305 mm/50 Mk7

Arkansas

Mk4 mod. 1

Propulsion: 28,000 hp

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  Main Armaments Modification 1
  Increases survivability and accelerates repairs of the main battery and torpedo tubes
  Risk of main battery becoming incapacitated	-20 %
  Main battery survivability	+50 %
  Main battery repair time	-20 %
  Risk of torpedo tubes becoming incapacitated	-20 %
  Torpedo tubes survivability	+50 %
  Torpedo tubes repair time	-20 %

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  Auxiliary Armaments Modification 1
  Increases survivability of the secondary battery and AA mounts
  AA mount survivability	+100 %
  Secondary battery survivability	+100 %

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  Magazine Modification 1
  Reduces the risk of magazine detonation
  Risk of your ship's magazine detonating	-70 %

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  Damage Control Party Modification 1
  Increases the action time of the Damage Control Party consumable. Available on Tier VI–X ships.
  Action time of the consumable	+40 %

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  Damage Control System Modification 1
  Reduces the risk of fire and flooding
  Risk of catching fire	-5 %
  Risk of flooding	-3 %

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  Propulsion Modification 1
  Increases survivability and accelerates repairs of the engine
  Risk of engine becoming incapacitated	-20 %
  Engine repair time	-20 %

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  Steering Gears Modification 1
  Increases survivability and accelerates repairs of the steering gears
  Risk of steering gears becoming incapacitated	-20 %
  Steering gears repair time	-20 %

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  Main Battery Modification 2
  Increases the traverse speed of the main turrets
  Main battery traverse speed	+15 %
  Main battery reload time	+5 %

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  Secondary Battery Modification 1
  Extends firing range and increases firing accuracy of the secondary battery
  Maximum dispersion of secondary battery shells	-20 %
  Secondary battery firing range	+20 %

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  Artillery Plotting Room Modification 1
  Extends the firing range of the main battery and secondary battery
  Main battery firing range	+16 %
  Maximum dispersion of secondary battery shells	-5 %
  Secondary battery firing range	+5 %

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  Damage Control System Modification 2
  Accelerates fire extinguishing and recovery from flooding
  Fire extinguishing time	-15 %
  Flooding recovery time	-15 %

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  Propulsion Modification 2
  Reduces time to full speed
  Time taken to reach full power when accelerating	-50 %

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  Steering Gears Modification 2
  Reduces rudder shift time
  Rudder shift time	-20 %

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  Target Acquisition System Modification 1
  Increases maximum acquisition range
  Spotting range	+20 %
  Acquisition range of torpedoes	+20 %
  Range of assured acquisition of enemy ships	+50 %

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  Concealment System Modification 1
  Reduces the detectability range of the ship and aircraft carrier's squadrons
  Dispersion of shells fired by the enemy attacking your ship	+5 %
  Detectability range of aircraft carrier's squadrons	-10 %
  Ship's detectability range	-10 %

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  Main Battery Modification 3
  Decreases main battery reload time
  Main battery traverse speed	-13 %
  Main battery reload time	-12 %

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  Secondary Battery Modification 2
  Decreases secondary battery reload time
  Secondary battery reload time	-20 %

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  Artillery Plotting Room Modification 2
  Increases the firing accuracy of the main battery
  Maximum dispersion of main battery shells	-11 %

Priority Target   The detection indicator will show the number of opponents currently aiming at your ship with their main battery guns. For an aircraft carrier's squadrons, the detection indicator will show the number of ships whose AA defenses are currently firing at your planes.	Preventive Maintenance   Reduces the risk of main turrets, torpedo tubes, steering gears, and engine becoming incapacitated. Risk of modules becoming incapacitated -30 %	Expert Loader   Reduces the time taken to switch shell type if all main battery guns are loaded. Time taken to switch shell type -75 %	Air Supremacy   Accelerates aircraft servicing. Aircraft restoration time -5 %	Direction Center for Fighters   When the Fighter consumable is activated, an additional aircraft is launched. Number of aircraft +1	Improved Engine Boost   Increases the engine boost time for the aircraft carrier's squadrons. Engine boost time +10 %	Incoming Fire Alert   A warning about a salvo fired at your ship from a distance of more than 4.5 km.	Last Gasp   Completely restores the engine boost for the last attack flight of the aircraft carrier's planes.
High Alert   Reduces reload time of Damage Control Party. Reload time of consumables -10 %	Jack of All Trades   Reduces the reload time of all consumables for the ship and squadrons. Reload time of consumables -5 %	Expert Marksman   Increases the traverse speed of main battery guns. Traverse speed of guns with a caliber above 139 mm +1 ° Traverse speed of guns with a caliber up to and including 139 mm +3 °	Torpedo Acceleration   Increases the speed of torpedoes launched from both ships and aircraft by reducing torpedo range. Ship torpedo range -20 % Ship torpedo speed +5 kts Aerial torpedo range -20 % Aerial torpedo speed +5 kts	Smoke Screen Expert   Expands the smoke screen area. Radius of the smoke screen +20 %	Improved Engines   Increases the speed of the aircraft carrier's squadrons. Squadron speed +2.5 %	Adrenaline Rush   Increases the reload speed of all armaments as the ship's HP decreases. Increases the speed of the aircraft carrier's squadrons as the aircraft's HP decreases. Reload time reduction for all types of armament for each 1% of HP lost 0.2 % Squadron speed increase for each 1% of HP lost 0.2 %	Last Stand   When the engine or steering gears are incapacitated, they continue to operate but with a penalty.
Basics of Survivability   Accelerates repairs to modules, firefighting, and recovery from flooding. Time of repair, fire extinguishing, and recovery from flooding -15 %	Survivability Expert   Increases HP of the ship and aircraft, including fighters. HP for each ship tier +350 Aircraft HP for each ship tier +25	Torpedo Armament Expertise   Reduces the reload time of torpedo tubes. Torpedo tubes reload time -10 %	Aircraft Armor   Decreases the continuous damage that aircraft take from short-, medium-, and long-range AA defenses. Continuous damage from short-, medium-, and long-range AA defenses -10 %	Basic Firing Training   Improves the effectiveness of main guns with a caliber up to and including 139 mm, secondary battery guns, and AA mounts. Reload time of main battery guns with a caliber up to and including 139 mm, and secondary battery guns -10 % Continuous damage by short-, medium-, and long-range AA mounts +10 %	Superintendent   Increases the capacity of your ship's consumables. Does not apply to the consumables of an aircraft carrier's squadrons. Number of consumables +1	Demolition Expert   Increases the chances of setting fire to the target for the armament carried by ships and aircraft. Chance of HE shells causing a fire on target +2 % Chance of HE bombs causing a fire on target +5 % Chance of rockets causing a fire on target +1 %	Vigilance   Extends the torpedo acquisition range, even while the "Hydroacoustic Search" consumable is active. Does not apply to an aircraft carrier's squadrons. Torpedo acquisition range by sea +25 %
Manual Fire Control for Secondary Armament   Secondary guns only fire at targets designated by the player. The firing efficiency is significantly increased. Maximum dispersion of shells for the secondary armament of Tier VII–X ships -60 % Maximum dispersion of shells for the secondary armament of Tier I–VI ships -15 %	Fire Prevention   Reduces the risk of fire. The maximum number of fires on a ship is reduced to three. Risk of catching fire -10 %	Inertia Fuse for HE Shells   Improves the armor penetration capacity of HE shells fired from both main and secondary battery guns. Decreases the chance of setting an enemy ship on fire. Chances of a fire being caused by HE shells with a caliber above 139 mm -3 % Chances of a fire being caused by HE shells with a caliber up to and including 139 mm -1 % Armor penetration capacity of HE shells with a caliber exceeding 139 mm +30 % Armor penetration capacity of HE shells with a caliber up to and including 139 mm +30 %	Sight Stabilization   Improves the aiming time of the aircraft carrier's planes.	Advanced Firing Training   Extends the firing range of main guns with a caliber up to and including 139 mm, as well as the secondary battery guns. Increases the efficiency of long-range AA mounts. Firing range of main battery guns with a caliber up to and including 139 mm, and secondary battery guns +20 % Damage per second within the explosion radius of shells fired from long-range AA defenses +15 %	Massive AA Fire   Activation of a priority sector increases the amount of instantaneous damage dealt. The priority sector does not increase the continuous damage of AA mounts. The priority sector preparation time increases. Priority AA sector preparation time +50 % Instantaneous Damage +100 %	Radio Location   Shows the direction to the nearest enemy ship. The enemy player will be alerted that a bearing was taken on their ship. Not working on aircraft carriers.	Concealment Expert   Reduces the detectability range of the ship and the aircraft carrier's squadrons. Detectability of aircraft carriers -10 % Detectability of battleships -10 % Detectability of cruisers -10 % Detectability of destroyers -10 % Detectability of squadrons -10 %
Priority Target   The detection indicator will show the number of opponents currently aiming at your ship with their main battery guns. For an aircraft carrier's squadrons, the detection indicator will show the number of ships whose AA defenses are currently firing at your planes.	Preventive Maintenance   Reduces the risk of main turrets, torpedo tubes, steering gears, and engine becoming incapacitated. Risk of modules becoming incapacitated -30 %	Expert Loader   Reduces the time taken to switch shell type if all main battery guns are loaded. Time taken to switch shell type -75 %	Air Supremacy   Accelerates aircraft servicing. Aircraft restoration time -5 %	Direction Center for Fighters   When the Fighter consumable is activated, an additional aircraft is launched. Number of aircraft +1	Improved Engine Boost   Increases the engine boost time for the aircraft carrier's squadrons. Engine boost time +10 %	Incoming Fire Alert   A warning about a salvo fired at your ship from a distance of more than 4.5 km.	Last Gasp   Completely restores the engine boost for the last attack flight of the aircraft carrier's planes.
High Alert   Reduces reload time of Damage Control Party. Reload time of consumables -10 %	Jack of All Trades   Reduces the reload time of all consumables for the ship and squadrons. Reload time of consumables -5 %	Expert Marksman   Increases the traverse speed of main battery guns. Traverse speed of guns with a caliber above 139 mm +1 ° Traverse speed of guns with a caliber up to and including 139 mm +3 °	Torpedo Acceleration   Increases the speed of torpedoes launched from both ships and aircraft by reducing torpedo range. Ship torpedo range -20 % Ship torpedo speed +5 kts Aerial torpedo range -20 % Aerial torpedo speed +5 kts	Smoke Screen Expert   Expands the smoke screen area. Radius of the smoke screen +20 %	Improved Engines   Increases the speed of the aircraft carrier's squadrons. Squadron speed +2.5 %	Adrenaline Rush   Increases the reload speed of all armaments as the ship's HP decreases. Increases the speed of the aircraft carrier's squadrons as the aircraft's HP decreases. Reload time reduction for all types of armament for each 1% of HP lost 0.2 % Squadron speed increase for each 1% of HP lost 0.2 %	Last Stand   When the engine or steering gears are incapacitated, they continue to operate but with a penalty.
Basics of Survivability   Accelerates repairs to modules, firefighting, and recovery from flooding. Time of repair, fire extinguishing, and recovery from flooding -15 %	Survivability Expert   Increases HP of the ship and aircraft, including fighters. HP for each ship tier +350 Aircraft HP for each ship tier +25	Torpedo Armament Expertise   Reduces the reload time of torpedo tubes. Torpedo tubes reload time -10 %	Aircraft Armor   Decreases the continuous damage that aircraft take from short-, medium-, and long-range AA defenses. Continuous damage from short-, medium-, and long-range AA defenses -10 %	Basic Firing Training   Improves the effectiveness of main guns with a caliber up to and including 139 mm, secondary battery guns, and AA mounts. Reload time of main battery guns with a caliber up to and including 139 mm, and secondary battery guns -10 % Continuous damage by short-, medium-, and long-range AA mounts +10 %	Superintendent   Increases the capacity of your ship's consumables. Does not apply to the consumables of an aircraft carrier's squadrons. Number of consumables +1	Demolition Expert   Increases the chances of setting fire to the target for the armament carried by ships and aircraft. Chance of HE shells causing a fire on target +2 % Chance of HE bombs causing a fire on target +5 % Chance of rockets causing a fire on target +1 %	Vigilance   Extends the torpedo acquisition range, even while the "Hydroacoustic Search" consumable is active. Does not apply to an aircraft carrier's squadrons. Torpedo acquisition range by sea +25 %
Manual Fire Control for Secondary Armament   Secondary guns only fire at targets designated by the player. The firing efficiency is significantly increased. Maximum dispersion of shells for the secondary armament of Tier VII–X ships -60 % Maximum dispersion of shells for the secondary armament of Tier I–VI ships -15 %	Fire Prevention   Reduces the risk of fire. The maximum number of fires on a ship is reduced to three. Risk of catching fire -10 %	Inertia Fuse for HE Shells   Improves the armor penetration capacity of HE shells fired from both main and secondary battery guns. Decreases the chance of setting an enemy ship on fire. Chances of a fire being caused by HE shells with a caliber above 139 mm -3 % Chances of a fire being caused by HE shells with a caliber up to and including 139 mm -1 % Armor penetration capacity of HE shells with a caliber exceeding 139 mm +30 % Armor penetration capacity of HE shells with a caliber up to and including 139 mm +30 %	Sight Stabilization   Improves the aiming time of the aircraft carrier's planes.	Advanced Firing Training   Extends the firing range of main guns with a caliber up to and including 139 mm, as well as the secondary battery guns. Increases the efficiency of long-range AA mounts. Firing range of main battery guns with a caliber up to and including 139 mm, and secondary battery guns +20 % Damage per second within the explosion radius of shells fired from long-range AA defenses +15 %	Massive AA Fire   Activation of a priority sector increases the amount of instantaneous damage dealt. The priority sector does not increase the continuous damage of AA mounts. The priority sector preparation time increases. Priority AA sector preparation time +50 % Instantaneous Damage +100 %	Radio Location   Shows the direction to the nearest enemy ship. The enemy player will be alerted that a bearing was taken on their ship. Not working on aircraft carriers.	Concealment Expert   Reduces the detectability range of the ship and the aircraft carrier's squadrons. Detectability of aircraft carriers -10 % Detectability of battleships -10 % Detectability of cruisers -10 % Detectability of destroyers -10 % Detectability of squadrons -10 %
Priority Target   The detection indicator will show the number of opponents currently aiming at your ship with their main battery guns. For an aircraft carrier's squadrons, the detection indicator will show the number of ships whose AA defenses are currently firing at your planes.	Preventive Maintenance   Reduces the risk of main turrets, torpedo tubes, steering gears, and engine becoming incapacitated. Risk of modules becoming incapacitated -30 %	Expert Loader   Reduces the time taken to switch shell type if all main battery guns are loaded. Time taken to switch shell type -75 %	Air Supremacy   Accelerates aircraft servicing. Aircraft restoration time -5 %	Direction Center for Fighters   When the Fighter consumable is activated, an additional aircraft is launched. Number of aircraft +1	Improved Engine Boost   Increases the engine boost time for the aircraft carrier's squadrons. Engine boost time +10 %	Incoming Fire Alert   A warning about a salvo fired at your ship from a distance of more than 4.5 km.	Last Gasp   Completely restores the engine boost for the last attack flight of the aircraft carrier's planes.
High Alert   Reduces reload time of Damage Control Party. Reload time of consumables -10 %	Jack of All Trades   Reduces the reload time of all consumables for the ship and squadrons. Reload time of consumables -5 %	Expert Marksman   Increases the traverse speed of main battery guns. Traverse speed of guns with a caliber above 139 mm +1 ° Traverse speed of guns with a caliber up to and including 139 mm +3 °	Torpedo Acceleration   Increases the speed of torpedoes launched from both ships and aircraft by reducing torpedo range. Ship torpedo range -20 % Ship torpedo speed +5 kts Aerial torpedo range -20 % Aerial torpedo speed +5 kts	Smoke Screen Expert   Expands the smoke screen area. Radius of the smoke screen +20 %	Improved Engines   Increases the speed of the aircraft carrier's squadrons. Squadron speed +2.5 %	Adrenaline Rush   Increases the reload speed of all armaments as the ship's HP decreases. Increases the speed of the aircraft carrier's squadrons as the aircraft's HP decreases. Reload time reduction for all types of armament for each 1% of HP lost 0.2 % Squadron speed increase for each 1% of HP lost 0.2 %	Last Stand   When the engine or steering gears are incapacitated, they continue to operate but with a penalty.
Basics of Survivability   Accelerates repairs to modules, firefighting, and recovery from flooding. Time of repair, fire extinguishing, and recovery from flooding -15 %	Survivability Expert   Increases HP of the ship and aircraft, including fighters. HP for each ship tier +350 Aircraft HP for each ship tier +25	Torpedo Armament Expertise   Reduces the reload time of torpedo tubes. Torpedo tubes reload time -10 %	Aircraft Armor   Decreases the continuous damage that aircraft take from short-, medium-, and long-range AA defenses. Continuous damage from short-, medium-, and long-range AA defenses -10 %	Basic Firing Training   Improves the effectiveness of main guns with a caliber up to and including 139 mm, secondary battery guns, and AA mounts. Reload time of main battery guns with a caliber up to and including 139 mm, and secondary battery guns -10 % Continuous damage by short-, medium-, and long-range AA mounts +10 %	Superintendent   Increases the capacity of your ship's consumables. Does not apply to the consumables of an aircraft carrier's squadrons. Number of consumables +1	Demolition Expert   Increases the chances of setting fire to the target for the armament carried by ships and aircraft. Chance of HE shells causing a fire on target +2 % Chance of HE bombs causing a fire on target +5 % Chance of rockets causing a fire on target +1 %	Vigilance   Extends the torpedo acquisition range, even while the "Hydroacoustic Search" consumable is active. Does not apply to an aircraft carrier's squadrons. Torpedo acquisition range by sea +25 %
Manual Fire Control for Secondary Armament   Secondary guns only fire at targets designated by the player. The firing efficiency is significantly increased. Maximum dispersion of shells for the secondary armament of Tier VII–X ships -60 % Maximum dispersion of shells for the secondary armament of Tier I–VI ships -15 %	Fire Prevention   Reduces the risk of fire. The maximum number of fires on a ship is reduced to three. Risk of catching fire -10 %	Inertia Fuse for HE Shells   Improves the armor penetration capacity of HE shells fired from both main and secondary battery guns. Decreases the chance of setting an enemy ship on fire. Chances of a fire being caused by HE shells with a caliber above 139 mm -3 % Chances of a fire being caused by HE shells with a caliber up to and including 139 mm -1 % Armor penetration capacity of HE shells with a caliber exceeding 139 mm +30 % Armor penetration capacity of HE shells with a caliber up to and including 139 mm +30 %	Sight Stabilization   Improves the aiming time of the aircraft carrier's planes.	Advanced Firing Training   Extends the firing range of main guns with a caliber up to and including 139 mm, as well as the secondary battery guns. Increases the efficiency of long-range AA mounts. Firing range of main battery guns with a caliber up to and including 139 mm, and secondary battery guns +20 % Damage per second within the explosion radius of shells fired from long-range AA defenses +15 %	Massive AA Fire   Activation of a priority sector increases the amount of instantaneous damage dealt. The priority sector does not increase the continuous damage of AA mounts. The priority sector preparation time increases. Priority AA sector preparation time +50 % Instantaneous Damage +100 %	Radio Location   Shows the direction to the nearest enemy ship. The enemy player will be alerted that a bearing was taken on their ship. Not working on aircraft carriers.	Concealment Expert   Reduces the detectability range of the ship and the aircraft carrier's squadrons. Detectability of aircraft carriers -10 % Detectability of battleships -10 % Detectability of cruisers -10 % Detectability of destroyers -10 % Detectability of squadrons -10 %
Priority Target   The detection indicator will show the number of opponents currently aiming at your ship with their main battery guns. For an aircraft carrier's squadrons, the detection indicator will show the number of ships whose AA defenses are currently firing at your planes.	Preventive Maintenance   Reduces the risk of main turrets, torpedo tubes, steering gears, and engine becoming incapacitated. Risk of modules becoming incapacitated -30 %	Expert Loader   Reduces the time taken to switch shell type if all main battery guns are loaded. Time taken to switch shell type -50 %	Air Supremacy   Accelerates aircraft servicing. Aircraft restoration time -5 %	Direction Center for Fighters   When the Fighter consumable is activated, an additional aircraft is launched. Number of aircraft +1	Improved Engine Boost   Increases the engine boost time for the aircraft carrier's squadrons. Engine boost time +10 %	Incoming Fire Alert   A warning about a salvo fired at your ship from a distance of more than 4.5 km.	Last Gasp   Completely restores the engine boost for the last attack flight of the aircraft carrier's planes.
High Alert   Reduces reload time of Damage Control Party. Reload time of consumables -10 %	Jack of All Trades   Reduces the reload time of all consumables for the ship and squadrons. Reload time of consumables -5 %	Expert Marksman   Increases the traverse speed of main battery guns. Traverse speed of guns with a caliber above 139 mm +1 ° Traverse speed of guns with a caliber up to and including 139 mm +3 °	Torpedo Acceleration   Increases the speed of torpedoes launched from both ships and aircraft by reducing torpedo range. Ship torpedo range -20 % Ship torpedo speed +5 kts Aerial torpedo range -20 % Aerial torpedo speed +5 kts	Smoke Screen Expert   Expands the smoke screen area. Radius of the smoke screen +20 %	Improved Engines   Increases the speed of the aircraft carrier's squadrons. Squadron speed +2.5 %	Adrenaline Rush   Increases the reload speed of all armaments as the ship's HP decreases. Increases the speed of the aircraft carrier's squadrons as the aircraft's HP decreases. Reload time reduction for all types of armament for each 1% of HP lost 0.2 % Squadron speed increase for each 1% of HP lost 0.2 %	Last Stand   When the engine or steering gears are incapacitated, they continue to operate but with a penalty.
Basics of Survivability   Accelerates repairs to modules, firefighting, and recovery from flooding. Time of repair, fire extinguishing, and recovery from flooding -15 %	Survivability Expert   Increases HP of the ship and aircraft, including fighters. HP for each ship tier +400 Aircraft HP for each ship tier +30	Torpedo Armament Expertise   Reduces the reload time of torpedo tubes. Torpedo tubes reload time -10 %	Aircraft Armor   Decreases the continuous damage that aircraft take from short-, medium-, and long-range AA defenses. Continuous damage from short-, medium-, and long-range AA defenses -10 %	Basic Firing Training   Improves the effectiveness of main guns with a caliber up to and including 139 mm, secondary battery guns, and AA mounts. Reload time of main battery guns with a caliber up to and including 139 mm, and secondary battery guns -10 % Continuous damage by short-, medium-, and long-range AA mounts +10 %	Superintendent   Increases the capacity of your ship's consumables. Does not apply to the consumables of an aircraft carrier's squadrons. Number of consumables +1	Demolition Expert   Increases the chances of setting fire to the target for the armament carried by ships and aircraft. Chance of HE shells causing a fire on target +2 % Chance of HE bombs causing a fire on target +5 % Chance of rockets causing a fire on target +1 %	Vigilance   Extends the torpedo acquisition range, even while the "Hydroacoustic Search" consumable is active. Does not apply to an aircraft carrier's squadrons. Torpedo acquisition range by sea +25 %
Manual Fire Control for Secondary Armament   Secondary guns only fire at targets designated by the player. The firing efficiency is significantly increased. Maximum dispersion of shells for the secondary armament of Tier VII–X ships -60 % Maximum dispersion of shells for the secondary armament of Tier I–VI ships -15 %	Fire Prevention   Reduces the risk of fire. The maximum number of fires on a ship is reduced to three. Risk of catching fire -10 %	Inertia Fuse for HE Shells   Improves the armor penetration capacity of HE shells fired from both main and secondary battery guns. Decreases the chance of setting an enemy ship on fire. Chances of a fire being caused by HE shells with a caliber above 139 mm -3 % Chances of a fire being caused by HE shells with a caliber up to and including 139 mm -1 % Armor penetration capacity of HE shells with a caliber exceeding 139 mm +30 % Armor penetration capacity of HE shells with a caliber up to and including 139 mm +30 %	Sight Stabilization   Improves the aiming time of the aircraft carrier's planes.	Advanced Firing Training   Extends the firing range of main guns with a caliber up to and including 139 mm, as well as the secondary battery guns. Increases the efficiency of long-range AA mounts. Firing range of main battery guns with a caliber up to and including 139 mm, and secondary battery guns +20 % Damage per second within the explosion radius of shells fired from long-range AA defenses +15 %	Massive AA Fire   Activation of a priority sector increases the amount of instantaneous damage dealt. The priority sector does not increase the continuous damage of AA mounts. The priority sector preparation time increases. Priority AA sector preparation time +50 % Instantaneous Damage +100 %	Radio Location   Shows the direction to the nearest enemy ship. The enemy player will be alerted that a bearing was taken on their ship. Not working on aircraft carriers.	Concealment Expert   Reduces the detectability range of the ship and the aircraft carrier's squadrons. Detectability of aircraft carriers -10 % Detectability of battleships -10 % Detectability of cruisers -10 % Detectability of destroyers -10 % Detectability of squadrons -10 %
Priority Target   The detection indicator will show the number of opponents currently aiming at your ship with their main battery guns. For an aircraft carrier's squadrons, the detection indicator will show the number of ships whose AA defenses are currently firing at your planes.	Preventive Maintenance   Reduces the risk of main turrets, torpedo tubes, steering gears, and engine becoming incapacitated. Risk of modules becoming incapacitated -30 %	Expert Loader   Reduces the time taken to switch shell type if all main battery guns are loaded. Time taken to switch shell type -50 %	Air Supremacy   Accelerates aircraft servicing. Aircraft restoration time -5 %	Direction Center for Fighters   When the Fighter consumable is activated, an additional aircraft is launched. Number of aircraft +1	Improved Engine Boost   Increases the engine boost time for the aircraft carrier's squadrons. Engine boost time +10 %	Incoming Fire Alert   A warning about a salvo fired at your ship from a distance of more than 4.5 km.	Last Gasp   Completely restores the engine boost for the last attack flight of the aircraft carrier's planes.
High Alert   Reduces reload time of Damage Control Party. Reload time of consumables -10 %	Jack of All Trades   Reduces the reload time of all consumables for the ship and squadrons. Reload time of consumables -5 %	Expert Marksman   Increases the traverse speed of main battery guns. Traverse speed of guns with a caliber above 139 mm +1 ° Traverse speed of guns with a caliber up to and including 139 mm +3 °	Torpedo Acceleration   Increases the speed of torpedoes launched from both ships and aircraft by reducing torpedo range. Ship torpedo range -20 % Ship torpedo speed +5 kts Aerial torpedo range -20 % Aerial torpedo speed +5 kts	Smoke Screen Expert   Expands the smoke screen area. Radius of the smoke screen +20 %	Improved Engines   Increases the speed of the aircraft carrier's squadrons. Squadron speed +2.5 %	Adrenaline Rush   Increases the reload speed of all armaments as the ship's HP decreases. Increases the speed of the aircraft carrier's squadrons as the aircraft's HP decreases. Reload time reduction for all types of armament for each 1% of HP lost 0.2 % Squadron speed increase for each 1% of HP lost 0.2 %	Last Stand   When the engine or steering gears are incapacitated, they continue to operate but with a penalty.
Basics of Survivability   Accelerates repairs to modules, firefighting, and recovery from flooding. Time of repair, fire extinguishing, and recovery from flooding -15 %	Survivability Expert   Increases HP of the ship and aircraft, including fighters. HP for each ship tier +400 Aircraft HP for each ship tier +30	Torpedo Armament Expertise   Reduces the reload time of torpedo tubes. Torpedo tubes reload time -10 %	Aircraft Armor   Decreases the continuous damage that aircraft take from short-, medium-, and long-range AA defenses. Continuous damage from short-, medium-, and long-range AA defenses -10 %	Basic Firing Training   Improves the effectiveness of main guns with a caliber up to and including 139 mm, secondary battery guns, and AA mounts. Reload time of main battery guns with a caliber up to and including 139 mm, and secondary battery guns -10 % Continuous damage by short-, medium-, and long-range AA mounts +10 %	Superintendent   Increases the capacity of your ship's consumables. Does not apply to the consumables of an aircraft carrier's squadrons. Number of consumables +1	Demolition Expert   Increases the chances of setting fire to the target for the armament carried by ships and aircraft. Chance of HE shells causing a fire on target +2 % Chance of HE bombs causing a fire on target +5 % Chance of rockets causing a fire on target +1 %	Vigilance   Extends the torpedo acquisition range, even while the "Hydroacoustic Search" consumable is active. Does not apply to an aircraft carrier's squadrons. Torpedo acquisition range by sea +25 %
Manual Fire Control for Secondary Armament   Secondary guns only fire at targets designated by the player. The firing efficiency is significantly increased. Maximum dispersion of shells for the secondary armament of Tier VII–X ships -60 % Maximum dispersion of shells for the secondary armament of Tier I–VI ships -15 %	Fire Prevention   Reduces the risk of fire. The maximum number of fires on a ship is reduced to three. Risk of catching fire -10 %	Inertia Fuse for HE Shells   Improves the armor penetration capacity of HE shells fired from both main and secondary battery guns. Decreases the chance of setting an enemy ship on fire. Chances of a fire being caused by HE shells with a caliber above 139 mm -3 % Chances of a fire being caused by HE shells with a caliber up to and including 139 mm -1 % Armor penetration capacity of HE shells with a caliber exceeding 139 mm +30 % Armor penetration capacity of HE shells with a caliber up to and including 139 mm +30 %	Sight Stabilization   Improves the aiming time of the aircraft carrier's planes.	Advanced Firing Training   Extends the firing range of main guns with a caliber up to and including 139 mm, as well as the secondary battery guns. Increases the efficiency of long-range AA mounts. Firing range of main battery guns with a caliber up to and including 139 mm, and secondary battery guns +20 % Damage per second within the explosion radius of shells fired from long-range AA defenses +15 %	Massive AA Fire   Activation of a priority sector increases the amount of instantaneous damage dealt. The priority sector does not increase the continuous damage of AA mounts. The priority sector preparation time increases. Priority AA sector preparation time +50 % Instantaneous Damage +100 %	Radio Location   Shows the direction to the nearest enemy ship. The enemy player will be alerted that a bearing was taken on their ship. Not working on aircraft carriers.	Concealment Expert   Reduces the detectability range of the ship and the aircraft carrier's squadrons. Detectability of aircraft carriers -10 % Detectability of battleships -10 % Detectability of cruisers -10 % Detectability of destroyers -10 % Detectability of squadrons -10 %
Priority Target   The detection indicator will show the number of opponents currently aiming at your ship with their main battery guns. For an aircraft carrier's squadrons, the detection indicator will show the number of ships whose AA defenses are currently firing at your planes.	Preventive Maintenance   Reduces the risk of main turrets, torpedo tubes, steering gears, and engine becoming incapacitated. Risk of modules becoming incapacitated -30 %	Expert Loader   Reduces the time taken to switch shell type if all main battery guns are loaded. Time taken to switch shell type -50 %	Air Supremacy   Accelerates aircraft servicing. Aircraft restoration time -5 %	Direction Center for Fighters   When the Fighter consumable is activated, an additional aircraft is launched. Number of aircraft +1	Improved Engine Boost   Increases the engine boost time for the aircraft carrier's squadrons. Engine boost time +10 %	Incoming Fire Alert   A warning about a salvo fired at your ship from a distance of more than 4.5 km.	Last Gasp   Completely restores the engine boost for the last attack flight of the aircraft carrier's planes.
High Alert   Reduces reload time of Damage Control Party. Reload time of consumables -10 %	Jack of All Trades   Reduces the reload time of all consumables for the ship and squadrons. Reload time of consumables -5 %	Expert Marksman   Increases the traverse speed of main battery guns. Traverse speed of guns with a caliber above 139 mm +1 ° Traverse speed of guns with a caliber up to and including 139 mm +3 °	Torpedo Acceleration   Increases the speed of torpedoes launched from both ships and aircraft by reducing torpedo range. Ship torpedo range -20 % Ship torpedo speed +5 kts Aerial torpedo range -20 % Aerial torpedo speed +5 kts	Smoke Screen Expert   Expands the smoke screen area. Radius of the smoke screen +20 %	Improved Engines   Increases the speed of the aircraft carrier's squadrons. Squadron speed +2.5 %	Adrenaline Rush   Increases the reload speed of all armaments as the ship's HP decreases. Increases the speed of the aircraft carrier's squadrons as the aircraft's HP decreases. Reload time reduction for all types of armament for each 1% of HP lost 0.2 % Squadron speed increase for each 1% of HP lost 0.2 %	Last Stand   When the engine or steering gears are incapacitated, they continue to operate but with a penalty.
Basics of Survivability   Accelerates repairs to modules, firefighting, and recovery from flooding. Time of repair, fire extinguishing, and recovery from flooding -15 %	Survivability Expert   Increases HP of the ship and aircraft, including fighters. HP for each ship tier +400 Aircraft HP for each ship tier +30	Torpedo Armament Expertise   Reduces the reload time of torpedo tubes. Torpedo tubes reload time -10 %	Aircraft Armor   Decreases the continuous damage that aircraft take from short-, medium-, and long-range AA defenses. Continuous damage from short-, medium-, and long-range AA defenses -10 %	Basic Firing Training   Improves the effectiveness of main guns with a caliber up to and including 139 mm, secondary battery guns, and AA mounts. Reload time of main battery guns with a caliber up to and including 139 mm, and secondary battery guns -10 % Continuous damage by short-, medium-, and long-range AA mounts +10 %	Superintendent   Increases the capacity of your ship's consumables. Does not apply to the consumables of an aircraft carrier's squadrons. Number of consumables +1	Demolition Expert   Increases the chances of setting fire to the target for the armament carried by ships and aircraft. Chance of HE shells causing a fire on target +2 % Chance of HE bombs causing a fire on target +5 % Chance of rockets causing a fire on target +1 %	Vigilance   Extends the torpedo acquisition range, even while the "Hydroacoustic Search" consumable is active. Does not apply to an aircraft carrier's squadrons. Torpedo acquisition range by sea +25 %
Manual Fire Control for Secondary Armament   Secondary guns only fire at targets designated by the player. The firing efficiency is significantly increased. Maximum dispersion of shells for the secondary armament of Tier VII–X ships -60 % Maximum dispersion of shells for the secondary armament of Tier I–VI ships -15 %	Fire Prevention   Reduces the risk of fire. The maximum number of fires on a ship is reduced to three. Risk of catching fire -10 %	Inertia Fuse for HE Shells   Improves the armor penetration capacity of HE shells fired from both main and secondary battery guns. Decreases the chance of setting an enemy ship on fire. Chances of a fire being caused by HE shells with a caliber above 139 mm -3 % Chances of a fire being caused by HE shells with a caliber up to and including 139 mm -1 % Armor penetration capacity of HE shells with a caliber exceeding 139 mm +30 % Armor penetration capacity of HE shells with a caliber up to and including 139 mm +30 %	Sight Stabilization   Improves the aiming time of the aircraft carrier's planes.	Advanced Firing Training   Extends the firing range of main guns with a caliber up to and including 139 mm, as well as the secondary battery guns. Increases the efficiency of long-range AA mounts. Firing range of main battery guns with a caliber up to and including 139 mm, and secondary battery guns +20 % Damage per second within the explosion radius of shells fired from long-range AA defenses +15 %	Massive AA Fire   Activation of a priority sector increases the amount of instantaneous damage dealt. The priority sector does not increase the continuous damage of AA mounts. The priority sector preparation time increases. Priority AA sector preparation time +50 % Instantaneous Damage +100 %	Radio Location   Shows the direction to the nearest enemy ship. The enemy player will be alerted that a bearing was taken on their ship. Not working on aircraft carriers.	Concealment Expert   Reduces the detectability range of the ship and the aircraft carrier's squadrons. Detectability of aircraft carriers -10 % Detectability of battleships -10 % Detectability of cruisers -10 % Detectability of destroyers -10 % Detectability of squadrons -10 %
Priority Target   The detection indicator will show the number of opponents currently aiming at your ship with their main battery guns. For an aircraft carrier's squadrons, the detection indicator will show the number of ships whose AA defenses are currently firing at your planes.	Preventive Maintenance   Reduces the risk of main turrets, torpedo tubes, steering gears, and engine becoming incapacitated. Risk of modules becoming incapacitated -30 %	Expert Loader   Reduces the time taken to switch shell type if all main battery guns are loaded. Time taken to switch shell type -50 %	Air Supremacy   Accelerates aircraft servicing. Aircraft restoration time -5 %	Direction Center for Fighters   When the Fighter consumable is activated, an additional aircraft is launched. Number of aircraft +1	Improved Engine Boost   Increases the engine boost time for the aircraft carrier's squadrons. Engine boost time +10 %	Incoming Fire Alert   A warning about a salvo fired at your ship from a distance of more than 4.5 km.	Last Gasp   Completely restores the engine boost for the last attack flight of the aircraft carrier's planes.
High Alert   Reduces reload time of Damage Control Party. Reload time of consumables -10 %	Jack of All Trades   Reduces the reload time of all consumables for the ship and squadrons. Reload time of consumables -5 %	Expert Marksman   Increases the traverse speed of main battery guns. Traverse speed of guns with a caliber above 139 mm +0.7 ° Traverse speed of guns with a caliber up to and including 139 mm +2.5 °	Torpedo Acceleration   Increases the speed of torpedoes launched from both ships and aircraft by reducing torpedo range. Ship torpedo range -20 % Ship torpedo speed +5 kts Aerial torpedo range -20 % Aerial torpedo speed +5 kts	Smoke Screen Expert   Expands the smoke screen area. Radius of the smoke screen +20 %	Improved Engines   Increases the speed of the aircraft carrier's squadrons. Squadron speed +2.5 %	Adrenaline Rush   Increases the reload speed of all armaments as the ship's HP decreases. Increases the speed of the aircraft carrier's squadrons as the aircraft's HP decreases. Reload time reduction for all types of armament for each 1% of HP lost 0.2 % Squadron speed increase for each 1% of HP lost 0.2 %	Last Stand   When the engine or steering gears are incapacitated, they continue to operate but with a penalty.
Basics of Survivability   Accelerates repairs to modules, firefighting, and recovery from flooding. Time of repair, fire extinguishing, and recovery from flooding -15 %	Survivability Expert   Increases HP of the ship and aircraft, including fighters. HP for each ship tier +350 Aircraft HP for each ship tier +25	Torpedo Armament Expertise   Reduces the reload time of torpedo tubes. Torpedo tubes reload time -10 %	Aircraft Armor   Decreases the continuous damage that aircraft take from short-, medium-, and long-range AA defenses. Continuous damage from short-, medium-, and long-range AA defenses -10 %	Basic Firing Training   Improves the effectiveness of main guns with a caliber up to and including 139 mm, secondary battery guns, and AA mounts. Reload time of main battery guns with a caliber up to and including 139 mm, and secondary battery guns -10 % Continuous damage by short-, medium-, and long-range AA mounts +10 %	Superintendent   Increases the capacity of your ship's consumables. Does not apply to the consumables of an aircraft carrier's squadrons. Number of consumables +1	Demolition Expert   Increases the chances of setting fire to the target for the armament carried by ships and aircraft. Chance of HE shells causing a fire on target +2 % Chance of HE bombs causing a fire on target +5 % Chance of rockets causing a fire on target +1 %	Vigilance   Extends the torpedo acquisition range, even while the "Hydroacoustic Search" consumable is active. Does not apply to an aircraft carrier's squadrons. Torpedo acquisition range by sea +25 %
Manual Fire Control for Secondary Armament   Secondary guns only fire at targets designated by the player. The firing efficiency is significantly increased. Maximum dispersion of shells for the secondary armament of Tier VII–X ships -60 % Maximum dispersion of shells for the secondary armament of Tier I–VI ships -15 %	Fire Prevention   Reduces the risk of fire. The maximum number of fires on a ship is reduced to three. Risk of catching fire -10 %	Inertia Fuse for HE Shells   Improves the armor penetration capacity of HE shells fired from both main and secondary battery guns. Decreases the chance of setting an enemy ship on fire. Chances of a fire being caused by HE shells with a caliber above 139 mm -3 % Chances of a fire being caused by HE shells with a caliber up to and including 139 mm -1 % Armor penetration capacity of HE shells with a caliber exceeding 139 mm +30 % Armor penetration capacity of HE shells with a caliber up to and including 139 mm +30 %	Sight Stabilization   Improves the aiming time of the aircraft carrier's planes.	Advanced Firing Training   Extends the firing range of main guns with a caliber up to and including 139 mm, as well as the secondary battery guns. Increases the efficiency of long-range AA mounts. Firing range of main battery guns with a caliber up to and including 139 mm, and secondary battery guns +20 % Damage per second within the explosion radius of shells fired from long-range AA defenses +15 %	Massive AA Fire   Activation of a priority sector increases the amount of instantaneous damage dealt. The priority sector does not increase the continuous damage of AA mounts. The priority sector preparation time increases. Priority AA sector preparation time +50 % Instantaneous Damage +100 %	Radio Location   Shows the direction to the nearest enemy ship. The enemy player will be alerted that a bearing was taken on their ship. Not working on aircraft carriers.	Concealment Expert   Reduces the detectability range of the ship and the aircraft carrier's squadrons. Detectability of aircraft carriers -10 % Detectability of battleships -10 % Detectability of cruisers -10 % Detectability of destroyers -10 % Detectability of squadrons -10 %
Priority Target   The detection indicator will show the number of opponents currently aiming at your ship with their main battery guns. For an aircraft carrier's squadrons, the detection indicator will show the number of ships whose AA defenses are currently firing at your planes.	Preventive Maintenance   Reduces the risk of main turrets, torpedo tubes, steering gears, and engine becoming incapacitated. Risk of modules becoming incapacitated -30 %	Expert Loader   Reduces the time taken to switch shell type if all main battery guns are loaded. Time taken to switch shell type -50 %	Air Supremacy   Accelerates aircraft servicing. Aircraft restoration time -5 %	Direction Center for Fighters   When the Fighter consumable is activated, an additional aircraft is launched. Number of aircraft +1	Improved Engine Boost   Increases the engine boost time for the aircraft carrier's squadrons. Engine boost time +10 %	Incoming Fire Alert   A warning about a salvo fired at your ship from a distance of more than 4.5 km.	Last Gasp   Completely restores the engine boost for the last attack flight of the aircraft carrier's planes.
High Alert   Reduces reload time of Damage Control Party. Reload time of consumables -10 %	Jack of All Trades   Reduces the reload time of all consumables for the ship and squadrons. Reload time of consumables -5 %	Expert Marksman   Increases the traverse speed of main battery guns. Traverse speed of guns with a caliber above 139 mm +0.7 ° Traverse speed of guns with a caliber up to and including 139 mm +2.5 °	Torpedo Acceleration   Increases the speed of torpedoes launched from both ships and aircraft by reducing torpedo range. Ship torpedo range -20 % Ship torpedo speed +5 kts Aerial torpedo range -20 % Aerial torpedo speed +5 kts	Smoke Screen Expert   Expands the smoke screen area. Radius of the smoke screen +20 %	Improved Engines   Increases the speed of the aircraft carrier's squadrons. Squadron speed +2.5 %	Adrenaline Rush   Increases the reload speed of all armaments as the ship's HP decreases. Increases the speed of the aircraft carrier's squadrons as the aircraft's HP decreases. Reload time reduction for all types of armament for each 1% of HP lost 0.2 % Squadron speed increase for each 1% of HP lost 0.2 %	Last Stand   When the engine or steering gears are incapacitated, they continue to operate but with a penalty.
Basics of Survivability   Accelerates repairs to modules, firefighting, and recovery from flooding. Time of repair, fire extinguishing, and recovery from flooding -15 %	Survivability Expert   Increases HP of the ship and aircraft, including fighters. HP for each ship tier +350 Aircraft HP for each ship tier +25	Torpedo Armament Expertise   Reduces the reload time of torpedo tubes. Torpedo tubes reload time -10 %	Aircraft Armor   Decreases the continuous damage that aircraft take from short-, medium-, and long-range AA defenses. Continuous damage from short-, medium-, and long-range AA defenses -10 %	Basic Firing Training   Improves the effectiveness of main guns with a caliber up to and including 139 mm, secondary battery guns, and AA mounts. Reload time of main battery guns with a caliber up to and including 139 mm, and secondary battery guns -10 % Continuous damage by short-, medium-, and long-range AA mounts +10 %	Superintendent   Increases the capacity of your ship's consumables. Does not apply to the consumables of an aircraft carrier's squadrons. Number of consumables +1	Demolition Expert   Increases the chances of setting fire to the target for the armament carried by ships and aircraft. Chance of HE shells causing a fire on target +2 % Chance of HE bombs causing a fire on target +5 % Chance of rockets causing a fire on target +1 %	Vigilance   Extends the torpedo acquisition range, even while the "Hydroacoustic Search" consumable is active. Does not apply to an aircraft carrier's squadrons. Torpedo acquisition range by sea +25 %
Manual Fire Control for Secondary Armament   Secondary guns only fire at targets designated by the player. The firing efficiency is significantly increased. Maximum dispersion of shells for the secondary armament of Tier VII–X ships -60 % Maximum dispersion of shells for the secondary armament of Tier I–VI ships -15 %	Fire Prevention   Reduces the risk of fire. The maximum number of fires on a ship is reduced to three. Risk of catching fire -10 %	Inertia Fuse for HE Shells   Improves the armor penetration capacity of HE shells fired from both main and secondary battery guns. Decreases the chance of setting an enemy ship on fire. Chances of a fire being caused by HE shells with a caliber above 139 mm -3 % Chances of a fire being caused by HE shells with a caliber up to and including 139 mm -1 % Armor penetration capacity of HE shells with a caliber exceeding 139 mm +30 % Armor penetration capacity of HE shells with a caliber up to and including 139 mm +30 %	Sight Stabilization   Improves the aiming time of the aircraft carrier's planes.	Advanced Firing Training   Extends the firing range of main guns with a caliber up to and including 139 mm, as well as the secondary battery guns. Increases the efficiency of long-range AA mounts. Firing range of main battery guns with a caliber up to and including 139 mm, and secondary battery guns +20 % Damage per second within the explosion radius of shells fired from long-range AA defenses +15 %	Massive AA Fire   Activation of a priority sector increases the amount of instantaneous damage dealt. The priority sector does not increase the continuous damage of AA mounts. The priority sector preparation time increases. Priority AA sector preparation time +50 % Instantaneous Damage +100 %	Radio Location   Shows the direction to the nearest enemy ship. The enemy player will be alerted that a bearing was taken on their ship. Not working on aircraft carriers.	Concealment Expert   Reduces the detectability range of the ship and the aircraft carrier's squadrons. Detectability of aircraft carriers -10 % Detectability of battleships -10 % Detectability of cruisers -10 % Detectability of destroyers -10 % Detectability of squadrons -10 %