World 7/7-5

This article is under construction.
Missing Information: branching, drops, enemy comps, air power.

7-1

7-2

7-3

7-4

7-5

World 1

World 2

World 3

World 7

World 4

World 5

World 6

World 7-5:【Extra Operation】ジャワ島沖 Off Java Island

Strategy Name	スラバヤ沖海戦・バタビア沖海戦 (Battle of Surabaya and Battle of Batavia)
Difficulty	☆☆☆☆☆☆☆☆☆☆☆
Item	None
Strategy Content	ジャワ島東部に攻略部隊を揚陸する！有力なる艦隊でスラバヤ沖にて敵の迎撃戦力を撃破し、敵残存艦隊も猛追！撃滅せよ！ Land an attack force on the Eastern Java Island! Off Surabaya, defeat an enemy interception force with your strong fleet. Chase and annihilate enemy survivors!

Phase 1
Fleet	3-4CL(T), 2-3DD 1(F)BB(V), 0-1CA(V), 1-2CL(T), 3-4DD
Route	A B D F G H K
Other Notes
AP	AS	AS+
0	0	0

Phase 2
Fleet	1BBV, 1CAV 1CL, 3DD
Route	A B D F J O Q
Other Notes	Installation
AP	AS	AS+
0	0	0

Phase 3
Fleet	1(F)BB(V)/CVL, 1CA(V), 1CL, 3DD
Route	A B D F J O P T
Other Notes
AP	AS	AS+
0	0	0

Map Unlocking

7-5 is unlocked after clearing 7-4 HP bar once.

Stage Guide

7-5 Branching Rules
Nodes		Rules
B	C	Does not meet the requirements to go to D
B	D	Meet ALL of the following requirements: Amount of CA(V) ≤ 2 Amount of CL ≥ 1 Amount of DD ≥ 2 If (F)BB(V) ≥ 2, then amount of DD ≥ 3 If CV(B) ≥ 1, then amount of DD ≥ 3 If CVL ≥ 2, then amount of DD ≥ 3 Otherwise, fleet is Fast+
D	E	Does not meet the requirements to go to F
D	F	Meet ALL of the following requirements: Amount of (F)BB(V) + CV(B) + CA(V) ≤ 2 Amount of CV(B/L) ≤ 2 Amount of CL + DD ≥ 3 If (F)BB(V) = 2, then amount of CL + DD ≥ 4 If fleet is Fast+, then amount of CL + DD ≥ 1 (?) Otherwise, fleet is Fastest
F	J	Active Branching
F	G	Active Branching
H	K	Active Branching
H	I	Active Branching
I	L	Fail the LoS check
I	M	Pass the LoS check (Cn4 ≥ 57(?))
J	N	Does not meet the requirements to go to O
J	O	Meet ALL of the following requirements: Amount of CV = 0 Amount of CVL ≤ 1 Amount of (F)BB(V) + CA(V) ≤ 2 For Slow fleet: If (F)BB(V) ≥ 1, then amount of DD ≥ 3 If CLT ≥ 1, then amount of DD ≥ 3 If CL ≥ 2, then amount of DD ≥ 3 Otherwise, fleet is Fast+
O	P	Active Branching
O	Q	Active Branching
P	R	Does not meet the requirements to go to T Pass the LoS check (Cn4 ≥ 63(?))
	S	Fail the LoS check
	T	Meet ALL of the following requirements: Amount of CV = 0 Amount of (F)BB(V) + CVL ≤ 1 Amount of (F)BB(V) + CA(V) ≤ 2 Amount of CL ≥ 1 Pass the LoS check (Cn4 ≥ 58(?)) Otherwise, fleet is Fastest

Ship Bonuses

DISCLAIMER: This information is based on user-submitted data and is subject to revisions as more data is gathered. Any version of the ship receives the bonus regardless of remodel.

Nodes B, C, D, E, J	Nodes G, K, L, M	Node Q	Nodes N, R, T
1.08x	1.13x	1.14x	-






1.1448x1.08 * 1.06	1.13x	1.14x	1.15x
1.06x	-	-	1.15x

Tips

Be advised: The Developers have mentioned that the enemy compositions and map may change over time [3], this could include the resource node possibly. So take advantage of the map while it is possible.

7-5 is a multiphase map with the following HP gauges:

The 1st boss requires 2 kills to clear
The 2nd boss requires 3 kills to clear
The 3rd boss requires 3 kills to clear
Clearing this map rewards 170 Ranking points and a Medal.

Recommended Fleets

In every phase:

Bringing AACI is recommended.
Bringing OASW is advised if not too detrimental to surface combat effectiveness.
Bringing historical ships is recommended.

Phase 1

3-4CL(T) 2-3DD
1(F)BB(V) 0-1CA(V) 1-2CL(T) 3-4DD
Route = A B D F G H K
- Shortest route to the boss

Gimmick Phase

In addition to clearing Phase 2, Node M must be S ranked to unlock Phase 3. This step can be done at any point, right after clearing Phase 1. As it can use the same fleet as Phase 1, it is more convenient to do it after clearing Phase 1.

Phase 1 or Phase 2's fleet
Route = A B D F G H I M

Phase 2

1BBV 1CAV 1CL 3DD
Route = A B D F J O Q
- Shortest route to the boss,
- The boss is an "Installation" and requires appropriate gears to be defeated,
- The boss fleet includes one or two PT Imp Packs, requiring appropriate gears to be defeated (these can be ignored if an S-rank is unnecessary):

Anti-

Unlike most standard Abyssals, are very small and fast.

All ship types suffer a severe accuracy and firepower penalty against PT Imp.
Attacking them with larger guns is not very effective, smaller guns being recommended instead.

Attack formula against PT Imps
The Attack formula against PT Imps:^[1]^[2] Jet Assault & Airstrike [math]\displaystyle{ \text{Damage}_\text{PT}= \text{Atk}_\text{post-cap} \times \text{Rand} [0.5 ; 0.8] }[/math] Shelling [math]\displaystyle{ \text{Damage}_\text{PT}= ( 0.3 \times \text{Atk}_\text{post-cap} + \sqrt{\text{Atk}_\text{post-cap}} + 10 ) \times \prod^{All Equipment}{\text{Mod}_\text{EquipmentAtk}} }[/math] Opening & Closing Torpedo Salvos [math]\displaystyle{ \text{Damage}_\text{PT}= 0.3 \times \text{Atk}_\text{post-cap} + \sqrt{\text{Atk}_\text{post-cap}} + 10 }[/math] Night Battle Night Battle data are unclear yet. With [math]\displaystyle{ \text{Atk}_\text{post-cap} }[/math] the post cap attack power defined here, [math]\displaystyle{ \text{Mod}_\text{EquipmentAtk} }[/math] the bonuses given by equipment, described below.

Accuracy formula against PT Imps

The Accuracy formula against PT Imps:^[3]^[4]^[5]^[6]

[math]\displaystyle{ \text{Hit Rate}_\text{vs.PT} \text{%} = \Big\lfloor \big\lfloor \lfloor \text{Acc}_\text{Standard} + \text{Mod}_\text{Amagiri} \rfloor \times \text{Mod}_\text{Formation} \times \text{Mod}_\text{Morale} \times \text{Mod}_\text{PT} + \text{Mod}_\text{Add} \big\rfloor \times \text{Mod}_\text{Vanguard} \times \text{Mod}_\text{Ship} \times ( \prod^{All Equipment}{\text{Mod}_\text{EquipmentAcc}} ) \times \text{Mod}_\text{Night} \Big\rfloor - \text{EVA}_\text{PT} + 1 }[/math]

With

[math]\displaystyle{ \text{Acc}_\text{Standard} }[/math] the standard accuracy described here
- PT Imps are "DDs" in the game, so the [math]\displaystyle{ \text{Mod}_\text{formation} }[/math] for vanguard is 1.1 during shelling, and 1.2 during the torpedo phase.
- Historical accuracy bonuses during Events are included in the Standard Accuracy Term, i.e. it is affected by the [math]\displaystyle{ \text{Mod}_\text{PT} }[/math] modifier.
[math]\displaystyle{ \text{EVA}_\text{PT} }[/math] the PT estimated evasion described bellow,

PT Imp stats
Type	Luck	Eva	[math]\displaystyle{ \text{EVA}_\text{PT} }[/math]
Type	Luck	Eva	Line Ahead	Echelon	Line Abreast
PT Imp Pack	?	?	81?	87?	?
PT Imp Pack II	60	220	80	87	85
PT Imp Pack III	60	250	82	89	88
PT Imp Pack IV	?	?	?	84?	?

The main Accuracy modifiers are

[math]\displaystyle{ \text{Mod}_\text{Amagiri} }[/math] being:
- 64 for Amagiri Kai Ni/D
- 32 for DD and DE adjacent to Amagiri Kai Ni/D.
- 0 otherwise.

[math]\displaystyle{ \text{Mod}_\text{Formation} }[/math] the Acc mod of each formation (see here),
[math]\displaystyle{ \text{Mod}_\text{Morale} }[/math] the morale effects (see here)
[math]\displaystyle{ \text{Mod}_\text{PT} = }[/math] 0.420.35 x 1.2
[math]\displaystyle{ \text{Mod}_\text{Add} = }[/math] 24(15+5) x 1.2,

[math]\displaystyle{ \text{Mod}_\text{Night} }[/math] being 0.7 during night battle, 1 during day battle.
[math]\displaystyle{ \text{Mod}_\text{Vanguard} }[/math] being 1.2 when using the Vanguard Formation.^[7]

[math]\displaystyle{ \text{Mod}_\text{Ship} }[/math] the bonus given by ship types, described below,
[math]\displaystyle{ \text{Mod}_\text{EquipmentAcc} }[/math] the bonuses given by equipment, described below,

Amagiri Kai Ni/D
has the ability to prioritize focusing on attacking PT Imp with significantly increased accuracy if any are present.

Ships placed in the composition slots above and below her will gain a noticeable accuracy boost and will prioritize attacking PT Imp if any are present.

During Events, some special bonuses may be added, with "historical" ships and equipment gaining some accuracy bonuses^[8].

Ship Type	[math]\displaystyle{ \text{Mod}_\text{Ship} }[/math]
DD & DE	1.0
CL, CLT, & CT	0.82
All other types	0.7

Equipment		[math]\displaystyle{ \text{Mod}_\text{EquipmentAcc} }[/math]		[math]\displaystyle{ \text{Mod}_\text{EquipmentAtk} }[/math]
Equipment		1st equipped	2nd equipped	1st equipped	2nd equipped
Small	Small Caliber Main Guns^[9]	1.3	1.15	1.5	2.11.5×1.4
Sec	Secondary Guns	1.55	1	1.3
	Anti-Aircraft Guns	1.45	1.35	1.2	1.441.2×1.2
	Skilled Lookouts	1.75	1	1.1
Armed	Soukoutei (Armored Boat Class)	1.45	1.3	1.2	?
Armed	Armed Daihatsu	1.45	1.3	1.2	?
Bomber	Seaplane Bombers & Seaplane Fighters	1.5	1	1.2
	Dive Bombers & Jets	1.375	1.2	1.4	1.821.4×1.3
All other equipment		1		1

Notes

It is recommended to use anti-PT setups on DDs only, such setups compromising overall combat effectiveness.
Having a Reinforcement Expansion is important because it can save a ship slot by containing a machine gun or skilled lookouts.
Combining equipment is recommended to see significant boosts to accuracy.
Using other setups improving accuracy is also advisable:
- Hidden accuracy bonus setups,
- Sparkled ships.

References:
↑ https://twitter.com/yukicacoon/status/1621162082245967876 ↑ https://wikiwiki.jp/kancolle/PT%E5%B0%8F%E9%AC%BC%E7%BE%A4 ↑ https://twitter.com/Xe_UCH/status/1554299068486397953?s=20&t=OHU47ATyROzVxkmLVVTL-w ↑ https://docs.google.com/spreadsheets/d/1-T9OfSDOoLKQXtBDeP80izgWl3f5G_eqMQYLW-WbSnw/edit#gid=680928319 ↑ https://twitter.com/Divinity_123/status/1492264067809038343 ↑ https://docs.google.com/spreadsheets/d/1BpctZEkEF94iOR1I704d3Rn9kKg1gAj9tK4cXdq1CNs/edit#gid=0 ↑ The formula is inconsistent for attackers with 2 small guns in vanguard formation. For the most part, underestimations (up to 10% difference in hit rate) are observed. It is not clear what may lead to this at the moment. ↑ https://twitter.com/Divinity_123/status/1492264067809038343?s=20&t=wbO5mDqGOL3gRBY9jG3c5w ↑ Medium Medium Main High-Angle Guns may work too.

[edit]

Phase 3

0-1(F)BB(V), 1-2CA(V), 1CL, 3DD
1(F)BB(V), 1CA(V), 1CLT, 1CL, 2DD (FAST)
1CVL, 1-2CA(V), 1-2CL, 2-3DD
- 2CL in a slow fleet requires 3DD to route J -> O
Route = A B D F J O P T
- Shortest route to the boss

1-2(F)BB(V), 0-1CVL, 1CL, 3DD
Route = A B D F J O P R T
- Allows an extra battleship or light carrier in exchange for an extra surface combat at node R.

6XX (FASTEST)
Route = A B D F J O P T
- Shortest route to the boss
- See Improving Ship Speed.

There is a LoS check at P (Cn4 = 58?)
Using historical ships and/or high-damage night attacks is recommended as Batavia Princess has up to 244 armor in the Last Dance formation of the boss node.

SS and Carrier Exp farming

The 1st enemy node being an Air Node, it's possible to take advantage of how it works to level up any SS(V) as well as "carriers" risk-free.

All SS(V) won't take any damage on Node A, so any SS(V) fleet can level up risk-free on this node.
If possessing one or more 12cm 30-tube Rocket Launcher Kai Ni, it is possible to take advantage of the AARB mechanic to also level up CV(L), BBV, CAV, and AV.
- By equipping one RLK2 on carriers, passing a certain AA threshold, said carrier won't take any damage on the Air Node.
- Having more than 1 RLK2 on the same ship decreases the AA threshold, making it possible to level up weaker carriers.
Once Node A cleared , retreat to the base and repeat.

Enemy Compositions

World 7/7-5/Enemy comps

Ship Drops

World 7/7-5/Ship drops

[1] ttps://twitter.com/yukicacoon/status/1621162082245967876

[2] ttps://wikiwiki.jp/kancolle/PT%E5%B0%8F%E9%AC%BC%E7%BE%A4

[3] ttps://twitter.com/Xe_UCH/status/1554299068486397953?s=20&t=OHU47ATyROzVxkmLVVTL-w

[4] ttps://docs.google.com/spreadsheets/d/1-T9OfSDOoLKQXtBDeP80izgWl3f5G_eqMQYLW-WbSnw/edit#gid=680928319

[5] ttps://twitter.com/Divinity_123/status/1492264067809038343

[6] ttps://docs.google.com/spreadsheets/d/1BpctZEkEF94iOR1I704d3Rn9kKg1gAj9tK4cXdq1CNs/edit#gid=0

[7] The formula is inconsistent for attackers with 2 small guns in vanguard formation. For the most part, underestimations (up to 10% difference in hit rate) are observed. It is not clear what may lead to this at the moment.

[8] ttps://twitter.com/Divinity_123/status/1492264067809038343?s=20&t=wbO5mDqGOL3gRBY9jG3c5w

[9] Medium Medium Main High-Angle Guns
may work too.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

World 7/7-5

Contents

World 7-5:【Extra Operation】ジャワ島沖 Off Java Island

Map Unlocking

Stage Guide

Ship Bonuses

Tips

Recommended Fleets

Phase 1

Gimmick Phase

Phase 2

Phase 3

SS and Carrier Exp farming

Enemy Compositions

Ship Drops

Navigation menu

Search

World 7/7-5

World 7-5:【Extra Operation】 ジャワ島沖 Off Java Island

Map Unlocking

Stage Guide

Ship Bonuses

Tips

Recommended Fleets

Phase 1

Gimmick Phase

Phase 2

Phase 3

SS and Carrier Exp farming

Enemy Compositions

Ship Drops

Navigation menu

Search

World 7-5:【Extra Operation】ジャワ島沖 Off Java Island