Hydroacoustic Search Data
The Hydroacoustic Search consumable is useful for hunting destroyers, defeating smoke screens, and evading torpedoes.
Available on all cruisers Tier IV and above (except the Italian tech-tree ones) as well as German battleships from tier VIII, and German and British destroyers (both from tier VI),[1] this consumable increases detection capability of enemy torpedoes and ships. It will detect any ship within the detection range without regard to obstacles such as smoke screens or terrain. It will also detect torpedoes at roughly double to triple the torpedo's nominal detection range.
The torpedo detection bonus stacks with the Vigilance commander skill.
Detection ranges are usually consistent among ships of the same tier, with the exception of German ships: they have a superior version with greater range and/or duration. Detection ranges of this consumable typically increase with ship tier. The notable exception is British destroyers, which have uniform (and short) ranges across all tiers. They also have a uniform and very long duration.
On most cruisers, Hydroacoustic Search 
can be exchanged for Defensive AA Fire 
. A few can mount the two simultaneously.
Notes
- ↑ Exceptions include Yūbari, Genova, Gallant, Tirpitz, Kronshtadt and Stalingrad.
| HYDROACOUSTIC SEARCH I |
HYDROACOUSTIC SEARCH II | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Cost: Free | Cost: 22,500
| ||||||||
| Ship | Tier | Nation(s) | Duration (seconds) | Torpedo Detection Range (km) | Ship Detection Range (km) | Cooldown (seconds) | Charges | Cooldown (seconds) | Charges |
| Duke of York | VII | 
|
100 | 3.00 | 4.00 | 180 | 1 | 120 | 2 |
| Z-39 | VII | 
|
100 | 3.50 | 5.00 | 180 | 2 | 120 | 3 |
| Haida | VII | 
|
180 | 2.50 | 3.50 | 180 | 2 | 120 | 3 |
| Loyang | VIII | 
|
110 | 3.75 | 5.50 | 180 | 2 | 120 | 3 |
| Bismarck | VIII |
|
100 | 3.50 | 5.00 | 180 | 2 | 120 | 3 |
| Battleships | IX - X |
|
120 | 4.00 | 6.00 | 180 | 2 | 120 | 3 |
| Cruisers | IV - VII |      
|
100 | 3.00 | 4.00 | 180 | 2 | 120 | 3 |
| Cruisers | VIII - X |
|
100 | 3.50 | 5.00 | 180 | 2 | 120 | 3 |
| Cruisers | IV - VII |
|
110 | 3.75 | 5.50 | 180 | 2 | 120 | 3 |
| Cruisers | VIII - X |
|
120 | 4.00 | 6.00 | 180 | 2 | 120 | 3 |
| Destroyers | VI - X |
|
180 | 3.00 | 3.00 | 180 | 2 | 120 | 3 |
| Destroyers | VI - VII |
|
100 | 3.00 | 4.00 | 180 | 2 | 120 | 3 |
| Destroyers | VIII - IX |
|
100 | 3.50 | 5.00 | 180 | 2 | 120 | 3 |
| Z-52 | X |
|
120 | 4.00 | 6.00 | 180 | 2 | 120 | 3 |
