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How it Works: Upgrades. 30 Jun 2020
Icon_12.png
A player earns access to Upgrades at Account Level 9, allowing him to customize and improve each ship's performance to suit his play style. Ships of different tiers have access to different upgrades, described by the tables below. Certain upgrades are unique to certain ship types or nations, or even to a specific ship; check the Notes table columns for more detail.

Contents

Managing upgrades

One upgrade can be mounted in each slot. A particular upgrade can be mounted only in its appropriate slot.

An upgrade — mounted or demounted (in Inventory) — can be sold for half of its nominal purchase cost (some upgrades are not purchasable but obtained by other means). If the desired upgrade is available in Inventory, it may be mounted only from Inventory; an upgrade can be purchased only if one is not available in Inventory.

A mounted upgrade can be demounted to Inventory for 25Doubloons, or sold. When selling a ship, all upgrades mounted on that ship must either be sold or demounted.

Base Upgrades

Base upgrades are purchased for credits. Some packages for purchase, challenge rewards, and mission rewards may also grant base upgrades.

Slot 1 (Tier I+)

Icon Equipment Name Cost Description Notes
Icon_modernization_PCM030_MainWeapon_Mod_I.png

Main Armaments Modification 1

125000Credits  :
  • -20% to the risk of main battery becoming incapacitated.
  • +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_PCM031_SecondaryWeapon_Mod_I.png

Auxiliary Armaments Modification 1

125000Credits  :
  • +100% to secondary battery survivability.
  • +100% to AA mounts survivability.
Wows_icon_modernization_PCM032_PowderMagazine_Mod_I.png

Magazine Modification 1

125000Credits  :
  • -70% to the risk of your ship's magazine detonation.
(Note that the Juliet Charlie -100% to the risk of your ship's magazine detonating. signal flag provides 100% protection.)
Icon_modernization_PCM034_Guidance_Mod_0.png

Aiming Systems Modification 0

125000Credits  :
  • +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.
icon_modernization_PCM003_Airplanes_Mod_I.png

Air Groups Modification 1

125000Credits  :
  • +20 to the speed of air groups returning to the aircraft carrier.
Available only to aircraft carriers.
Icon_modernization_PCM084_Pinger_Mod_I.png

Sonar Modification 1

125000Credits Improves sonar survivability:
  • -25% to the risk of the sonar becoming incapacitated.
  • -25% sonar repair time.
Available only to submarines.

Slot 2 (Tier III+)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM020_DamageControl_Mod_I.png

Damage Control System Modification 1

250000Credits  :
  • -3% to the risk of flooding when torpedoes hit the torpedo protection.
  • -5% to the risk of fire.
Torpedo flooding modifier only applies to ships with a torpedo protection system (viewable under the Survivability tab of the Port screen).
Icon_modernization_PCM069_Movement_Mod_I.png

Engine Room Protection

[1]
250000Credits  :
  • -20% each to the risk of becoming incapacitated.
  • -20% to repair time.
Wows_icon_modernization_PCM068_PlaneEngine_Mod_I.png

Aircraft Engines Modification 1

250000Credits  :
  • +10% engine boost time.
Available only to aircraft carriers.

Stacks with the Improved Engine Boost skill.

  1. Replaces Propulsion Modification 1 and Steering Gears Modification 1.

Slot 3 (Tier V+)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM006_MainGun_Mod_II.png

Main Battery Modification 2

500000Credits  :
  • +15% to main battery traverse speed.
Stacks with Grease the Gears skills.
Wows_icon_modernization_PCM033_Guidance_Mod_I.png

Aiming Systems Modification 1

500000Credits  :
  • -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 Extends the firing range of the main battery and secondary battery: +16% main battery firing range. / +5% secondary battery firing range. / -5% secondary battery dispersion. instead.
Icon_modernization_PCM028_FireControl_Mod_I_US.png

Artillery Plotting Room Modification 1

500000Credits Extends the firing range of the main battery and secondary battery:
  • +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.

Stacks with Long-Range Secondary Battery Shells, Improved Secondary Battery Aiming.
Wows_icon_modernization_PCM067_Fighter_Mod_II.png

Attack Aircraft Modification 1

500000Credits  :
  • +2 seconds attack time.
Available only to aircraft carriers.
Wows_icon_modernization_PCM066_TorpedoBomber_Mod_II.png

Torpedo Bombers Modification 1

500000Credits  :
  • +5 seconds attack time.
Available only to aircraft carriers.
Icon_modernization_PCM092_SkipBomber_Mod_I.png

Skip Bomber Modification 1

500000Credits  :
  • +2 seconds attack time.
Available only to aircraft carriers.
Icon_modernization_PCM070_Torpedo_Mod_IV.png

Torpedo Tubes Modification 1

500000Credits  :
  • +20% to the traverse speed of torpedo tubes
  • −40% to the chances of critical damage to torpedo tubes
  • +5% to the speed of shipborne torpedoes.
Cannot be mounted on an aircraft carrier.
Icon_modernization_PCM071_TorpedoBombs_Mod_I.png

Aerial Torpedoes Modification 1

500000Credits  :
  • +5% speed of torpedoes dropped from the air.
Available only to aircraft carriers.
Wows_icon_modernization_PCM012_SecondaryGun_Mod_II.png

Secondary Battery Modification 1

500000Credits  :
  • +20% secondary battery range.
  • -20% secondary battery dispersion.
See the Secondary Armament article.
Wows_icon_modernization_PCM018_AirDefense_Mod_I.png

AA Guns Modification 1

500000Credits  :
  • -20% reduction in the preparation time of the priority AA sector.
See the Anti-Aircraft Fire article for the secrets of AA defenses.
Cannot be mounted on an aircraft carrier.
Icon_modernization_PCM082_Autonomy_Mod_I.png

Dive Capacity Modification 1

500000Credits
  • +10% dive capacity recharge rate on the surface.
Available only to submarines.

Stacks with Dive Capacity Modification 2 and the Improved Battery commander skills.

Icon_modernization_PCM085_Pinger_Mod_II.png

Sonar Modification 2

500000Credits Quicker target acquisition:
  • +10% sonar ping velocity.
Available only to submarines.

Stacks with the Enhance Impulse Generator commander skill.

Slot 4 (Tier VI+)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM023_DamageControl_Mod_II.png

Damage Control System Modification 2

1000000Credits  :
  • -15% to flooding recovery time.
  • -15% to time of fire extinguishing.
Stacks with battleship skill Basics of Survivability.
Wows_icon_modernization_PCM024_Engine_Mod_II.png

Propulsion Modification 1

1000000Credits Reduces time to full speed:
  • -50% to time for reaching full power.
  • Increases engine power when the ship starts moving.
Unavailable to British light cruisers or British destroyers, but they have high acceleration by default.
Details in footnote.[1]
Wows_icon_modernization_PCM025_SteeringGear_Mod_II.png

Steering Gears Modification 1

1000000Credits  :
  • -20% to rudder shift time.
Not available to aircraft carriers.
Wows_icon_modernization_PCM063_Fighter_Mod_I.png

Attack Aircraft Modification 2

1000000Credits  :
  • +7.5% aircraft HP.
Available only to aircraft carriers.
Stacks with Survivability Expert
and Air Groups Modification 2 : +7.5% aircraft HP..
Wows_icon_modernization_PCM064_TorpedoBomber_Mod_I.png

Torpedo Bombers Modification 2

1000000Credits  :
  • +7.5% aircraft HP.
Available only to aircraft carriers.
Stacks with Survivability Expert
and Air Groups Modification 2 : +7.5% aircraft HP..
Wows_icon_modernization_PCM065_DiveBomber_Mod_I.png

Bombers Modification 2

1000000Credits  :
  • +7.5% aircraft HP.
Available only to aircraft carriers.
Stacks with Survivability Expert
and Air Groups Modification 2 : +7.5% aircraft HP..
Icon_modernization_PCM081_SkipBomber_Mod_I.png

Skip Bomber Modification 2

1000000Credits  :
  • +7.5% aircraft HP.
Available only to aircraft carriers.
Stacks with Survivability Expert
and Air Groups Modification 2 : +7.5% aircraft HP..
Icon_modernization_PCM089_DepthCharges_Mod_I.png

Depth Charges Modification 1

1000000Credits More deep explody things.
  • +2 number of depth charges.
Available to ships with depth charges.
Icon_modernization_PCM087_AirSupport_Mod_I.png

Airstrike Modification 1

1000000Credits Stronger air strikes.
  • -20% Air Strike reload time.
  • +25% aircraft HP.
  • +15% depth charge damage.
Available to ships with anti-surface air strike capability and to those with no organic ASW weapon system.
Icon_modernization_PCM090_SteeringGearSubmarine_Mod_II.png

Submarine Steering Gears Modification 2

1000000Credits For a more agile submarine.
  • -20% rudder shift time.
  • -20% diving plane shift time.
Available only to submarines.

Stacks with Submarine Steering Gears Modification 3, the Enhanced Rudder Gears consumable, and the Helmsman commander skill.

  1. Research seems to show that the specific effects are as follows:
    • -50% to time for reaching full power. This is the time needed to "spool" the engines to full power in the direction the ship is traveling, and thus achieve maximum acceleration away from 0 knots. In other words, it increases the second derivative of speed (until the engines reach full power). It will not decrease the time it takes to reverse the engines to decelerate towards 0 knots. This effect is applied at all speeds.
    • Increases engine power when the ship starts moving. This increases the ship's acceleration away from 0 knots when between -6 and 6 knots displayed speed. In other words, it increases the first derivative of speed (within this speed band). It does not improve the ship's deceleration towards 0 knots.

Slot 5 (Tier VIII+)

Modification 1
Icon Equipment Name Cost Description Notes
Icon_modernization_PCM026_LookoutStation_Mod_I.png

Torpedo Lookout System

[1]
2000000Credits  :
  • to a base value of 1.8 km.
Stacks with the battleship skill Vigilance.
Does not extend the torpedo acquisition range for the Hydroacoustic SearchWhile active, detects all enemy ships and torpedoes within the specified radius, without regard of obstacles such as smoke and terrain. consumable.
Icon_modernization_PCM072_AbilityWorktimeBoost_Mod_I.png

Ship Consumables Modification 1

2000000Credits  :
  • +10% to the action time of ship consumables.
Cannot be mounted on aircraft carriers.
Stacks multiplicatively with the Consumables Enhancements skills, Emergency Repair Expert, Eye in the Sky.
Icon_modernization_PCM073_AbilityWorktimeBoostCV_Mod_I.png

Squadron Consumables Modification 1

2000000Credits  :
  • +50% to the action time of squadron consumables.
Can be mounted on aircraft carriers only.
Stacks multiplicatively with

Improved Engine Boost, Repair Specialist, Enhanced Reactions.

Wows_icon_modernization_PCM027_ConcealmentMeasures_Mod_I.png

Concealment System Modification 1

2000000Credits  : Stacks multiplicatively with various concealment skills.
Wows_icon_modernization_PCM035_SteeringGear_Mod_III.png

Steering Gears Modification 2

2000000Credits  :
  • -40% to rudder shift time.
  • -80% to steering gears repair time.
Unavailable to battleships or aircraft carriers.

Stacks with Steering Gears Modification 1 : -20% rudder shift time..
Wows_icon_modernization_PCM009_FlightControl_Mod_I.png

Flight Control Modification 1

2000000Credits Does not work with tactical squadrons:
  • -5% aircraft restoration time.
  • +2 deck places.
Can be mounted on aircraft carriers only.

Stacks with the Air Supremacy skill.
Icon_modernization_PCM091_SteeringGearSubmarine_Mod_III.png

Submarine Steering Gears Modification 3

2000000Credits For a submarine that can dance on a coral head.
  • -40% rudder shift time.
  • -40% diving plane shift time.
  • -80% steering gears repair time.
Available only to submarines.

Stacks with Submarine Steering Gears Modification 2, the Enhanced Rudder Gears consumable, and the Helmsman commander skill.

  1. Replaces the Target Acquisition System Modification 1 upgrade.

Slot 6 (Tier IX+)

Icon Equipment Name Cost Description Notes
Wows_icon_modernization_PCM013_MainGun_Mod_III.png

Main Battery Modification 3

3000000Credits  :
  • -12% to main battery loading time.
  • -13% to the main battery traverse speed.
Guns reload faster in exchange for slower turret traverse.
Stacks multiplicatively with the Grease the Gears skills, Close Quarters Combat, Top Grade Gunner, Main Battery and AA Specialist, Swift in Silence, and Fearless Brawler.
Wows_icon_modernization_PCM014_Torpedo_Mod_III.png

Torpedo Tubes Modification 2

3000000Credits  :
  • -15% to torpedo tube reload time.
  • +50% to the risk of torpedo tubes becoming incapacitated.
Torpedo tubes reload faster in exchange for greater risk of incapacitation.
Stacks with the Fill the Tubes skills.
Mitigated by the Preventive Maintenance skills.
Icon_modernization_PCM015_FireControl_Mod_II.png

Gun Fire Control System Modification 2

3000000Credits  :
  • +16% to main battery maximum firing range.
Not available to Russian destroyers, Russian battleships, or American battleships.
Stacks with Main Battery and AA Expert.
Icon_modernization_PCM029_FireControl_Mod_II_US.png

Artillery Plotting Room Modification 2

3000000Credits  :
  • -11% to maximum dispersion of main battery.
Available only to American battleships.
Wows_icon_modernization_PCM016_FlightControl_Mod_II.png

Flight Control Modification 2

3000000Credits  :
  • +5% cruising speed.
Available only to aircraft carriers.
Stacks with Improved Engines, Bomber Flight Control.
Wows_icon_modernization_PCM017_Airplanes_Mod_III.png

Air Groups Modification 2

3000000Credits  :
  • +7.5% to aircraft HP.
Available only to aircraft carriers.
Stacks with the Slot 4 aircraft upgrades, and Survivability Expert.
Icon_modernization_PCM074_AuxiliaryArmament_Mod_I.png

Auxiliary Armaments Modification 2

[1]
3000000Credits  :
  • −20% to the secondary battery reload time
  • +15% to the continuous damage of AA guns
  • +15% to the damage within the explosion radius of shells fired by AA defenses
  • +2 explosions in AA salvos when the Defensive AA Fire consumable is active
Stacks with a number of commander skills.
Icon_modernization_PCM086_Autonomy_Mod_II.png

Dive Capacity Modification 2

3000000Credits Allows longer dives.
  • +20% dive capacity.
Available only to submarines.

Stacks with Dive Capacity Modification 1 and the Improved Battery commander skills.

  1. Replaces the AA Guns Modification 2 and Secondary Battery Modification 2 upgrades.

Special Upgrades

A special upgrade is an upgrade that modifies the behavior of an associated consumable. These upgrades are obtained through the Armory, currently for CoalCoal. Special upgrades mount and demount like other upgrades — only one upgrade in a slot at one time.

In the Upgrades section of the Equipment page in Port, a small green star WoWs_icon_modernization_special.png will appear on the slot where a special upgrade can be mounted when one is available in Inventory.

The ship must be able to equip the corresponding consumable in order to mount the upgrade.

A special upgrade does nothing if its corresponding consumable is not mounted. For instance, Defensive AA Fire Modification 1 : +20% action time. / -10% cooldown time. functions only if a Defensive AA FireWhile active, the damage per second of large caliber anti-aircraft guns is increased. consumable is also mounted.

Slot 1

Icon Equipment Name Cost[1] Sell Price Description Notes
Wows_icon_modernization_PCM039_CrashCrew_Mod_I.png

Damage Control Party Modification 1

17,000Coal 625,000Credits Increases the action time of the Damage Control Party and Fast Damage Control Team consumables.:
  • +40% action time.
Any ship.
Wows_icon_modernization_PCM038_Spotter_Mod_I.png

Spotting Aircraft Modification 1

17,000Coal 625,000Credits Increases the action time of the Spotting Aircraft and Rapid Takeoff Spotter consumables.:
  • +30% action time.
Ships with an appropriate spotter aircraft consumable only.
Note the interaction with the Eye in the Sky cruiser skill.

Slot 2

Icon Equipment Name Cost[1] Sell Price Description Notes
Wows_icon_modernization_PCM036_SpeedBooster_Mod_I.png

Engine Boost Modification 1

17,000Coal 625,000Credits Increases the action time of the Engine Boost and Emergency Engine Power consumables.:
  • +30% action time.
Tier III-X ships with an
Engine Boost consumable only.
Wows_icon_modernization_PCM040_AirDefenseDisp_Mod_I.png

Defensive AA Fire Modification 1

17,000Coal 625,000Credits  :
  • +20% action time.
  • -10% cooldown time.
Ships with a
Defensive AA FireWhile active, the damage per second of large caliber anti-aircraft guns is increased. consumable only.

Stacks with Ship Consumables Modification 1 : +10% action time. and the Consumables Specialist skills.

Wows_icon_modernization_PCM041_SonarSearch_Mod_I.png

Hydroacoustic Search Modification 1

17,000Coal 625,000Credits Increases the action time of the Hydroacoustic Search and Short-Range Hydroacoustic Search consumables.:
  • +20% action time.
Ships with an appropriate
Hydroacoustic SearchWhile active, detects all enemy ships and torpedoes within the specified radius, without regard of obstacles such as smoke and terrain. consumable only.

Stacks with Ship Consumables Modification 1 : +10% action time. and the Consumables Enhancements skills.

Wows_icon_modernization_PCM042_RLSSearch_Mod_I.png

Surveillance Radar Modification 1

17,000Coal 625,000Credits  :
  • +20% action time.
Ships with the
Surveillance RadarWhile active, detects all enemy ships within the specified radius, disregarding obstacles such as smoke and terrain. consumable only.

Stacks with Ship Consumables Modification 1 : +10% action time. and the Consumables Enhancements skills.

Slot 3

Icon Equipment Name Cost[1] Sell Price Description Notes
Wows_icon_modernization_PCM037_SmokeGenerator_Mod_I.png

Smoke Generator Modification 1

17,000Coal 625,000Credits Increases the action time of the Smoke Generator, Short-Burst Smoke Generator, and Crawling Smoke Generator consumables, but reduces smoke screen duration.

The effects are not applicable to the Exhaust Smoke Generator consumable.:

  • +30% to the emission time.
  • -5% to duration of the smoke clouds produced.
Tier V-X ships with the
appropriate type of Smoke Generator
consumable only.

Stacks with the Consumables Enhancements skills.

Unique Upgrades ("Legendary" Upgrades)

Unique upgrades (often referred to as "Legendary upgrades") are upgrades for Tier X tech tree ships. The aim of these upgrades is to adjust the characteristics of a ship to make it perform better in a specific role or offer an alternative style of game play while keeping ships in balance with each other, even if one ship has the unique upgrade and another does not.

The upgrades mount and demount like other upgrades (only one upgrade in a slot at a time) in slots 5 or 6, depending on the ship. In the Upgrades section of the Equipment page in Port, a small red star WoWs_icon_modernization_legendary.png will appear on the slot where a unique upgrade can be mounted when one is available in Inventory.

To obtain a unique upgrade, each can be purchased for 19,200Research Points in the Research Bureau section of the Armory.

Slot 5

Occupying Slot 5, these upgrades block the mounting of e.g. Concealment System Modification 1: -10% to detectability radius. / +5% to the dispersion of enemy shells fired at your ship..

——  Upgrades  ——  (click here)

Slot 6

By occupying Slot 6, these upgrades block some popular choices such as Main Battery Modification 3 : -12% main battery loading time. / -13% main battery traverse speed..

——  Upgrades  ——  (click here)

Notes

  1. 1.0 1.1 1.2 A 25% discount coupon is available once per month.
  2. From Update 0.9.5 note: Reduced the bonus to engine power. Now, with the unique upgrade and the “Propulsion Modification 1” upgrade, it’ll take the cruiser 21% more time to reach maximum forward speed, and it’ll take three times more time to reach maximum backward speed. The ship will still be gaining speed faster with these two upgrades compared to having just one of them. At the same time, the time it takes the ship to reach 1/2 and 3/4 of her speed remains almost the same. Deceleration is unaffected.