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Kaiboukan No.4

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Info

Ship Card Kaiboukan No.4.png
Ship Card Kaiboukan No.4 Damaged.png
437
Ship Banner Kaiboukan No.4.png
Ship Banner Kaiboukan No.4 Damaged.png
第四号海防艦 (だいよんごうかいぼうかん) Kaiboukan No.4
Type D Kaiboukan Coastal Defense Ship

HP HP812FP Firepower3→15
ARM Armor4→15TORPTorpedo0
EVA Evasion39→79AA Anti-Air5→19
PLA Aircraft0ASW Anti-Submarine Warfare30→67
SPD SpeedSlowLOS Line of Sight2→11
RGE RangeShortLUK Luck18→76
AircraftEquipment
0Type 3 Depth Charge Projector
-Locked-
-Locked-
-Locked-
ModernizationFirepower 0 Torpedo 0 Anti-Air 1 Armor 0
Build Time0:14 (Unbuildable)Remodel Req
ConsumptionFuel 10 Ammo 10DismantleFuel 1 Ammo 1 Steel 1 Bauxite 0
IllustratorHozukaSeiyuuFujita Saki
Ship Card Kaiboukan No.4 Kai.png
Ship Card Kaiboukan No.4 Kai Damaged.png
437
Ship Banner Kaiboukan No.4 Kai.png
Ship Banner Kaiboukan No.4 Kai Damaged.png
第四号海防艦 (だいよんごうかいぼうかんかい) Kaiboukan No.4 Kai
Type D Kaiboukan Coastal Defense Ship

HP HP1519FP Firepower4→28
ARM Armor5→29TORPTorpedo0
EVA Evasion49→91AA Anti-Air11→41
PLA Aircraft0ASW Anti-Submarine Warfare32→76
SPD SpeedSlowLOS Line of Sight4→20
RGE RangeShortLUK Luck20→81
AircraftEquipment
012cm Single High-angle Gun Mount Model E
0-Unequipped-
-Locked-
-Locked-
ModernizationFirepower 1 Torpedo 0 Anti-Air 1 Armor 0
Remodel Level35Remodel ReqAmmo 70 Steel 50
ConsumptionFuel 10 Ammo 10DismantleFuel 1 Ammo 1 Steel 2 Bauxite 0
IllustratorHozukaSeiyuuFujita Saki

Gameplay Notes

Coastal Defense Ships (DE) are weak ships with high ASW Anti-Submarine Warfare stat, utilizing Depth ChargesSONAR ASW equipment. They:

Special Mechanics

  • None

Stats Exceptions

Base
  • Has 1 equipment slot.
Kai
  • Has 2 equipment slots.

Equipability Exceptions

DE Default equipment compatibility
✔️ Can Equip ❌ Cannot Equip
Fighter Dive Bomber Torpedo Bomber JetFighterBomber2.png Reconnaissance Aircraft Large Reconnaissance AircraftSp Reconnaissance SeaplaneRecon Seaplane BomberBomber Seaplane Fighter Large Flying Boat Rotorcraft Liaison Aircraft Aviation Personnel TransportationMaterial.png
Small Caliber Main Gun Anti-Aircraft Gun Anti-Aircraft Fire Director Depth Charges Small SONARSmall Small RADARSmall Medium Caliber Main Gun Large Caliber Main Gun Very Large Caliber Main GunSp Secondary Gun Large Secondary High-Angle GunSp_Sec Torpedoes Submarine TorpedoesSub Midget SubmarineMinisub Large SONARLarge Large RADARLarge Very Large RADARSp Submarine Equipment
Lookout Anti-Ground Rocket Smoke Generator Emergency Repair Personnel Ration Anti-Aircraft Shell Armor-Piercing Shell Engine Improvement Medium ArmorMedium Large ArmorLarge FlareIcon.png Searchlight Large SearchlightLarge Drum Canister Landing Craft Amphibious Vehicle Landing Forces Facility.png Command Facility Supplies
RE: Anti-Aircraft Gun Anti-Aircraft Fire Director Lookout Emergency Repair Personnel Ration Equipment Card Type 95 Depth Charge.png Equipment Card Type 2 Depth Charge.png Equipment Card Type 2 Depth Charge Kai 2.png
Equipability notes: Night Fighter=Fighter ; Night Torpedo Bomber=Torpedo Bomber ; JetFighterBomber1.png=JetFighterBomber2.png ; Night Reconnaissance Seaplane =Reconnaissance SeaplaneRecon ; Night Seaplane Bomber =Seaplane BomberBomber ; Small Caliber Main High-Angle GunSmall=Small Caliber Main Gun ; Medium Main High-Angle GunMedium=Medium Caliber Main Gun ; Secondary High-Angle GunSec=Secondary Gun ; Barrage Balloon=Smoke Generator
  • Default DE equipment compatibility

Fit Bonuses

[edit]Kaiboukan No.4 Equipment Bonuses
Equipment Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
RADARPassive Radiolocator (E27) + Type 22 Surface Radar Kai 4 (Calibrated Late Model)Passive Radiolocator (E27) + Type 22 Surface Radar Kai 4 (Calibrated Late Model) (1st equipped) (★0-6) +1 +1 +1 One-time
(1st equipped) (★7) +1 +2 +1 One-time
(1st equipped) (★8) +1 +2 +2 One-time
(1st equipped) (★9) +1 +1 +2 +2 One-time
(1st equipped) (★MAX) +1 +1 +3 +2 One-time
+ ★3+ 12.7cm Twin Gun Mount Model D Kai 212.7cm Twin Gun Mount Model D Kai 2 OR ★3+ 12.7cm Twin Gun Mount Model D Kai 312.7cm Twin Gun Mount Model D Kai 3 +1 +1 One-time
+ ★4+ Type 13 Air Radar Kai (Late Model)Type 13 Air Radar Kai (Late Model) +1 +4 +1 +3 One-time
Depth ChargesType 2 Depth Charge Kai 2Type 2 Depth Charge Kai 2 +1 +1
Ship-Type Bonuses
Small Caliber Main Gun12.7cm Twin Gun Mount Model C Kai 3 H12.7cm Twin Gun Mount Model C Kai 3 H + Air Radar +2 +2 One-time
(2nd equipped) + Air Radar +2 One-time
(3rd equipped) + Air Radar +2 One-time
High-Angle Gun12.7cm Single High-angle Gun Mount (Late Model)12.7cm Single High-angle Gun Mount (Late Model) (★7-MAX) +1 +1
(★7-MAX) + Surface Radar +1 +4 One-time
High-Angle Gun5inch Single Gun Mount Mk.30 Kai + GFCS Mk.375inch Single Gun Mount Mk.30 Kai + GFCS Mk.37 +1 +1
High-Angle Gun12.7cm Single High-angle Gun Mount Kai 212.7cm Single High-angle Gun Mount Kai 2 +1 +2
+ Surface Radar +1 +4 One-time
High-Angle Gun12cm Single High-angle Gun Mount Model E12cm Single High-angle Gun Mount Model E
OR High-Angle Gun12cm Single High-angle Gun Mount Model E Kai12cm Single High-angle Gun Mount Model E Kai
+2 +1 +2
+ Surface Radar +2 +3 One-time
+ Air Radar +2 +3 One-time
High-Angle Gun12cm Single High-angle Gun Mount Model E Kai12cm Single High-angle Gun Mount Model E Kai (★1) +1
(★2-3) +1 +2
(★4-5) +1 +1 +2
(★6-7) +1 +2 +2
(★8-9) +1 +2 +1 +2
(★MAX) +1 +3 +1 +2
RADARType 13 Air Radar Kai (Late Model)Type 13 Air Radar Kai (Late Model) +1 +1 +2
Depth ChargesType 2 Depth ChargeType 2 Depth Charge (★8-9) +1
(★MAX) +2
Depth ChargesHedgehog (Initial Model)Hedgehog (Initial Model) (1st equipped) +2 +1 One-time
Depth ChargesMk.32 ASW Torpedo (Mk.2 Thrower)Mk.32 ASW Torpedo (Mk.2 Thrower) +1
Anti-Aircraft Gun2cm Flakvierling 382cm Flakvierling 38 (★4-6) +1 +1
(★7-9) +1 +2 +1
(★MAX) +1 +3 +2
(★4-MAX) + Air Radar +1 One-time
Anti-Aircraft Gun3.7cm FlaK M423.7cm FlaK M42 (★6-7) +1 +1
(★8-9) +1 +1 +1
(★MAX) +1 +1 +1 +2
(★6-MAX) + Air Radar +2 One-time
Anti-Aircraft Gun25mm Anti-aircraft Autocannon Mount & Machine Guns25mm Anti-aircraft Autocannon Mount & Machine Guns +1 +1 +1

Drop Locations

ShipRarityTypeNo.World 1World 2World 3World 7World 4World 5World 6Remarks
123456123451234512345123451234512345
Kaiboukan No.4RareDE437Unbuildable

Voice Lines

Quotes

Event Japanese/English
Introduction
Play
I'm the 2nd of the Type-D coastal defense ships that were created under the Maru-Sen Plan, Kaiboukan No.4. Yeah, you can call me... "Yotsu" instead. Happy to work with you, Admiral.[1]
マル戦計画で生まれた、丁型海防艦、その二番艦、第四号海防艦です。そうねぇ、「よつ」…って呼んでくれていいよ。提督、よろしくね。
Introduction
Play
Born in Yokosuka, I'm the 2nd of the Type-D coastal defense ships, Kaiboukan No.4, or Yotsu. I'm feeling great today too! Admiral, let's work hard!
横須賀生まれの、丁型海防艦、その二番艦の、第四号海防艦、よつ。今日も元気です!提督、頑張ろう!
Library
Play
I'm the 2nd of the Type-D coastal defense ships that were created under the Maru-Sen Plan, Kaiboukan No.4.

I may be tiny, but I did my very best in Yokosuka's defense, at the Marianas, and at the Ogasawara islands!
Enemy submarines stand no chance. In the end, I worked hard at Ise Bay using this life Matsu saved.

マル戦計画で生まれた、丁型海防艦、その二番艦、第四号海防艦です。

ちっちゃいけれど、ものすごく頑張りました!横須賀の防備や、マリアナや、小笠原。
敵の潜水艦だって、負けません。最後は伊勢湾、松にもらった命頑張りました。

Secretary 1
Play
Yeees, did you call?
は〜い、よつ、呼んだ?
Secretary 2
Play
You have a job for me? You got it!
よつのお仕事?ヤルヤル!
Secretary 3
Play
Big sis Matsu, good work. Are you feeling a bit stiff? I'm good at giving back rubs. Eh? Admiral, you're feeling stiff too? Alright, then I'll rub your back next.
松の姉御、お疲れさまです。肩こってないですか?よつ、肩もみ上手なんですよ。えぇ?提督もこってるの?じゃあ、提督は、今度もんであげますね。
Idle
Play
Ah, big sis Matsu, I'll go get some youkan and tea. The Admiral's here too? Oh well. Then we'll just split it between us!
はぁ、松の姉御、よつ、羊羹とお茶持ってきますね。提督もいる?あ、そうか。じゃあ、よつのと、半ぶつです!
Secretary Married
Play
Ad-mi-ra-l, how are you doing? You good? No? Heh, then I'll give you a back rub! Rub-a-dub-dub! Howssat?
て・い・と・く、ど〜う?元気?そうでもない?ひん、じゃあ、よつが肩もんであげます!もみもみもみぃ〜。ど〜う?
Wedding
Play
Admiral, did you call me? If you didn't I'm leaving. Eh, you did? ...Is this for me? Whoaaa!
提督、よつ、呼んだ?間違いだったら戻るね。えぇ、間違いじゃない?…これ、くれるの?うひゃあぁ!
Looking At Scores
Play
You want information? Please wait.
情報ですね。お待ち下さい。
Joining A Fleet
Play
Type-D coastal defense ship, Yotsu, sortieing.
丁型海防艦、よつ、出撃します。
Equipment 1
Play
I'll equip this.
積みますね。
Equipment 2
Play
I see, I see.
うむ、うむ。
Equipment 3[2]
Play
I managed somehow.
なんとかなった。
Supply
Play
Yees, thank you.
は〜い、ありがとう。
Docking Minor
Play
I'm going for a quick repair.
ちょ〜こっと修理です。
Docking Major
Play
I need some biiiiig repairs.
ものすご〜く修理しないと。
Construction
Play
Yees, it's done.
は〜い、できました。
Returning From Sortie
Play
We managed to make it back.
なんとか戻ってこれました。
Starting A Sortie
Play
Yokosuka Naval Base Picket Coastal Defense Ship, Kaiboukan No.4, feeling great![3]
横須賀鎮守府警備海防艦、第四号海防艦、元気です!
Starting A Sortie
Play
The star of the Ise Bay Maritime Squadron Task Force, Yotsu, feeling great![4]
伊勢湾海上部隊、機動隊、その主力のよつ、元気です!
Battle Start
Play
Oh no, it's the enemy! Enemy sighted!
大変、敵だ!敵です!
Attack
Play
Stay awaaaaay!
こちくんな〜!
Air Battle/Daytime Spotting/Night Battle Attack
Play
Let's get them!
やつけろ〜!
Night Battle
Play
Are we going to run them down? For real?
深追いするの?本当に?
MVP
Play
Yeees, was I the best? Whoo!
は〜い、よつががんばちゃった?うひゃ!
MVP
Play
Yeees, was I the best? I really get a commendation!?
は〜い、よつががんばちゃった?感状!本当!
Minor Damage 1
Play
Whoaa!
わあぁ!
Minor Damage 2
Play
Ow, that hurts!
いたい、いたい!
Major Damage
Play
Argggh, that did it. Aaah, I have to get back to port...
がははぁ、くらった。うひゃぁ〜、港に戻らないと…
Sunk
Play
No way... is this... the end for me... It can't be... Big siiiis...
うっそ…よつ…ここで終わり…?うそだ…姉御ぉ〜…
  1. The Maru-Sen Plan was a planned expansion of the Imperial Japanese Navy, starting in April 1943.
  2. This line is shared with expedition selection, resource collection, instant repair and development.
  3. This was her first assignment.
  4. This was her final assignment.

Seasonal

Ship Japanese/English Notes
Autumn 2020
Play
Woohoo! I managed to get through summer! Now it's time for the Autumn Festival! It's the season for the Naval Base Autumn Festival! I'm really pumped for it!
うひゃぁー!よつ、夏を乗り切った!これからは、秋祭り!鎮守府秋祭りの季節!よつ、元気出る出る!
Christmas 2020
Play
I really, really love this "Christmas"! The cake is delicious. Ah, big sis Matsu! Try some of thiiiis~! Wheee!
よつ、このクリスマスって、好き好き!ケーキ、美味しい。あぁ、松の姉御!これ、食べてくださいぃ〜!うわぁ!
Setsubun 2021
Play
Demons begone! Fortune welcome! Who is our oni? Huh? The submarines? This will be a breeze. Here I gooo~!
鬼は、外!福は、内!ヨツ達の、鬼は、誰?えぇ?潜水艦?ヨツ得意、得意!よーし!行くぞ〜!
Valentine's Day 2021
Play
Admiral, big sis Matsu, this is for you. Chocolate from me. It's lobster-flavored. Just kidding.
提督、松の姉御、これ、あげます。ヨツの チョコレート。一世を風靡です。いざです。
White Day2021
Play
Wahooo! I got some return gifts from the Admiral and big sis Matsu! Matsu, I'm going to eat the Admiral's gift. *nom* It's yummy! This is yummy!
うひゃあぁ〜!提督と、松の姉御が、ヨツにお返ししてくれた!まず、提督の食べよ。はむ。美味しい!これ、美味しい!
8th Anniversary
Play
It's the 8th Anniversary? Let me congratulate you too.
八周年ですか?ヨツもお祝い申し上げます。
Rainy Season 2021
Play
It's really coming down. I wonder if the rain will stop soon... I know! Teruteru bouzu. Yotsu will make lots and lots! Yahoo!
ジメジメ降ります。早く雨上がらないかなー…そうか!てるてる坊主。ヨツもいっぱい作ります!うひゃあ!
Summer 2021
Play
You know, when it gets hot... I don't really feel like doing anything. *flop flop* I'm just going to take a nap here.
なんか、熱くなると…ヨツ、やる気なくなるんだよね〜。ふにゃふにゃ〜、ここで休んちゃうもんね〜。
Saury 2021
Play
Saury fishing? I know the coastal waters around here very, very well. We'll bring lots of lights to gather the fish. We don't... need depth charges?
サンマ漁ですね?この辺の近海は、ヨツ大得意です。魚を集める光はいっぱい入りますね。爆雷は…いらない?
9th Anniversary
Play
Uhya! Ninth~anni~versary! Yottsu, wishes everyone, the best!
うひゃ!九~周~年!ヨッツも、一杯、お祝い、申し上げます!
Summer 2022
Play
Ngh, I don't really like this season... Urgh...
ん~、この季節は…ヨッツ、ちょっと元気ない……むぅ~

Misc Lines

Ship Japanese/English Notes
Winter 2022 Event
Play
Yotsu, acknowledging. I've come to help.
ヨツ、了解です。お助けします。

CG

Regular
Seasonal

Trivia

General Information
  • Her nickname is Yotsu.
  • She was launched on the 30th of December 1943.
  • Sunk by Royal Navy aircraft at Toba, on the 28th of July 1945. Salvaged and scrapped on the 30th of June 1948.
Update History

See Also