Heian Maru

Info

544 平安丸 (へいあんまる) Heian Maru Kai Hikawa Maru Class Submarine Tender HP 36→41 FP 5→23 ARM 3→18 TORP 0 EVA 14→27 AA 10→28 PLA 0 ASW 0 SPD Slow LOS 11→30 RGE Medium LUK 6→44

Aircraft Equipment 0 12cm Single High-angle Gun Mount 0 -Unequipped- -Locked- -Locked- Modernization 1 0 1 1 Build Time 2:30 (Unbuildable) Remodel Req Consumption 30 10 Dismantle 2 1 12 1 Illustrator Akasaka Yuzu Seiyuu Yuikawa Asaki

549 平安丸改 (へいあんまるかい) Heian Maru Kai Kai Hikawa Maru Class Submarine Tender HP 39→44 FP 11→42 ARM 17→34 TORP 0 EVA 16→37 AA 12→32 PLA 3 ASW 0 SPD Slow LOS 18→39 RGE Medium LUK 11→57

Aircraft Equipment 1 12cm Single High-angle Gun Mount 1 25mm Twin Autocannon Mount 1 25mm Single Autocannon Mount -Locked- Modernization 1 0 1 1 Remodel Level 25 Remodel Req 480 500 Consumption 30 10 Dismantle 2 1 13 1 Illustrator Akasaka Yuzu Seiyuu Yuikawa Asaki

Gameplay Notes

Submarine Tenders (AS) are very weak, mostly used for certain Routings

• They can perform a powerful but limited special attack with SS(V).

Special Mechanics

Submarine Touch

She can trigger a Special Attack involving a Submarine Tender leading a fleet of at least two submarines.

• The flagship must be a Submarine Tender (AS) at Lv 30+,
  • She must not be more than moderately damaged (中破).
• The 2nd and 3rd ships must be Submarines (SS) or Aircraft Carrying Submarines (SSV) and not evacuated via SFFCF,
  • The 4th ship may optionally be a SS(V), but does not affect the above requirement,
  • At least two SS(V) among the 2nd, 3rd, and 4th ships must not be more than lightly damaged (小破),
  • If all 3 ships are SS(V), the 2nd and 4th ones will attack; if one of the two is moderately damaged (中破), the 3rd one will attack instead.
• The fleet must be a single fleet or a Striking Force Fleet,
• The formation needs to be either Echelon or Line Abreast,
• At least one Submarine Supply Material must be available in the inventory.

• Two SS(V) will launch torpedo strikes.
• The attack power of each strike is postcapped and unaffected by formation, engagement, or damage cap.
• A rough damage formula per Submarine attack is:

[math]\displaystyle{ \text{DMG}_\text{day} = \text{TP} \times ( 1.2 + 0.04 \times \sqrt{LV} ) }[/math] [math]\displaystyle{ \text{DMG}_\text{night} = ( \text{FP + TP} ) \times ( 1.2 + 0.04 \times \sqrt{LV} ) }[/math]

With

• [math]\displaystyle{ \text{DMG} }[/math] the damage result for day and night battle respectively,
• [math]\displaystyle{ \text{FP} }[/math] the submarine's Firepower stat,
• [math]\displaystyle{ \text{TP} }[/math] the submarine's Torpedo stat,
• [math]\displaystyle{ \text{LV} }[/math] the submarine's Level.
  • [math]\displaystyle{ 1.2 + 0.04 \times \sqrt{LV} = 1.6 }[/math] at Lv 100.

The number of attacks per Touch ranges from 2 to 4.

• Each submarine will trough either 1 or 2 torpedo strikes.
  • Only Lv 75+ submarines can trigger 2 strikes,
  • If a Lv 75+ submarine does not carry any Submarine Radar, it rolls between 1 and 2 strikes randomly (exact rate unclear yet),
  • If a Lv 75+ submarine does carry any Submarine Radar, it is guaranteed to roll 2 strikes.

One Submarine Supply Material will be consumed for EACH battle the Touch triggers in.

• If the Touch triggers twice in a battle, only a single will be consumed for this battle.
• If the Touch triggers in multiple nodes, one will be consumed for each node it is triggered.

It does not consume any extra ammo. If the game is refreshed before the battle ends, then no material will be consumed even if the touch triggered.

Trigger rate is affected by the Level and luck stat of the participating ships.

• Submarine Radars affect the trigger rate, each increasing the trigger rate by about 10 %.

It has a chance to trigger every time the AS takes a turn at shelling.

• It can trigger in both day and night for the same battle.
• It can only trigger once during day battle.
• If it fails to trigger during the day battle, there is still a chance to trigger it in the follow-up night battle.
• If all enemies sunk, then touch stops early.

The attack order is always (where amo,g the attacking submarines, 1 is upper one and 2 is lower one):

• 1-1-2-2 for 4 attacks,
• 1-1-2 or 1-2-2 for 3 attacks,
• 1-2 for 2 attacks.
  • If touch stops early, then attacks can be just 1-1
  • Also note that the actual order may be different from client animation of who shoots torpedoes, which always assigns attackers alternately like 1-2-1-2 or 1-2-1 or 1-2, so you may mismatch the real attack.

The touch can be activated multiple times per sortie.

When attacking a fleet, the usual Targeting rules apply.

• The torpedoes fired target ships independently,
• When facing a Combined Fleet, if any ship is present in the escort fleet on day battle, then all torpedoes will be fired to the escort fleet.

Regular
Taigei Special Attack Taigei Special Attack Damaged Jingei Special Attack Jingei Special Attack Damaged Jingei Special Attack Kai Jingei Special Attack Kai Damaged Chougei Special Attack Chougei Special Attack Damaged Chougei Special Attack Kai Chougei Special Attack Kai Damaged Heian Maru Special Attack Heian Maru Special Attack Damaged Heian Maru Special Attack Kai Heian Maru Special Attack Kai Damaged
Seasonal
Taigei Summer 2021 Special Attack Taigei Summer 2021 Special Attack Damaged Jingei Summer 2021 Special Attack Damaged Jingei Summer 2021 Special Attack Chougei Summer 2022 Special Attack Chougei Summer 2022 Special Attack Damaged Heian Maru Summer 2024 Heian Maru Summer 2024 Damaged Heian Maru Kai Summer 2024 Heian Maru Kai Summer 2024 Damaged Special Attack Summer bis 2024 Special Attack Summer bis 2024 Damaged Special Attack Kai Summer bis 2024 Special Attack Kai Summer bis 2024 Damaged

Equipability Exceptions

AS	Default equipment compatibility
	✔️ Can Equip	❌ Cannot Equip
	Recon	Sp Bomber
	Large Small	Sp Sp_Sec Sub Minisub Small Large Sp
	Medium	Large Large
	RE: Medium
	Equipability notes: = ; = ; = ; =Recon ; =Bomber ; Small= ; Medium= ; Sec= ; =

Heian Maru Equipability Exceptions
	Heian Maru/Kai
Ship Exceptions	Cannot Equip:

Fit Bonuses

[edit]Heian Maru Equipment Bonuses
Equipment	Extra Requirement									Note
Ship-Type Bonuses
12.7cm 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
12cm Single High-angle Gun Mount Model E Kai	(★2-3)			+1
	(★4-5)			+1					+2
	(★6-7)	+1		+1					+2
	(★8-9)	+1		+2					+2
	(★MAX)	+1		+2				+1	+2
12cm Single High-angle Gun Mount + 25mm Machine Guns Additions	(★0)	+1		+2				+1	+2
	(★1)	+1		+2				+1	+3
	(★2-3)	+1		+2				+1	+4
	(★4-5)	+1		+3				+1	+4
	(★6)	+1		+3				+1	+5
	(★7)	+1		+3				+2	+5
	(★8)	+1		+4				+2	+5
	(★9)	+1		+4				+2	+6
	(★MAX)	+2		+4				+2	+6
	+ Air Radar			+2					+2	One-time
Passive Radiolocator (E27) + Type 22 Surface Radar Kai 4 (Calibrated Late Model)	(1st equipped) (★7)							+1		One-time
	(1st equipped) (★8)							+1	+1	One-time
	(1st equipped) (★9)	+1						+1	+1	One-time
	(1st equipped) (★MAX)	+1						+2	+1	One-time
	+ ★3+ 12.7cm Twin Gun Mount Model D Kai 2 OR ★3+ 12.7cm Twin Gun Mount Model D Kai 3	+1						+1		One-time
	+ ★4+ Type 13 Air Radar Kai (Late Model)	+1		+4				+1	+3	One-time
2cm Flakvierling 38	(★4-6)			+1					+1
	(★7-9)	+1		+2					+1
	(★MAX)	+1		+3					+2
	(★4-MAX) + Air Radar			+1						One-time
3.7cm FlaK M42	(★6-7)			+1					+1
	(★8-9)	+1		+1					+1
	(★MAX)	+1		+1				+1	+2
	(★6-MAX) + Air Radar			+2						One-time
Fleet Communication Antenna	(★4)							+1
	(★5)	+1						+1
	(★6)	+1						+1	+1
	(★7)	+1						+2	+1
	(★8)	+2						+2	+1
	(★9)	+2						+2	+2
	(★MAX)	+2						+3	+2
Type 0 Passive Sonar	(1st equipped) (★3-4)								+1	One-time
	(1st equipped) (★5-6)				+1				+1	One-time
	(1st equipped) (★7)				+1				+2	One-time
	(1st equipped) (★8)				+2				+2	One-time
	(1st equipped) (★9)				+2			+1	+2	One-time
	(1st equipped) (★MAX)				+3			+1	+2	One-time
Kyoufuu Kai 2	(★3-4)	+1
	(★5-6)	+1		+1
	(★7-9)	+1		+1					+1
	(★MAX)	+1		+1				+1	+1

Drop Locations

Ship	Rarity	Type	No.	World 1						World 2					World 3					World 7					World 4					World 5					World 6					Remarks
				1	2	3	4	5	6	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5	1	2	3	4	5
Heian Maru	Rare	AS	544																																					Unbuildable

Voice Lines

Quotes

Event	Japanese/English
Introduction Play	My name is Heian Maru, and I am a Hikawa Maru-class ocean liner. Oh my apologies, I am now the remodeled, converted submarine tender, Heian Maru. It is a pleasure to make your acquaintance, Admiral.
	氷川丸級貨客船平安丸と申します。あらやだ、今は改装されて特設潜水母艦平安丸でございます。 提督、私のこともどうぞお見知りおきくださいね。
Introduction Play	Good morning. I am Heian Maru, a converted submarine tender, remodeled from the Hikawa Maru-class ocean liners. Admiral, my preparations are complete. Let us go to sea together!
	おはようございます。氷川丸級貨客船改装、特設潜水母艦平安丸です。提督、準備は整っています。共に、海へ!
Library Play	I am Heian Maru, the third of the Hikawa Maru-class ocean liners, as well as Heian Maru, the converted submarine tender. Yes, my older sister is the famed Hikawa Maru. I've heard she is still well-cared for in Yokohama in these gentler times. Admiral, please remember my contribution as her little sister, supporting the submarines operating out of Truk.
	氷川丸級貨客船三番船平安丸改め、特設潜水母艦平安丸です。ええ、姉はあの氷川丸。この優しい時代にも横浜の地にその姿が健在と聞いています。提督、潜水母艦となった氷川丸の妹、トラックの地で潜水艦たちの作戦を支えた私の事も、どうか覚えておいてくださいましね。
Secretary 1 Play	Ready to go.
	平安丸が参りましょう。
Secretary 1 Play	We're ready to go.
	平安丸が共に参りましょう。
Secretary 2 Play	Please, Admiral, leave the submarine care to me. I'll do whatever I can, little though it may be.
	提督、潜水艦のお世話はどうぞ、この不肖平安丸にお任せください。できること、できるだけ。
Secretary 3 Play	Oh? What is it? Oh my, Admiral! Is something the matter? Eh, something on my skirt? Oh silly me, my apologies. Thank you, Admiral. However, that area happens to be my torpedo hold. If it is treated too carelessly... yes, it's quite dangerous.
	あら?なんでしょう? あら、提督!どうかなさいましたか? え?スカートにゴミが? 私としたことが、失礼いたしました。提督ありがとうございます。あと、そのあたりは魚雷保管庫になります。あまり不用意に触られますと…はい、危険です。
Idle Play	Indeed. I would be lying if I said I don't miss my days as an ocean liner. However, my time in Truk in the South Pacific was not bad either. I.. did not dislike my time taking care of the submarines there.
	そうですね。貨客船時代が懐かしくないかと問われれば、いいえと言えば嘘になりましょう。でも、南洋トラックも悪いところではありませんでした。潜水艦たちのお世話は嫌いではありません。
Secretary Married Play	Admiral, you must be tired. I've gone ahead and made you some black tea. I added a little bit of honey and brandy. Please take a little break to warm up. That's another important part... of your job. Here, please.
	提督、お疲れでありましょう。私、勝手ながら紅茶をご用意させていただきました。少しだけ蜂蜜とブランデーを。温まって少しお休みになってください。それも大切な、あなたのお仕事です。はい、どうぞ。
Wedding Play	Admiral? Did you call for me? Oh, something important... what could it be? I hope it's not about breakwaters... oh my, for me...? Are you certain? My heart made its choice long ago. Yes, of course!
	提督?この平安丸をお呼びになりましたか? あ、大事なお話が…何でしょう。海壁かしら…あら、これを私に…本当にいいのでしょうか?私の心は、とうに決まっています。ええ、もちろん!
Looking At Scores Play	Information? I'll bring it over. Please review it carefully.
	情報でございますね。お持ちいたします。とくとご覧になってくださいませ。
Joining A Fleet Play	Converted submarine tender Heian Maru, based in Yokosuka, now weighing anchor.
	横須賀鎮守府所属、特設潜水母艦平安丸、いざ抜錨いたします。
Joining A Fleet Play	Sixth Fleet submarine squadron, converted submarine tender Heian Maru, now weighing anchor. Let us go!
	第六艦隊潜水戦隊、特設潜水母艦平安丸、いざ抜錨いたします。参りましょう!
Equipment 1 Play	My, my, thank you very much.
	まあまあ、ありがとうございます。
Equipment 2 Play	I am most grateful. I hope I can make good use of this...
	恐縮です。使いこなせるといいのですが…
Equipment 3 Play	Come, with Heian Maru!
	平安丸と、参りましょう!
Supply Play	You have my utmost gratitude for sharing these valuable supplies. Thank you very much.
	貴重な補給、大変恐縮でございます。感謝いたします。
Supply Play	You have my utmost gratitude for sharing these valuable supplies. Thank you.
	貴重な補給、大変恐縮でございます。ありがたく。
Docking Minor Play	My sincerest apologies. I will repair these injuries.
	大変恐縮です。私、損傷を修繕させていただきます。
Docking Major Play	I will be taking a brief leave of absence. Once again, my sincerest apologies.
	少々、お暇を頂きたく。誠に恐縮でございます。
Construction Play	An ally seems to have made her debut.
	お味方が、お目見得になられたようです。
Returning From Sortie Play	Operation complete, all ships have returned to port. Thank you everyone for your hard work.
	作戦完了、全艦帰投致しました。皆さん、大変お疲れ様でございました。
Starting A Sortie Play	Admiral, converted submarine tender Heian Maru is now sortieing! I look forward to working together, everyone!
	提督、特設潜水母艦平安丸、出撃いたします。皆さん、どうぞよろしくお願いいたします。
Battle Start Play	Admiral, we've spotted the enemy. We are engaging. All hands, prepare for battle. Let's begin!
	提督、敵を発見いたしました。合戦用意となります。皆さん、戦いのご準備を。参りましょう!
Attack Play	Me, in the lead position...
	私、先頭は…
Secondary Attack Play	This isn't really my specialty...
	あまり得意ではなくて…
Secondary Attack Play	This still isn't really my specialty...
	今でも、あまり得意ではなくって…
Special 1 Play	Sixth Fleet, First Submarine Squadron, go! Please attack, First Submarine Squadron!
	第六艦隊、第一潜水戦隊、参ります! 第一潜水戦隊の皆さん、お願いします! かかれ!
Night Battle Play	Let alone night battles... no, we must!
	まして、夜の戦いなど…いえ、是非もなし!
Night Battle Play	Like I said, night battles are... no, I'll go!
	だから夜戦なんて…いえ、私も行きます!
MVP Play	My battle results... me, Heian Maru, the former Hikawa Maru ocean liner converted into a submarine tender? Truly? If I was of use to everyone, I'm glad. Whew...
	私、氷川丸級貨客船改装の特設潜水母艦、この平安丸が戦果を…本当でしょうか？皆さんのお役に立てたのなら、ようございました。ふぅ…
Minor Damage 1 Play	Ahhhh!
	あああっ！
Minor Damage 2 Play	No, stop! No!
	いや、やめて!いや!
Major Damage Play	Uwahhh! Please flood the torpedo hold! Oh no... fire... contain it... please!
	うわああっ! 魚雷格納庫に注水お願いします! やばく…火災を…防いで…お願い!
Sunk Play	I'm sinking again, aren't I? Not in Truk this time, but to the bottom of the sea. I... I... ah...
	私、また、沈むのですね。今度はトラックではなく、海の、底に。私、私…ふあ…

Hourlies (Kai)

Time	Japanese/English
00:00 Play
01:00 Play
02:00 Play
03:00 Play
04:00 Play
05:00 Play
06:00 Play
07:00 Play
08:00 Play
09:00 Play
10:00 Play
11:00 Play
12:00 Play
13:00 Play
14:00 Play
15:00 Play
16:00 Play
17:00 Play
18:00 Play
19:00 Play
20:00 Play
21:00 Play
22:00 Play
23:00 Play

CG

Regular
Base Base Damaged Kai Kai Damaged Special Attack Special Attack Damaged Special Attack Kai Special Attack Kai Damaged

Trivia

General Information

• She was named in honor of Kyoto's historic Heian Shrine.
• She was launched on the 16th of April 1930 as an ocean liner,
• She was converted as a submarine tender between 1941 and 1942.
• She was sunk by US aircraft on the 18th of February 1944

Update History

• She was added on the 1st of March 2024 as Early Spring 2024 Event E2 drop.

Misc

• Her sister Hikawa Maru still exists today as a museum ship.
• She was involved with the future I-41 Captain, LCDR Itakura Mitsumi, in an accident involving alcohol.

See Also

• Wikipedia entry on Heian Maru