User:Jigaraphale/Sandbox/13

Anti-Air Cut-in

https://docs.google.com/spreadsheets/d/1agGoLv57g5eOXLXtNIKHRoBYy61OQYxibWP6Vi_DMuY/edit#gid=13450409 https://twitter.com/CC_jabberwock/status/1665406435969097729?s=20

 
Akizuki performing the API 1 (HHR) AACI.

Using special equipment setups, ships may perform one of multiple special anti-air maneuvers during Stage 2. These moves are often referred to as AA Cut-ins, or AACI due to the way the equipment is displayed in the screen before they are performed. Particular AACI are often referred to by their acronym, such as BBR for AACI 5.

AACI grants a multiplier to the Fixed Shootdown of all Allied Fleet ships regardless of what ship uses it, referred to as K-value. On top of that effect, AACI will remove a fixed number of planes from each enemy bomber slot. These effects make depleting the entirety of enemy bombers much more feasible.

Although several ships can be equipped with a proper AACI setup, only one ship can perform an AACI. If Stage 2 happens multiple times, like in an Air Battle node, then each Air Phase's Stage 2 might roll an AACI.

If the enemy fleet has a valid setup, it may as well activate an AACI. If that happens, an animation will not be shown, but the effects will function normally. It can activate during the regular airstrike phase, but not during LBAS phases.

  • There is a bug that allows enemy ships to activate AACI even if they were sunk[1].

The trigger chance of a given AACI is solely determined by its API value, and is arbitrary. Fleet AA, Ship AA, Adjusted AA, Air State, or any other parameter like Luck and LoS have no bearing in AACI trigger rates. Most trigger chances were datamined from KanColle Vita, and tests in the Browser version corroborated the results.

  •  Air is used to indicate an Air Radar.
    • Any Radar with   AA stat of 2 or higher is considered an Air Radar, even if not explicitly stated by the game.

AACI Patterns
API value Type Shot down
per slot
K-value Rate User Notes
None - +1A = 1, B = 0 1.0 N/A Player's fleet only Triggers if no other AACI is activated
1 HHR
     Air
+8A = 3, B = 5 1.7 65% Akizuki-class 
 
 
 
 
HA guns x2 + Air Radar
2 HR
   Air
+7A = 3, B = 4 1.7 58% HA guns + Air Radar
3 HH
   
+5A = 2, B = 3 1.6 50% HA guns x2
4 MSAR
      Air
+7A = 5, B = 2 1.5 52% Battleships Large Main Gun + AA Shell + AAFD + Air Radar
5 BBR
 8+ AA  8+ AA  Air
+5A = 2, B = 3 1.5 55% All HA guns (≥8 AA) x2 + Air Radar
6 MSA
     
+5A = 4, B = 1 1.45 40% Battleships Large Main Gun + AA Shell + AAFD
7 HAR
     Air
+4A = 2, B = 2 1.35 45% All HA guns + AAFD + Air Radar
8 BR
 8+ AA  Air
+5A = 2, B = 3 1.4 50% HA guns (≥8 AA) + Air Radar
9 HA
   
+3A = 1, B = 2 1.3 40% HA guns + AAFD
10 HCR
   9+ AA  Air
+9A = 3, B = 6 1.65 60% Maya Kai Ni  HA guns + AA Gun (≥9 AA) + Air Radar
11 HC
   9+ AA
+7A = 2, B = 5 1.5 55% HA guns + AA Gun (≥9 AA)
12 CGR
 9+ AA  3+ AA  Air
+4A = 1, B = 3 1.25 45% All AA Gun (≥9 AA) + AA Gun (≥3 AA) + Air Radar
13  8+ AA  9+ AA  Air +5A = 1, B = 4 1.35 35% All
(except Maya Kai Ni )
HA guns (≥8 AA) + AA Gun (≥9 AA) + Air Radar
14 HGR
     Air
+5 1.45 62% Isuzu Kai Ni  HA guns + AA Gun + Air Radar
15 HG
   
+4 1.3 55% HA guns + AA Gun
16 HGR
     Air
+5 1.4 62% Kasumi Kai Ni B  &
Yuubari Kai Ni  (not Toku/D 
 
)
HA guns + AA Gun + Air Radar
17 HG
   
+3 1.25 55% Kasumi Kai Ni B  HA guns + AA Gun
18 C
 9+ AA
+3 1.2 60% Satsuki Kai Ni  AA Gun (≥9 AA)
19 HC
 7- AA  9+ AA
+6 1.45 58% Kinu Kai Ni  HA guns (≤7 AA) + AA Gun (≥9 AA)
20 C
 9+ AA
+4 1.25 65% AA Gun (≥9 AA)
21 HR
   Air
+6 1.45 60% Yura Kai Ni  HA guns + Air Radar
22 C
 9+ AA
+3 1.2 60% Fumizuki Kai Ni  AA Gun (≥9 AA)
23 G
 3~8 AA
+2 1.05 80% UIT-25/I-504 
 
AA Gun (3 to 8 AA)
24 HG
   3~8 AA
+4 1.25 40% Tenryuu-class Kai Ni 
 
HA guns + AA Gun (3 to 8 AA)
25    Air   +8 1.55 60% Ise-class Kai/Ni 
 
 
 
RLK2  + Air Radar + AA Shell
26    Air +7 1.4 55% Yamato-class Kai Ni 
 
 
10cm Twin HA Mount Kai  + Air Radar
27      Air +6 1.55 55% (5%)when accounting for API 8 rate Ooyodo Kai  10cm Twin HA Mount Kai  + RLK2  + Air Radar
28    Air +5 1.4 55% Ise-class Kai/Ni 
 
 
 
&
Musashi Kai/Ni 
 
RLK2  + Air Radar
29 HR
   Air
+6 1.55 60% Hamakaze B Kai  &
Isokaze B Kai 
HA guns + Air Radar
Using HA guns (≥8 AA) has a high chance to proc AACI 5/8 instead.
30 HHH
     
+4 1.3 45% Tenryuu Kai Ni  &
Gotland Kai/Andra 
 
HA guns x3
31 HH
   
+3 1.2 52% Tenryuu Kai Ni  HA guns x2
32    
OR
   
OR
   
+4 1.2 50% Royal Navy Ships &
Kongou-class Kai Ni/B/C
16inch Mk.I Triple + FCR  + QF 2-pounder 
OR
20-tube 7inch UP  + 20-tube 7inch UP  / QF 2-pounder 
33 HG
   4+ AA
+4 1.35 45% Gotland Kai/Andra 
 
HA guns + AA Gun (≥4 AA)
34     +8 1.6 55% Fletcher-class 2 5inch Mk.30 + GFCS Mk.37 
35    
OR
   
+7 1.55 55% 5inch Mk.30 + GFCS Mk.37  + 5inch Single Gun Mount Mk.30  / Kai 
36      
OR
     
OR
     
+7 1.55 50% 2 5inch Single Gun Mount Mk.30  / Kai  + GFCS Mk.37 
37     +5 1.45 40% 2 5inch Single Gun Mount Mk.30 Kai  (not base)
38     +11 1.85 57% Atlanta-class  2 GFCS Mk.37 + 5inch Twin CD 
39     +11 1.7 57% GFCS Mk.37 + 5inch Twin CD  + 5inch Twin CD 
40      
OR
     
OR
     
+11 1.7 56% 2 5inch Twin CD  / GFCS Mk.37 + 5inch Twin CD  + GFCS Mk.37 
41    
OR
   
OR
   
+10 1.65 55% 2 5inch Twin CD  / GFCS Mk.37 + 5inch Twin CD 
42      Sp  6+ AA +11 1.65 ?% Yamato-class Kai Ni 
 
 
Very large radar 
 
+ 1 or 2 10cm Twin HA Gun CD  + 0 or 1 AA Gun (≥6 AA)
43      Sp +9 1.6 ?%
44    Sp  6+ AA +7 1.6 ?%
45    Sp +6 1.55 ?%
46    9+ AA  Air
OR
   9+ AA  Air
+? ? ?% Haruna Kai Ni B  35.6cm Twin K3 (Dazzle)  / 35.6cm Twin K4  + AA Gun (≥9 AA) + Air Radar[1]
As of the 26/05/2023 update, AACI ordering has been revised, making most of the following outdated.
Notes
  • If multiple ships can trigger AACI, the ship that rolls the highest API number takes priority.
    • If API numbers are tied, priority goes by fleet slot order from top to bottom.
  • If a single ship fulfills multiple AACI requirements:
    • A single roll is done to check for all AACIs.
    • This means that an AACI with higher priority and higher trigger rate completely blocks lower priority AACI from activating.
      • For example, Akizuki with a  8+ AA 8+ AA Air setup fulfills the requirements of the AACIs with API values 1, 2, 3, 5, and 8, with 1 being the highest priority. Due to this, the only API that Akizuki can trigger is 1, because a success will activate it, and a failure implies that the roll wouldn't meet the 58%, 50%, 55%, and 50% trigger rates as it has failed to meet a 65% rate roll.
    • Conversely, an AACI with lower priority but higher trigger rate has a chance of occurring, if the roll fails to pass the higher priority AACI.
      • For example, Isokaze B Kai with  8+ AA 8+ AA Air fulfils 5 (55% rate) and 29 (60% rate), with 5 having priority. This means that in total, 5 will occur 55% of the time, and 29 will occur the leftover 5% of the time (60% - 55%).
    • Priority is: (1 > 2 > 3, 10 > 11, 14 > 15, 16 > 17, 19, 21, 25, 42 > 43 > 44 > 45) > 4 > 5 > 6 > 8 > 7 > (26 > 27 > 28, 29) > 9 > (33) > 12 > 13 > (18, 20, 22, 23, 30 > 31 > 24, 32)[2][3]
      • Examples:
        • Kinu Kai Ni can trigger both API 20 and 19.
        • The same ship can activate APIs 20, 5, and 29.
      • Note: At some point during 2018-2019(?), priority was changed from 7 > 8 to 8 > 7. Prior to this, both 7 and 8 could be triggered with  8+ AA  Air[4], whereas now only 8 can be triggered.

Sequential AACIs

The Sequential AACIs are the Cut-ins introduced with the implementation of Johnston onwards. So far, they are exclusive to the Fletcher-class and Atlanta-class . Different from Original AACIs, each eligible AACI will be rolled independently if the previous roll has failed. If all Sequential rolls fail, an additional Original Type roll is performed. This grants the specific ships with access to Sequential AACIs extremely high combined trigger rates.

  • Example: Atlanta with 5inch Twin CD  + 5inch Twin CD  + GFCS  fulfils 39, 40, 41, and 5. Rolled independently, this gives 57% for 39, ~24% for 40, ~10.4% for 41, ~4.7% for 5, for a total of ~96% chance of some AACI occurring.

Sequential AACIs are, in order of priority: (34 > 35 > 37 > 36, 38 > 39 > 40 > 41) > (Original AACI)[2]