-3% to the risk of flooding when torpedoes hit the torpedo protection.-25% to the risk of the sonar becoming incapacitated.+20 to the speed of air groups returning to the aircraft carrier.-40% to maximum dispersion of secondary battery shells.+20% to secondary battery maximum firing range.-40% to maximum dispersion of main battery shells.(Note that the Juliet Charlie signal flag provides 100% protection.)Īircraft carriers and submarines cannot detonate. -70% to the risk of your ship's magazine detonation.+100% to secondary battery survivability.-20% to the risk of torpedo tubes becoming incapacitated.-20% to the risk of main battery becoming incapacitated.Some packages for purchase, challenge rewards, and mission rewards may also grant base upgrades. When selling a ship, all upgrades mounted on that ship must either be sold or demounted.īase upgrades are purchased for credits. 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.Ī mounted upgrade can be demounted to Inventory for 25, or sold. A particular upgrade can be mounted only in its appropriate slot.Īn 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). 4.2.15 Forced Takeoff and Landing Equipment.4.2.8 Extended Main Battery Effective Range.4.2.4 Automated Main Battery Loading Mechanism.4.2.1 Main Battery Fire Control Station.4.1.4 Improved Main Battery Loading Mechanisms.4.1.3 Upgraded Damage Control Equipment.4 Unique Upgrades ('Legendary' Upgrades).3.2.4 Surveillance Radar Modification 1.3.2.3 Hydroacoustic Search Modification 1.

3.1.1 Damage Control Party Modification 1.2.6.7 Auxiliary Armaments Modification 2.2.6.4 Artillery Plotting Room Modification 2.2.6.3 Gun Fire Control System Modification 2.2.5.7 Submarine Steering Gears Modification 3.2.5.4 Concealment System Modification 1.2.5.3 Squadron Consumables Modification 1.2.4.11 Submarine Steering Gears Modification 2.2.4.1 Damage Control System Modification 2.2.3.3 Artillery Plotting Room Modification 1.2.2.1 Damage Control System Modification 1.2.1.2 Auxiliary Armaments Modification 1.

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