Grom

13.9

Destroyer | Europe | Tier VII

Tech Tree Position

stock

top

Battle Levels

12345678910

VII

5,700,000

Grom — European Tier VII destroyer.

Grom and Błyskawica entered service in 1937, becoming the strongest European destroyers of their time after the latest French ones. 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 three minutes for the ship to sink.

Grom was first released for sale on DD MMM YYYY.

Modules

	Rate of Fire (shots/min)	180° Turn Time (sec)	Maximum Dispersion (m)	Maximum HE Shell Damage (HP)	Chance of Fire on Target Caused by HE Shell (%)	Maximum AP Shell Damage (HP)		Research price (exp)	Purchase price ()
120 mm/50 wz.36 Bofors on a shielded mount	10	18	89	1,700	8			0	570,000

	Hit Points (HP)	Armor (mm)	Armor (mm)	Main Turrets (pcs.)	Secondary Gun Turrets (pcs.)	AA Mounts (pcs.)	Torpedo Tubes (pcs.)	Hangar Capacity (pcs.)		Research price (exp)	Purchase price ()
Grom (A)	12,900	7	16	1/3		4/2	2			0	855,000
Grom (B)	15,500	7	16	1/3		4/2	2			22,500	1,500,000

	Rate of Fire (shots/min)	Torpedo Tubes Reload Time (sec)	180° Turn Time (sec)	Maximum Damage (HP)	Torpedo Speed (knot)	Torpedo Range (km)		Research price (exp)	Purchase price ()
Mark 10	0.8	75	7.2	7,533	72	7.5		0	570,000

	IDS_SHIP_PARAM_SUO_INCREASE_DIST (%)	Maximum Firing Range (km)		Research price (exp)	Purchase price ()
SUO Mk 7 Mod. 1		0		0	570,000
SUO Mk 7 Mod. 2		0		15,000	1,000,000

	Maximum Speed (knot)		Research price (exp)	Purchase price ()
Propulsion: 54,000 hp	39		0	570,000

Compatible Upgrades

Slot 1
Slot 2
Slot 3
Slot 4

Player Opinion

Performance

Warning: The data presented in the AA Defense sidebar section may be incorrect.
Refer to the in-game Port screens for more useful data.

Tier VII Grom is a sister ship to the premium Blyskawica and shares a similar role, but changes her handling and weapons mean that the two ships feel very different.

The Ship

Befitting her role as a gunboat, Grom has a rather large health pool which enables her to engage in sustained battles. However, it should be noted that there are still several destroyers at her tier with more hit points and higher DPM so racing into a confrontation is not advised. Her base concealment of 7.2 km puts her in the middle of the pack for Tier VII destroyers, she can reduce this to 6.5 km. When she is top tier her concealment is competitive, allowing her to outspot many of the ships which could outgun her. When she is downtiered however, her concealment can often feel lacking against dedicated destroyer hunters. It should be noted that she is not alone in this situation which is common to most Tier VII destroyers.

Grom carries a standard Smoke Generator  which creates a series of smoke clouds which each take 85 seconds to disperse. This has three uses as standard with 160 seconds cooldown between uses. In her second consumable slot, Grom has an Engine Boost  consumable which provides an 8% boost to her top speed for 90 seconds. This is a rather short duration compared to other ships with this consumable, although she gets four charges as standard which partially compensates for this.

Grom has a good top speed of 39 knots placing her among the top few ships at her tier, when her engine boost is activated her straight line speed rises to 42 knots.. This allows her to chase down weaker ships or potentially break contact with more powerful ones. However, she takes a rather long time to accelerate to her top speed and she responds slowly to rudder inputs. Grom can struggle to maneuver, particularly in the short range duels common to destroyer fights.

Armament

Grom has a main battery of seven 120 mm guns in four turrets, three twin mounts and a single mount. These weapons can only fire HE shells which can limit their effectiveness, particularly against cruisers. The small gun caliber means her DPM output is rather uninspiring, placing her below most other gunboat destroyers. She is an adequate fire starting ship, but the short range of her main battery limits her ability to engage larger targets without putting herself in danger. In ideal circumstances she can expect to set 5-6 fires per minute.

Grom’s torpedoes can best be described as better than nothing. She mounts two triple torpedo launchers on her centreline with rather restricted launch angles. Although they reload quickly, they have the striking power of soggy bread. They have the same damage as the weapons carried by Skone and Stord ‘43, but without the range that those ships have. They can just about be launched from stealth, but trying to position for an attack will feel like a waste of effort for the woeful results that are obtained.

Anti-Aircraft

In common with most destroyers, Grom lacks the weapons to truly defend herself against air attack. Her AA guns can reach out as far as 3.5 km, although players are advised to turn off her guns unless she is detected.

Anti-Submarine

Grom drops a pattern of ten depth charges from her stern. However, her depth charges deal just 2400 damage for a direct hit. Multiple depth charges will be needed to sink a submarine, even with direct hits. To add to this challenge, Grom does not have a Hydroacoustic Search, so tracking submarines can be difficult.

Battle Performance

Grom occupies a somewhat unusual position, she has the detection and health pool of a gunboat destroyer, but her main battery damage is throttled by the small caliber and HE only limitation of her shells. When facing larger ships, she relies on her smokescreen or island cover to safely engage, but as she lacks a Hydroacoustic Search she is at serious risk of being torpedoed in her own smoke. If players are able to take advantage of her speed and health to bully other destroyers and avoid incoming fire, Grom can be quite a thorn in the side.

Pros:

Decent health pool
Fast straight line speed
Torpedoes can be launched from stealth

Cons:

Only has HE shells
Middling DPM from main battery
Terrible torpedo armament

Research

Researchable upgrades for Grom:

Hull: Upgrade to Hull (B) for improved survivability, maneuverability and AA. Research of this module unlocks progression to Split.
Gun Fire Control System: Upgrade to SUO Mk 7 Mod. 2 for an extra 10% range on the main battery.

Optimal Configuration

Upgrades

The recommended upgrades are:

Slot 1: Main Armaments Modification 1
Slot 2: Engine Room Protection
Slot 3: Aiming Systems Modification 1
Slot 4: Propulsion Modification 1 -or- Steering Gears Modification 1

Commander Skills

Recommended Commander Skills
Cost (points)	Attack				Defense
1	Grease the Gears +15% main battery traverse speed. ★	Liquidator +30% chance (multiplicative) of causing flooding.	Consumables Specialist −7.5% cooldown time of all Consumables except: Damage Control Party , Repair Party .	Gun Feeder -40% time to switch shell type.	Incoming Fire Alert Receive a warning about a salvo fired at your ship from more than 4.5 km.	Preventive Maintenance −30% chance of main armament, engines, steering becoming incapacitated +15% to HP of secondary and AA guns. ★★★
2	Demolition Expert +1% chance of main and secondary HE shells causing a fire. +15% to the damage-inflicting area of HE shells fired at submarines. ★★	Swift Fish +5% torpedo speed.	Consumables Enhancements +10% action time of: Hydroacoustic Search , Surveillance Radar , Smoke Generator , & Engine Boost .	Extra-Heavy Ammunition +7.5% main battery AP shell damage. +10% damage from depth charges.	Priority Target The detection indicator will show the number of enemies aiming at you with main battery.	Last Stand The ship remains able to move and maneuver - slowly - while the engine or steering gears are incapacitated. ★★★
3	Main Battery & AA Specialist -5% main battery reload time. +10% continuous AA damage.	Fill the Tubes -10% torpedo tubes reload time.	Adrenaline Rush -0.2% reload time of all armaments per 1% HP lost +0.2% AA continuous damage per 1% HP lost. ★★	Inertial Fuse for HE Shells +25% armor penetration of HE shells Base fire chance reduced by half.	Superintendent +1 charge to all consumables.	Survivability Expert +350 HP per ship tier. ★★★
4	Main Battery & AA Expert +20% main battery range. +15% flak damage. ★★★	Swift in Silence So long as the ship remains undetected: +8% ship speed +5% main battery reload time.	Radio Location Shows the direction to the nearest enemy ship. The enemy is alerted that a bearing has been taken.. ★	Fearless Brawler +1 flak burst per salvo. -10% main battery reload when ship is spotted.	Concealment Expert -10% detectability range of the ship. ★★★	Dazzle For 15 seconds after you are detected: * +20% dispersion of enemy shells fired at you. * +8% ship speed.
Key: ★★★ - Extremely Useful ★★ - Frequently Useful ★ - Occasionally Useful No stars - Not Useful

Consumables

Grom equips the following consumables:

Slot 1: Damage Control Party 
Slot 2: Smoke Generator  – 3 charges
Slot 3: Engine Boost  – 4 charges

Signals

Recommended Signal Flags
Combat
Juliet Charlie -100% to the risk of magazine detonation. ★★★	Juliet Yankee Bissotwo -20% to flooding duration.	India Yankee -20% to fire duration.	Hotel Yankee -20% to damage received when ramming the enemy. +50% to damage dealt when ramming the enemy.	Victor Lima +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +4% chance of torpedoes causing flooding. ★★	India X-Ray +1% chance for HE bombs and shells with a caliber above 160mm causing a fire. +0.5% chance for bombs and smaller shells causing a fire. +5% to the risk of your ship's magazine detonating. ★★
Juliet Whiskey Unaone +15% chance of causing flooding. +5% to the risk of your ship's magazine detonating. ★★	Mike Yankee Soxisix +5% to secondary battery maximum firing range. -5% to maximum dispersion of secondary battery shells. -5% to secondary battery loading time.	November Echo Setteseven +5% continuous AA damage at all ranges. +5% damage from flak bursts.	Sierra Mike +5% to the ship's maximum speed. ★★★	November Foxtrot -5% reload time on all consumables.	India Delta +20% to the amount of HP recovered when Repair Party  is used.
X-Ray Papa Unaone +10% action time of a Smoke Generator . ★★	Sierra Bravo +10% action time of Hydroacoustic Search  -10% reload time of Defensive AA Fire .

Note: Use of the Juliet Charlie signal makes detonation impossible.

Gallery

References

Ships of Europe

Destroyers	II Tátra • III Romulus • IV Klas Horn • V Visby • V Muavenet • VI Västerås • VI Stord • VII Skåne • VII Grom • VII Błyskawica • VII Stord '43 • VIII Öland • VIII Split • VIII Orkan • IX Östergötland • IX Lambros Katsonis • IX Velos • IX Friesland • IX Jäger • X Halland • X Gdańsk • X Småland • X Ragnar • X Södermanland • ★ Dalarna
Cruisers	I Gryf • VI Elli • X Svea
Battleships	V Viribus Unitis • IX Karl XIV Johan
Aircraft Carriers

Destroyers

Netherlands	IX Groningen • X Tromp
U.S.A.	II Sampson • II Smith • III Wickes • IV Clemson • V Nicholas • V Hill • VI Farragut • VI Monaghan • VII Mahan • VII Sims • VII Sims B • VIII Benson • VIII Kidd • IX Fletcher • IX Benham • IX Halford • IX Black B • IX Black • IX Johnston • IX Frank Friday • X Gearing • X Somers • X Forrest Sherman • X [[Ship:[Gearing]\|[Gearing]]] • ★ Joshua Humphreys
Europe	II Tátra • III Romulus • IV Klas Horn • V Visby • V Muavenet • VI Västerås • VI Stord • VII Skåne • VII Grom • VII Błyskawica • VII Stord '43 • VIII Öland • VIII Split • VIII Orkan • IX Östergötland • IX Lambros Katsonis • IX Velos • IX Friesland • IX Jäger • X Halland • X Gdańsk • X Småland • X Ragnar • X Södermanland • ★ Dalarna
Germany	II V-25 • III G-101 • IV V-170 • V T-22 • VI Ernst Gaede • VI T-61 • VI Karl von Schönberg • VII Leberecht Maass • VII Z-31 • VII Z-39 • VII Z-32 • VII Z-33 • VII Z-34 • VII Z-38 • VIII Z-23 • VIII Gustav-Julius Maerker • VIII Z-35 • IX Z-46 • IX Felix Schultz • IX Z-44 • IX ZF-6 • X Z-52 • X Elbing • X Z-42 • X Georg Hoffmann • X Lübeck
U.S.S.R.	II Storozhevoi • III Derzki • IV Izyaslav • V Gremyashchy • V [[Ship:Gnevny (< 06.03.2017)\|Gnevny (< 06.03.2017)]] • V Podvoisky • V Okhotnik • VI [[Ship:Ognevoi (< 06.03.2017)\|Ognevoi (< 06.03.2017)]] • VI Gnevny • VII [[Ship:Kiev (< 06.03.2017)\|Kiev (< 06.03.2017)]] • VII Minsk • VII Leningrad • VII Tashkent '39 • VIII [[Ship:Tashkent (< 06.03.2017)\|Tashkent (< 06.03.2017)]] • VIII Ognevoi • VIII Kiev • IX Udaloi • IX Tashkent • IX Neustrashimy • X Khabarovsk • X Grozovoi • X Delny • X [[Ship:[Grozovoi]\|[Grozovoi]]] • ★ Zorkiy
Italy	II Curtatone • III Nazario Sauro • IV Turbine • V Maestrale • VI Aviere • VI Leone • VII Luca Tarigo • VII FR25 • VIII Vittorio Cuniberti • IX Adriatico • IX Paolo Emilio • X Attilio Regolo
Pan-America	VI Juruá • X La Pampa
Japan	II Tachibana • II Umikaze • II Tachibana Lima • III Wakatake • IV Isokaze • V Minekaze • V Fūjin • V Kamikaze • V Kamikaze R • V Mutsuki • VI [[Ship:Mutsuki (< 01.12.2016)\|Mutsuki (< 01.12.2016)]] • VI Fubuki • VI Hatsuharu • VI Shinonome B • VI Shinonome • VII [[Ship:Hatsuharu (< 01.12.2016)\|Hatsuharu (< 01.12.2016)]] • VII Akatsuki • VII Shiratsuyu • VII Yūdachi • VIII [[Ship:Fubuki (< 01.12.2016)\|Fubuki (< 01.12.2016)]] • VIII Akizuki • VIII Kagerō • VIII Asashio • VIII HSF Harekaze II • VIII Asashio B • VIII HSF Harekaze • VIII AL Yukikaze • IX [[Ship:Kagerō (< 01.12.2016)\|Kagerō (< 01.12.2016)]] • IX Yūgumo • IX Kitakaze • IX Minegumo • IX STAR Kitakaze • X Shimakaze • X Harugumo • X Hayate • X AL Shimakaze • X [[Ship:[Shimakaze]\|[Shimakaze]]] • ★ Yamagiri
U.K.	II Medea • III Valkyrie • III Campbeltown • IV Wakeful • V Acasta • VI Icarus • VI Gallant • VII Jervis • VII Jupiter '42 • VIII Lightning • VIII Cossack • VIII Cossack B • IX Jutland • IX Somme • X Daring • X Druid
France	II Enseigne Gabolde • III Fusilier • IV Bourrasque • V L'Adroit • V Jaguar • V Siroco • VI Duchaffault • VI Guépard • VI Aigle • VII Le Hardi • VII Vauquelin • VIII L'Aventurier • VIII Le Fantasque • VIII Le Terrible • IX Orage • IX Mogador • X Cassard • X Kléber • X Marceau • X Kléber CLR
Pan-Asia	II Longjiang • III Phra Ruang • IV Shenyang • V Jianwei • VI Fushun • VI Anshan • VII Gadjah Mada • VIII Hsienyang • VIII Siliwangi • VIII Loyang • VIII Fenyang • VIII Loyang B • VIII Zhu Que • VIII Ship Smasha • IX Chung Mu • X Yueyang • X Lüshun • ★ Kunming
Spain	X Álvaro de Bazán
Commonwealth	III Vampire • VII Haida • VII Huron • X Vampire II

Games

Navigation

Tools

Grom

Modules

Compatible Upgrades