Docking

• Docking (repair) can restore your ships to full health, which costs you fuel and steel.
• Larger and higher-level ships take more time to repair. But it is possible to repair a ship instantly by using fast repair material (bucket).
• If a ship ends repair with 39 morale or less, it will be reset to 40 upon finishing.
• You can shave off the last minute of repair time by switching to the docking screen when a ship has less than one minute of repair time to go.
• You start the game with two repair dock slots—you can pay money (DMM points) to buy keys in the shop and expand to 3 or 4 slots.

Repair time

[math]\displaystyle{ \text {Total repair time} = \text {HP loss} \times \text {base repair time} \times \text {ship type} + \text {30 seconds} }[/math]

Ship Type	Multiplier
Battleship, Aviation Battleship, Aircraft carrier, Repair ship	2
Heavy Cruiser, Aviation Cruiser, Fast battleship, Light aircraft carrier	1.5
Light Cruiser, Destroyer, Submarine Aircraft Carrier, Seaplane tender, Amphibious assault ship, Torpedo Cruiser	1
Submarine	0.5

• Fast battleship: Kongou-class, Bismarck
• Submarine Aircraft Carrier: I-58 Kai, I-19 Kai, I-8 Kai, and I-401.
• Amphibious assault ship: Akitsumaru
• Repair ship: Akashi
• These are assumed times based on calculations and rounding.
• Represented as [minutes]:[seconds]

Lv Base repair time 1 0:10 2 0:20 3 0:30 4 0:40 5 0:50 6 1:00 7 1:10 8 1:20 9 1:30 10 1:40 11 1:50 12 2:00 13 2:05 14 2:10 15 2:25 16 2:30 17 2:35 18 2:40 19 2:45 20 3:00

Lv Base repair time 21 3:05 22 3:10 23 3:15 24 3:20 25 3:25 26 3:30 27 3:45 28 3:50 29 3:55 30 4:00 31 4:05 32 4:10 33 4:15 34 4:20 35 4:25 36 4:40 37 4:45 38 4:50 39 4:55 40 5:00

Lv Base repair time 41 5:05 42 5:10 43 5:15 44 5:20 45 5:25 46 5:30 47 5:45 48 5:50 49 5:55 50 6:00 51 6:05 52 6:10 53 6:15 54 6:20 55 6:25 56 6:30 57 6:35 58 6:40 59 6:45 60 7:00

Lv Base repair time 61 7:05 62 7:10 63 7:15 64 7:20 65 7:25 66 7:30 67 7:35 68 7:40 69 7:45 70 7:50 71 7:55 72 8:00 73 8:05 74 8:10 75 8:25 76 8:30 77 8:35 78 8:40 79 8:45 80 8:50

Lv Base repair time 81 8:55 82 9:00 83 9:05 84 9:10 85 9:15 86 9:20 87 9:25 88 9:30 89 9:35 90 9:40 91 9:45 92 10:00 93 10:05 94 10:10 95 10:15 96 10:20 97 10:25 98 10:30 99 10:35 100

Repair cost

See ship list or remodeled ship list for their base fuel cost.

[math]\displaystyle{ \text {Steel} = \text {Base fuel cost} \times \text {HP loss} \times 0.06 }[/math]
[math]\displaystyle{ \text {Fuel} = \text {Base fuel cost} \times \text {HP loss} \times 0.032 }[/math]

Example

Level 67 Kongou with 41/75 HP (34 damage) will have:

• Repair time:
  • [math]\displaystyle{ 34 \times \text{455 seconds} \times 1.5 + \text{30 seconds} = \text{23235 seconds or 6:27:15} }[/math]
• Resource costs:
  • [math]\displaystyle{ 90 \times 34 \times 0.06 = \text{183 steel} }[/math]
  • [math]\displaystyle{ 90 \times 34 \times 0.032 = \text{97 fuel} }[/math]