Type 93 Passive Sonar

Introduction

対潜兵装です。
いわゆるパッシブソナーです。性能は残念ながら、あまり良くはありません。
でも、あるとないとでは大違い！対潜作戦のお供に、ぜひどうぞ！

An anti-submarine equipment, also known as passive sonar. It may not perform its job well, but its better than nothing. Please use it for anti-submarine operations!

Notes

Buildable. Boosts ASW damage 15% when used together with a depth charge (both must be on the same ship).