Grom - Tier VII European (Polish) Destroyer 1937


flag shipicon Grom - Tier VII European (Polish) Destroyer 1937

Grom and Błyskawica entered service in 1937, becoming the strongest European destroyers of their time after the latest French ones.
Changes to European destroyers
  • AP shells have been removed from all ships of the new branch.
The gameplay concept behind the new branch of European destroyers involves them using mostly HE shells. Since AP shells are rarely used on destroyers, we decided to remove them from these new ships.
Polish Navy
The flag of the Polish Navy. The flag is composed of the country's national colors, with two braids and the coat of arms of Poland. It was adopted as a naval ensign in 1927 and has been in use ever since.
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 Project History

Project History

With the outbreak of World War II, the destroyers broke through the Baltic to Britain to help escort wartime supply convoys to Poland. However, the convoys were never organized due to the rapid fall of Poland, and Grom came under the command of the British Navy. Being part of it, she took part in the Norwegian campaign. On May 4, 1940, one of Grom's torpedo tubes was hit by a bomb, which caused the torpedoes to detonate. It took less than 3 minutes for the ship to sink.
 Grom Info

Grom Info

Ship Name: flag  VII Grom
Level: 7
Paper ship: No
Class:  Grom-class  destroyer
WG introduction: February 10, 2023
Status during testing and early access: shipicon Special Ship
Status when final:  Tech Tree
Estimated ship release: 12.4
Estimated resource cost when final: image 69 000  CREDITS 5 700 000
Nation: flag Poland
Current development status: Work in Progress


Hit Points: 15,500 hp
Overall: 6-16 mm
Side Plating: 16 mm
Deck Plating: 16 mm
Bottom: 15 mm
Turret Plating: 7 mm
Superstructure: 10 mm
Tonnage: 3,383 t
 Main Battery Armament

Main Battery Armament

3x2 120 mm/50 wz.36 Bofors on a shielded mount:
1x1 120 mm/50 wz.36 Bofors on a shielded mount:
Max Range: 10.9 km
Reload: 6.0 s
180° Turn Time: 18.0 s
Dispersion at Max Range: 97 m
Sigma: 2.00σ

Shell Types:

HE Shells 7x 120 mm HE:
Alpha Damage: 1700
Alpha Piercing HE: 20.0 mm
Ammo Type: High Explosive
Shell Air Drag: 0.3177
Shell Always Ricochet At: 60.0°
Normalization: 68.0°
Shell Detonator: 0.001
Shell Detonator Threshold: 2.0
Shell Krupp: 32.0
Shell Mass: 24.0 kg
Shell Ricochet At: 91.0°
Shell Velocity: 900.0 m/s
Burn Probability: 8%
depthcharge Depth Charges

Depth Charges

Maximum damage: 2400
Charges: 2
Bombs per charge: 8
Reload time: 40 s
torpedoes Torpedoes


2x3 533 mm TR Mk IV/Torped M1943 mod 0:
Max Damage: 7,533
Range: 6.0 km
Reload: 75 s
Speed: 72 kts
180 degree turn time: 7.2 s
Torpedo detectability: 1.6 km
Enemy response time after spotting these torps: 8.55 s
aadefence Anti Aircraft Defence

Anti Aircraft Defence

Mid Range:
2x2 40 mm/56 Bofors on a №3 mount:
Firing range: 3.5 km
Hit Probability: 100 %
Damage by Zone Area AA: 88
Short Range:
4x2 13.2 mm Hotchkiss wz.1930:
Firing range: 1.5 km
Hit Probability: 95 %
Damage by Zone Area AA: 46


Maximum speed: 39.0 knots
Turning circle radius: 610 m
Rudder shift time: 4.3 s
Propulsion: 54,000 hp


Surface Detectability: 7.0 km
Air Detectability: 3.1 km
Detectability by enemy subs: 0-3.1 km
Detectability whilst firing in smoke: 2.6 km
consumables Available Consumables

Available Consumables

Slot 1: Damage Control Party:
Charges: infinite
Action Time: 5 s
Reload Time: 40 s
Slot 2: Smoke Generator:
Charges: 3
Action Time: 20 s
Smoke screen dispersion time: 85 s
Radius: 450.0 m
Reload Time: 160 s
Slot 3: Engine Boost:
Charges: 4
Action Time: 90 s
Reload Time: 90 s
Boost: +8%
All stats are listed without crew and upgrade modifiers but with best available modules. The stats are subject to change at any time.
Please note! that all information in this post is preliminary. Announced adjustments and features may change multiple times during testing. The final information will be published stated as Released on our WGB website.

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