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Upgrades

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Players earn access to Upgrades starting at Account Level 6, allowing them to customize and improve each ship's performance to suit their desired play style. Ships of different tiers have access to different upgrades, defined by the tables below. Certain upgrades are unique to certain ship types or nations; check the Notes column for more detail.

Purchasing upgrades

Upgrades may be purchased and mounted for credits. Some packages for purchase, challenge rewards, and mission rewards may also grant upgrades.

Only up to one upgrade may be mounted in each slot. An upgrade may be sold for half of its purchase cost. Alternatively, an upgrade may be demounted for 25 doubloons regardless of its purchase cost. When selling a ship, all upgrades mounted on that ship must either be sold or demounted.

Tier I+ Equipment (Slot 1)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM030_MainWeapon_Mod_I.png

Main Armaments Modification 1

125000Silver_icon.png Increases survivability and accelerates repairs of main battery and torpedo tubes:
  • -20% to the risk of main battery becoming incapacitate.
  • +50% to main battery survivability.
  • -20% to main battery repair time.
  • -20% to the risk of torpedo tubes becoming incapacitated.
  • +50% to torpedo tubes survivability.
  • -20% to torpedo tubes repair time.
Wows_icon_modernization_PCM003_Airplanes_Mod_I.png

Air Groups Modification 1

125000Silver_icon.png Increases effectiveness of aircraft guns:
  • +10% to average damage per second of aircraft guns.
Applicable to Fighter aircraft; useful for aircraft carriers only.
Wows_icon_modernization_PCM031_SecondaryWeapon_Mod_I.png

Auxiliary Armaments Modification 1

125000Silver_icon.png Increases survivability of the secondary battery and AA mounts:
  • +100% to secondary battery survivability.
  • +100% to AA mounts.
Wows_icon_modernization_PCM032_PowderMagazine_Mod_I.png

Magazine Modification 1

125000Silver_icon.png Reduces the risk of magazine denotation:
  • -70% to the risk of your ship's magazine detonation.
Icon_modernization_PCM034_Guidance_Mod_0.png

Aiming Systems Modification 0

125000Silver_icon.png Increases firing accuracy of the secondary battery and main battery, accelerates traverse speed of torpedo tubes and extends firing range of the secondary battery:
  • +20% to main battery traverse speed.
  • -40% to maximum dispersion of main battery shells.
  • +20% to torpedo tubes traverse speed.
  • +20% to secondary battery maximum firing range.
  • -40% to maximum dispersion of secondary battery shells.
Available only to Iwaki Alpha, Yubari,
and Katori.

Tier III+ Equipment (Slot 4)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM020_DamageControl_Mod_I.png

Damage Control System Modification 1

250000Silver_icon.png Reduces the risk of flooding or fire:
  • -3% to the risk of flooding and damage received when torpedoes hit the torpedo protection.
  • -5% to the risk of fire.
Torpedo flooding and damage modifier only applies to ships with a torpedo protection system (viewable under the Survivability tab of the Port screen).
Wows_icon_modernization_PCM021_Engine_Mod_I.png

Propulsion Modification 1

250000Silver_icon.png Increases survivability and accelerates repairs of engine:
  • -20% to the risk of the engine becoming incapacitated.
  • -20% to engine repair time.
Wows_icon_modernization_PCM022_SteeringGear_Mod_I.png

Steering Gears Modification 1

250000Silver_icon.png Increases survivability and accelerates repairs of steering gears:
  • -20% to the steering gears repair time.
  • -20% to the risk of the steering gears becoming incapacitated.

Tier V+ Equipment (Slot 2)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM006_MainGun_Mod_II.png

Main Battery Modification 2

500000Silver_icon.png Increases the traverse speed of the main turrets:
  • +5% to main battery loading time.
  • +15% to main battery traverse speed.
Guns take longer to load in exchange for faster turret traverse. Stacks with Expert Marksman.
Wows_icon_modernization_PCM033_Guidance_Mod_I.png

Aiming Systems Modification 1

500000Silver_icon.png Increases firing accuracy of the secondary battery and main battery, accelerates traverse speed of torpedo tubes and extends firing range of the secondary battery:
  • -7% to maximum dispersion of main battery shells.
  • +20% to torpedo tubes traverse speed.
  • +5% to secondary battery maximum firing range.
  • -5% to maximum dispersion of secondary shells.
American battleships have access to Artillery Plotting Room Modification 1 instead.
Icon_modernization_PCM028_FireControl_Mod_I_US.png

Artillery Plotting Room Modification 1

500000Silver_icon.png
  • +16% to main battery maximum firing range.
  • +5% to secondary battery maximum firing range.
  • -5% to maximum dispersion of secondary battery shells.
Available only to American battleships.
Wows_icon_modernization_PCM009_FlightControl_Mod_I.png

Flight Control Modification 1

500000Silver_icon.png Accelerates aircraft servicing:
  • -10% to aircraft servicing time.
Stacks with Torpedo Armament Expertise. Applicable to aircraft; useful for aircraft carriers only.
Wows_icon_modernization_PCM010_Airplanes_Mod_II.png

Air Groups Modification 2

500000Silver_icon.png Increases fighters HP:
  • +20% to fighter survivability
Applicable to Fighter aircraft; useful for aircraft carriers only.
Icon_modernization_PCM011_AirDefense_Mod_II.png

AA Guns Modification 2

500000Silver_icon.png Extends firing range of AA mounts:
  • +20% to AA mounts maximum firing range.
Stacks with Advanced Firing Training.
Icon_modernization_PCM005_SecondaryGun_Mod_I.png

Secondary Battery Modification 2

500000Silver_icon.png Extends firing range and increases firing accuracy of the secondary battery:
  • +20% to secondary battery maximum firing range.
  • -20% to maximum dispersion of secondary battery shells.
Stacks with Advanced Firing Training.
Wows_icon_modernization_PCM037_SmokeGenerator_Mod_I.png

Smoke Generator Modification 1

N/A Increases Smoke Generator duration:
  • +30% to duration of Smoke Generator.
  • -12% to duration of smoke clouds produced by Smoke Generator.
This modification may only be obtained via the Container system or as a reward from Ranked Battles.
Wows_icon_modernization_PCM038_Spotter_Mod_I.png

Spotting Aircraft Modification 1

N/A Increases Spotting Aircraft duration: This modification may only be obtained via the Container system or as a reward from Ranked Battles.
Wows_icon_modernization_PCM040_AirDefenseDisp_Mod_I.png

Defensive AA Fire Modification 1

N/A Increases Defensive AA Fire duration: This modification may only be obtained via the Container system or as a reward from Ranked Battles.
Wows_icon_modernization_PCM041_SonarSearch_Mod_I.png

Hydroacoustic Search Modification 1

N/A Increases Hydroacoustic Search duration: This modification may only be obtained via the Container system or as a reward from Ranked Battles.

Tier VI+ Equipment (Slot 5)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM023_DamageControl_Mod_II.png

Damage Control System Modification 2

1000000Silver_icon.png Accelerates fire extinguishing and recovery from flooding:
  • -15% to flooding recovery time.
  • -15% to time of fire extinguishing.
Wows_icon_modernization_PCM024_Engine_Mod_II.png

Propulsion Modification 2

1000000Silver_icon.png Reduces time to full speed:
  • -50% to time for reaching full power.
  • Increases engine power when the ship starts moving.
Improves acceleration from 0-6 knots only. Does not improve acceleration in reverse, only forward. Unavailable to British cruisers, but they have high acceleration by default.
Wows_icon_modernization_PCM025_SteeringGear_Mod_II.png

Steering Gears Modification 2

1000000Silver_icon.png Reduces rudder shift time:
  • -20% to rudder shift time.

Tier VIII+ Equipment (Slot 6)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM026_LookoutStation_Mod_I.png

Target Acquisition System Modification 1

2000000Silver_icon.png Increases maximum acquisition range:
  • +50% to range of assured acquisition of enemy ships.
  • +20% to spotting range.
  • +20% to the acquisition range of torpedoes.
The spotting mechanics ignore line-of-sight obstacles — such as islands — when within 2 km (3 km with this upgrade) from an enemy. That's the "assured acquisition" range. Stacks with Vigilance when spotting torpedoes.
Wows_icon_modernization_PCM027_ConcealmentMeasures_Mod_I.png

Concealment System Modification 1

2000000Silver_icon.png Reduces ship detectability range: Stacks with Concealment Expert.
Wows_icon_modernization_PCM035_SteeringGear_Mod_III.png

Steering Gears Modification 3

2000000Silver_icon.png Steering Gears Modification 3:
  • -80% to steering gears repair time.
  • -40% to rudder shift time.
Stacks with Steering Gears Modification 2. Unavailable to battleships.

Tier IX+ Equipment (Slot 3)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM013_MainGun_Mod_III.png

Main Battery Modification 3

3000000Silver_icon.png Decreases main battery loading time:
  • -12% to main battery loading time.
  • -13% to the main battery traverse speed.
Guns reload faster in exchange for slower turret traverse. Stacks with Basic Firing Training.
Wows_icon_modernization_PCM014_Torpedo_Mod_III.png

Torpedo Tubes Modification 3

3000000Silver_icon.png Decreases reload time of torpedo tubes:
  • -15% to torpedo tube reload time.
  • +50% to the risk of torpedo tubes becoming incapacitated.
Stacks with Torpedo Armament Expertise.
Icon_modernization_PCM015_FireControl_Mod_II.png

Gun Fire Control System Modification 2

3000000Silver_icon.png Extends firing range of the main battery:
  • +16% to main battery maximum firing range.
Stacks with Advanced Firing Training.
Icon_modernization_PCM029_FireControl_Mod_II_US.png

Artillery Plotting Room Modification 2

3000000Silver_icon.png Increases firing accuracy of main battery:
  • -11% to maximum dispersion of main battery.
Available only to American battleships.
Wows_icon_modernization_PCM016_FlightControl_Mod_II.png

Flight Control Modification 2

3000000Silver_icon.png Increases aircraft speed:
  • +5% to maximum aircraft speed.
Wows_icon_modernization_PCM017_Airplanes_Mod_III.png

Air Groups Modification 3

3000000Silver_icon.png Increases attack aircraft HP:
  • +15% to attack aircraft survivability.
Applicable to Torpedo Bomber and Dive Bomber aircraft; useful for aircraft carriers only.
Icon_modernization_PCM018_AirDefense_Mod_III.png

AA Guns Modification 3

3000000Silver_icon.png Increases AA effectiveness:
  • +25% to average damage per second of AA mounts.
Affects damage per second of all AA guns. Stacks with Basic Firing Training.
Wows_icon_modernization_PCM019_SecondaryGun_Mod_III.png

Secondary Battery Modification 3

3000000Silver_icon.png Decreases secondary battery loading time:
  • -20% to secondary battery loading time.
Stacks with Basic Firing Training.
Wows_icon_modernization_PCM042_RLSSearch_Mod_I.png

Surveillance Radar Modification 1

N/A Increases Surveillance Radar duration: This modification is only available via the Container system or as a reward from Ranked Battles.