Late Model Submarine Radar & Passive Radiolocator/Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
I-47 KaiI-47 Kai +4
I-47I-47
I-400 ClassI-400
I-401
+3
I-58I-58 (any) +2
Any SS(V) (including above) + IJN Late Model Bow TorpedoLate Model Bow Torpedo Mount (6 tubes)
Skilled Sonar Personnel + Late Model Bow Torpedo Mount (6 tubes)
Late Model 53cm Bow Torpedo Mount (8 tubes)
+3 +2