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Heian Maru

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Info

 
 
544
 
 
平安丸 (へいあんまる) Heian Maru
Kai Hikawa Maru Class Submarine Tender
HP  36→41FP  5→23
ARM  3→18TORP 0
EVA  14→27AA  10→28
PLA  0ASW  0
SPD  SlowLOS  11→30
RGE  MediumLUK  6→44
AircraftEquipment
012cm Single High-angle Gun Mount
0-Unequipped-
-Locked-
-Locked-
Modernization  1   0   1   1
Build Time2:30 (Unbuildable)Remodel Req
Consumption  30   10Dismantle  2   1   12   1
IllustratorAkasaka YuzuSeiyuuYuikawa 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→44FP  11→42
ARM  17→34TORP 0
EVA  16→37AA  12→32
PLA  3ASW  0
SPD  SlowLOS  18→39
RGE  MediumLUK  11→57
AircraftEquipment
112cm Single High-angle Gun Mount
125mm Twin Autocannon Mount
125mm Single Autocannon Mount
-Locked-
Modernization  1   0   1   1
Remodel Level25Remodel Req  480   500
Consumption  30   10Dismantle  2   1   13   1
IllustratorAkasaka YuzuSeiyuuYuikawa Asaki

Gameplay Notes

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

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.[1]
  • 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.
  1. ↑ [1]

  • 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[1].

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.
  1. ↑ [2][3]
  2. ↑ [4]

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

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

Voice Lines

Quotes

Event Japanese/English
Introduction
Play
Introduction
Play
Library
Play
Secretary 1
Play
Secretary 1
Play
Secretary 2
Play
Secretary 3
Play
Idle
Play
Secretary Married
Play
Wedding
Play
Looking At Scores
Play
Joining A Fleet
Play
Joining A Fleet
Play
Equipment 1
Play
Equipment 2
Play
Equipment 3[1]
Play
Supply
Play
Supply
Play
Docking Minor
Play
Docking Major
Play
Construction
Play
Returning From Sortie
Play
Starting A Sortie
Play
Battle Start
Play
Attack
Play
Secondary Attack
Play
Secondary Attack
Play
Special 1
Play
Night Battle
Play
Night Battle
Play
MVP
Play
Minor Damage 1
Play
Minor Damage 2
Play
Major Damage
Play
Sunk
Play
  1. ↑ This line is shared with expedition selection, resource collection, instant repair and development.

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
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

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