Drum/Equipment Bonuses

Collapse[edit]Drum Equipment Bonuses
Equipment	Extra Requirement									Note
533mm Quintuple Torpedo Mount (Late Model)	-	+2	+4
21inch 6-tube Bow Torpedo Launcher (Initial Model) OR 21inch 6-tube Bow Torpedo Launcher (Late Model)	(1st equipped)		+2							One-time
Submarine 4-tube Stern Torpedo Launcher (Initial Model) OR Submarine 4-tube Stern Torpedo Launcher (Late Model)	(1st equipped)		+2							One-time
21inch 4-tube Bow Torpedo Launcher (Initial Model) OR 21inch 4-tube Bow Torpedo Launcher (Late Model)	(1st equipped)		+1						+2	One-time
SJ Radar + Submarine Conning Tower Equipment	(1st equipped)		+1					+2	+2	One-time
Ship-Type Bonuses
Type D Kouhyouteki Kai (Kouryuu Kai)	-	-1							-7
Late Model 53cm Bow Torpedo Mount (8 tubes)	(1st equipped) (★8-9)		+1							One-time
	(1st equipped) (★MAX)		+1					+1		One-time
Special Type 4 Amphibious Tank OR Special Type 4 Amphibious Tank Kai	(★0)	+1	+2						-1
	(★1-2)	+1	+3						-1
	(★3-5)	+1	+3					+1	-1
	(★6-9)	+1	+3					+2	-1
	(★MAX)	+1	+4					+2	-1
Special Type 4 Amphibious Tank Kai	(★0-1)	+1	+1					+1
	(★2-3)	+2	+1					+1
	(★4-7)	+2	+2					+1
	(★8-MAX)	+3	+2					+1
Late Model Submarine Radar & Passive Radiolocator	+ Late Model Bow Torpedo Mount (6 tubes) OR Skilled Sonar Personnel + Late Model Bow Torpedo Mount (6 tubes) OR Late Model 53cm Bow Torpedo Mount (8 tubes)		+3						+2	One-time
Late Model Radar & Passive Radiolocator + Snorkel Equipment	(★3-4)								+1
	(★5-9)		+1						+1
	(★MAX)		+1					+1	+1
	(★2-MAX) + ★4+ Skilled Sonar Personnel + Late Model Bow Torpedo Mount (4 tubes)		+7					+5		One-time