Great Torpedo! only one thats so easy that even i can use it on my submarine :). (i would rather shoot myself than try to do advanced logic stuff)

島の近くにいる船や小型艇、高速な旋回をする船には誘導できません。
これは、旋回の遅いある程度大型な船向けの魚雷です。

It cannot guide ships or small boats near the island, or ships that turn at high speed.
This is a torpedo intended for fairly large ships with slow turning speeds.

(I used Google Translate)

not working its crap