Type 3 Active Sonar

[Edit] Type 3 Active Sonar No.47 三式水中探信儀
Small Sonar Effects: +10 +2 Scrap value: 1 2 (Buildable)
Refittable Ship Types
Coastal Defense Ship	Destroyer
Light Cruiser	Torpedo Cruiser
Heavy Cruiser	Training Cruiser
Aviation Cruiser	Fast Battleship
Battleship	Aviation Battleship
Light Carrier	Standard Aircraft Carrier
Armored Carrier	Seaplane Tender
Submarine	Aircraft Carrying Submarine
Submarine Tender	Fleet Oiler
Repair Ship	Amphibious Assault Ship

Introduction

対潜兵装です。
いわゆるアクティブソナーです。性能は残念ながら、ものすごく高くはありません。
それでも、他兵装と組み合わせて、練度の高い駆逐艦で敵潜水艦隊を文字通り駆逐してください！

An anti-submarine weapon, also called the "active sonar". It doesn't have impressive performance; however, when used in tandem with other equipment, a veteran destroyer will surely put enemy submarines down!

Notes

Buildable. Ships receive a boost of 15% more ASW firepower when this is used together with a depth charge launcher or depth charge, and 143% more power when all three types are used (must be on the same ship) Stock equipment of Makigumo Kai,  Naganami Kai, Amatsukaze Kai, Kiyoshimo Kai. Reward for top 200 in May 2013.

Quest reward from B36 and the Saury 2015 Seasonal Event.