banner Akizuki.png
Ship Banner Teruzuki.png
Ship Banner Suzutsuki.png
Ship Banner Hatsuzuki.png
Ship Banner Fuyutsuki.png 		AviationShips with special crafting will have
reduced rates of other specific equipment
Especially Akitsu Maru, Shinshuu Maru, Kumano Maru, Souya (AGS) Secretary: Category Aviation
Ship Types included:
CAV, CVL, BBV, CV, AV, LHA, CVB, Souya (AGS)

Stock equipment of:

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

Uses

Used to improve:

Used by quest: F124

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]
  1. ↑ Shared with Type 21 Air Radar Kai 2Type 21 Air Radar Kai 2

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 1.98 2.42 2.80 3.13 3.43 3.70 3.96 4.20 4.43
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

v · e
Equipment List
Gallery • By Stats • Equipment Types & Icons • Development • Improvement
 
Main Guns
Foreign
10cm Twin HA Gun Mount (Kai • + 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
18 cm
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)
Myoujou (Prototype • Kai) • Type 99 (Skilled • Model 22 • Model 22/Skilled • Egusa) • Suisei (Model 12A (w/ Cluster Bombs • w/ Photo Fuze Bombs) • Model 22 (634 • 634/Skilled) • 601 • Egusa) • Prototype Nanzan
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 • Kai Northeastern Air Group) • 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
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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