[Edit]
Type 4 Passive Sonar
No.149 四式水中聴音機
| |
Refittable Class | |
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
小型艦艇にも装備可能な、新型パッシブソナー兵装です。
九三式水中聴音機に比べて、その対潜発見能力は格段に向上しました。数は少ないですが、大戦末期に建造された後期型の駆逐艦などの対潜兵装として装備されました。
A new model passive sonar that can also be equipped on smaller ships. Compared to the Type 93 Passive Sonar, the submarine detection ability is on another level. There weren't many, but the late model destroyers and such constructed in the last stages of the great war equipped this as their ASW equipment.
Notes
Unbuildable
Category Ships with Type 4 Passive Sonar as stock equipment not found
- August 2015 Ranking Reward for all tiers.
- April 2016 Ranking Reward for all tiers.
- December 2016 Ranking Reward for all tiers.
- Quest B74 reward.
- Boosts ASW damage by 15% when used together with a depth charge. (both must be on the same ship)
- In the 28th September 2017 update, the stats of this equipment were modified to include +1 .
ASW Damage Synergy | |||
---|---|---|---|
Sonar | Large | Large Sonar | |
All Sonars | (?) Type 0 Passive Sonar (?) | ||
DCP Depth Charge Projectors (DCP) | |||
Type 94 Depth Charge Projector | Type 3 Depth Charge Projector | ||
Type 3 Depth Charge Projector (Concentrated Deployment) | Prototype 15cm 9-tube ASW Rocket Launcher | ||
RUR-4A Weapon Alpha Kai | |||
DC Depth Charge (Racks) (DC) | |||
Type 95 Depth Charge | Type 2 Depth Charge | ||
Lightweight ASW Torpedo (Initial Test Model) | Hedgehog (Initial Model) | ||
Other Other | |||
Type 2 12cm Mortar Kai | Type 2 12cm Mortar Kai (Concentrated Deployment) | ||
ASW Damage Modifiers | |||
Sonar + DCP/ Other | 1.15x | ||
Sonar + DC | 1.15x | ||
DCP + DC | 1.1x | ||
Sonar + DCP + DC | 1.4375x | ||
Armor Penetration | |||
Indepentant of synergies, these equipment provide armor penetration to ASW attacks:
|
Improvement
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Bonuses
Ship | Extra Requirement | Note | |||||||
---|---|---|---|---|---|---|---|---|---|
Yuubari Kai Ni D | +3 | +5 | |||||||
Isuzu Kai Ni Naka Kai Ni Yura Kai Ni Yuubari Kai Ni/Toku |
+1 | +3 | |||||||
Akizuki-class |
+1 | +2 |
Trivia
Historically, this sonar were equipped by Tachibana-Class Destroyers, No.1-Class Transports (modified from Matsu-Class) Late Model, and the cruiser later light carrier Ibuki, according to Japanese Wikipedia.