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World of Warships Supertest: British Tier X Submarine Thrasher

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Historical background

HMS Thrasher was a T-class submarine of the Royal Navy. The ship was laid down in November 1939, launched in November 1940, and commissioned in May 1941.

Thrasher was first deployed in the Mediterranean after her commissioning. In less than a year, she sank around 20 000 tons of enemy shipping with a mix of German, Italian, Greek, or French ships. Funnily enough, the biggest damage she suffered during that time was from friendly fire. She was bombed in error by a British bomber while she was near the coasts of Egypt. The damage received took a month to repair.

In February 1942, after sinking a supply ship, Thrasher was attacked. After surfacing, the crew discovered two unexploded bombs stuck in the gun-casing. The brave Lieutenant Peter Scawen Watkinson Roberts and Petty Officer Thomas William Gould took care of this potentially fatal threat to their submarine and managed to throw both bombs over the side. As a result of their heroic action, both men received the Victoria Cross, the highest and most prestigious award in the British honours system.

Later on, the ship was assigned to the Far East in the early part of 1945. While deployed there, Thrasher sank another 24 ships before the end of the war.

After the war ended, Thrashed was sold and broken up for scrap in March 1947.

Ship’s preview

Ship’s camouflages

For the classic reminder, this is a ship in testing, anything can change so don’t look at her like she would already be released.


Main battery




Propulsion: 2 500 HP

‎ASDIC 10 Mod. A


102 mm QF Mark XII on an SI mount

533 mm Mk VIII Mod 0

‎ASDIC 10 Mod. B

533 mm Mk VIII

General Characteristics

Health16 800 HP
Torpedo Damage Reduction0 %
Displacement1 575 tons
Overall length83.08 m
Beam5.83 m
Overall height (keel to the highest point on the ship)5.39 m
Freeboard2.29 m
Main Armament
Maximum Firing Range6.000 km
102 mm QF Mark XII on an SI mount1 x 1 102 mm
Torpedo Armament
Maximum Firing Range9.000 km – stock
10.000 km –  upgraded
533 mmBow – 8 x 1 533 mm
Stern – 3 x 1 533 mm
Dive capacity
Battery capacity340 units
Dive capacity depletion1.0 unit/s
Dive capacity recharge rate0.6 unit/s
Surface maneuverability
Maximum speed26.0 knots
Turning radius580 m
Rudder shift time6.0 s
Underwater maneuverability
Maximum speed18.0 knots
Diving plane shift time15.5 s
Maximum dive and ascent speed3.5 m/s
Surface detectability6.1 km
Periscope depth detectability2.3 km
Air detectability2.3 km

Main Armament

1 x 1 102 mm QF Mark XII on an SI mount
The gun mount can turn at 360°
Maximum Firing Range8.500 km
Reloading Time5.0 s
180 Degree Turn Time18.0 s
Optimal firing angles at the front
Optimal firing angles at the rear27°
Sigma2.00 sigma
Maximum Dispersion60 m
Type of ProjectileSAP – 102 mm CS 35 lb
Alpha Damage2 250
Penetration capacity29 mm
Projectile Speed850 m/s
Air Drag0.344
Projectile Mass14.1 kg
Ricochet Angles80° – 85°

Torpedo Armament and Sonar

Sonar ‎ASDIC 10 Mod. A – Stock
Sonar ‎ASDIC 10 Mod. B – Upgraded

Reloading Time7.5 s – Stock
6.0 s – Upgraded
Maximum Distance10.000 km
Ping effect duration on a sector highlighted once25 s
Ping effect duration on a sector highlighted twice65 s
Ping velocity500 m/s
Ping width15 m
8 x 1 533 mm bow torpedo launchers
4 loaders
3 x 1 533 mm stern torpedo launcher
3 loaders
Acoustic Homing Torpedo 533 mm Mk VIII Mod 0 – Stock
Acoustic Homing Torpedo 533 mm Mk VIII – Upgraded

Reloading Time40 s
Maximum Distance9.000 km – Stock
10.000 km – Upgraded
Firing angles at the front0 – 15°
Firing angles at the rear0 – 15°
Damage4 630 – Stock
5 167 – Upgraded
Flooding Chance77%
Speed75 knots – Stock
78 knots – Upgraded
Arming distance302 m – Stock
314 m – Upgraded
Surface Detectability1.7 km


Slot 1
Slot 2
Slot 3
Damage Control Party
consumable_PCY009_CrashCrewPremiumNumber of charges: 3
Work time: 15 s
Cooldown: 60 s
Number of charges: 6
Work time: 30 s
Cooldown: 30 s
Interval between pings: 4 s
Ship bearing: 6.0 km
Submarine Surveillance
Preparation time: 330 s
Work time: 60 s
Cooldown: 120 s
Detection of submarines: 6.0 km

The Armor

Personal Opinion

Welp… no need to think too hard to find a nickname for that one. Trasher stays right in line with the previous ships although her battery capacity advantage is now also gone. In action, U-2501 does absolutely everything better. The torpedoes, the survivability, the capacity to stay underwater, and the mobility, Thrasher is outmatched in all of these departments while still suffering from the other big weaknesses of her predecessors. She somewhat has an advantage with the short arming distance of her torpedoes against destroyers but then again, not sure if you would survive an encounter at such range.
As a unique gimmick, she has a controllable deck gun but with such a low HP pool and poor damage output, not sure if you would even want to risk using it. It is especially true considering that she gets standard destroyer dispersion, unlike I-56 which has the same dispersion as the Elbing branch.

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2 thoughts on “World of Warships Supertest: British Tier X Submarine Thrasher

  1. Unless Thrasher is armed in Poseidon torpedoes, maximum firing range should be in meters – 10 000 km seems …. optimistic 😉

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