Anti-Air Fire

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Introduction

This page is to provide detail on how plane shoot down is calculated during the Fleet Air Defense phase of aerial combat.

Fleet Air Defense

Adjusted Anti-Air

There are two adjusted anti-air values that are taken into account when calculating shoot down; the ship adjusted AA and fleet adjusted AA.

[math]\displaystyle{ \text{Adj AA}_\text{ship} = \text{AA}_\text{ship} + \sum_{\text{All Slots}} \left( \text{Mod}_\text{equipS} \times \text{AA}_\text{equip} \right) + \left( \text{Mod}_\text{ImprS} \times \sqrt{\bigstar} \right) }[/math]

  • [math]\displaystyle{ \text{AA}_\text{ship} }[/math] is the base   of the ship.
  • [math]\displaystyle{ \text{Mod}_\text{equipS} }[/math] is the ship anti-air equipment modifier. See the table below for details.
  • [math]\displaystyle{ \text{AA}_\text{equip} }[/math] is the base   of the equipment.
  • [math]\displaystyle{ \text{Mod}_\text{ImprS} }[/math] is the ship anti-air equipment improvement modifier.
  • [math]\displaystyle{ \bigstar }[/math] is the level of Improvement.

[math]\displaystyle{ \text{Adj AA}_\text{fleet} = 1.54 \times \left[ \text{Mod}_\text{formation} \times \sum_{\text{All Ships}} \left( \sum_{\text{All Slots}} \left( \text{Mod}_\text{equipF} \times \text{AA}_\text{equip} \right) + \left( \text{Mod}_\text{ImprF} \times \sqrt{\bigstar} \right) \right) \right] }[/math]

  • [math]\displaystyle{ \text{Mod}_\text{formation} }[/math] is the formation modifier.
    • Line Ahead/Echelon/Line Abreast/Combined Fleet Cruising 2/Combined Fleet Cruising 4: [math]\displaystyle{ 1.0 }[/math]
    • Vanguard/Combined Fleet Cruising 1: [math]\displaystyle{ 1.1 }[/math]\
    • Double Line: [math]\displaystyle{ 1.2 }[/math]
    • Combined Fleet Cruising 3: [math]\displaystyle{ 1.5 }[/math]
    • Diamond: [math]\displaystyle{ 1.6 }[/math]
  • [math]\displaystyle{ \text{Mod}_\text{equipF} }[/math] is the fleet anti-air equipment modifier. See the table below for details.
  • [math]\displaystyle{ \text{AA}_\text{equip} }[/math] is the base   of the equipment.
  • [math]\displaystyle{ \text{Mod}_\text{ImprS} }[/math] is the fleet anti-air equipment improvement modifier.
  • [math]\displaystyle{ \bigstar }[/math] is the level of Improvement.

Fixed Shoot Down

[math]\displaystyle{ \text{Shootdown}_\text{fixed} = \frac{ \left[ \text{Mod}_\text{equipped} \times \frac{\text{AA}_\text{ship} + \text{Adj AA}_\text{fleet}}{\text{Mod}_\text{equipped}} \right] \times \text{Mod}_\text{AACI} \times \text{Mod}_\text{CF}}{10} }[/math]

  • [math]\displaystyle{ \text{Mod}_\text{equipped} }[/math] is the modifier if the ship has any anti-air equipment equipped.
    • It is [math]\displaystyle{ 2 }[/math] if she is equipped with something and [math]\displaystyle{ 1 }[/math] if not.
  • [math]\displaystyle{ \text{Mod}_\text{AACI} }[/math] is the anti-air cut-in modifier. See below for details.
  • [math]\displaystyle{ \text{Mod}_\text{CF} }[/math] is the combined fleet modifier. It is [math]\displaystyle{ 1 }[/math] otherwise.
    • Main Fleet: [math]\displaystyle{ 0.72 }[/math]
    • Main Fleet: [math]\displaystyle{ 0.48 }[/math]

Proportional Shoot Down

[math]\displaystyle{ \text{Shootdown}_\text{proportional} = \frac{ \left[ \text{Mod}_\text{equipped} \times \frac{\text{AA}_\text{ship}}{\text{Mod}_\text{equipped}} \right] \times \text{Mod}_\text{CF}}{400} \times \text{N}_\text{planes} }[/math]

  • [math]\displaystyle{ \text{Mod}_\text{equipped} }[/math] is the modifier if the ship has any anti-air equipment equipped.
    • It is [math]\displaystyle{ 2 }[/math] if she is equipped with something and [math]\displaystyle{ 1 }[/math] if not.
  • [math]\displaystyle{ \text{Mod}_\text{CF} }[/math] is the combined fleet modifier. It is [math]\displaystyle{ 1 }[/math] otherwise.
    • Main Fleet: [math]\displaystyle{ 0.72 }[/math]
    • Main Fleet: [math]\displaystyle{ 0.48 }[/math]
  • [math]\displaystyle{ \text{N}_\text{planes} }[/math] is the current plane count of the targeted slot.

Anti-Air Cut-In