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PT Imp Pack

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Info

Basic

PT Imp Pack

No.1637 PT小鬼群

Abyssal Destroyer

 
Statistics
  HP 9   Firepower 9
  Armor 19   Torpedo 88
  Evasion ??   AA 12
  Aircraft 0   ASW ??
  Speed Fast   LoS ??
  Range Short   Luck ??
Air Power Slots
0 2
Equipment Space
  High-speed Abyssal Torpedo  0
  - Unequipped - 0
- Locked - -
- Locked - -
Extra Statistics
  Opening Airstrike
No
  Opening Torpedo
No
  Day Battle
Shelling (14)
   Artillery Spotting
No
  Closing Torpedo
103
  ASW Attack
Day/Night (13+)
   Night Battle
Single Torpedo (107)

Basic II

PT Imp Pack II

No.1638 PT小鬼群

Abyssal Destroyer

 
Statistics
  HP 9   Firepower 9
  Armor 29   Torpedo 98
  Evasion ??   AA 18
  Aircraft 0   ASW ??
  Speed Fast   LoS ??
  Range Short   Luck ??
Air Power Slots
0 2
Equipment Space
  High-speed Abyssal Torpedo  0
  High-speed Abyssal Torpedo  0
- Locked - -
- Locked - -
Extra Statistics
  Opening Airstrike
No
  Opening Torpedo
No
  Day Battle
Shelling (14)
   Artillery Spotting
No
  Closing Torpedo
123
  ASW Attack
Day/Night (13+)
   Night Battle
Cut-in: Torpedo (190 x2)

Basic III

PT Imp Pack III

No.1639 PT小鬼群

Abyssal Destroyer

 
Statistics
  HP 15   Firepower 15
  Armor 29   Torpedo 98
  Evasion ??   AA 18
  Aircraft 0   ASW ??
  Speed Fast   LoS ??
  Range Short   Luck ??
Air Power Slots
0 2
Equipment Space
  High-speed Abyssal Torpedo  0
  High-speed Abyssal Torpedo  0
- Locked - -
- Locked - -
Extra Statistics
  Opening Airstrike
No
  Opening Torpedo
No
  Day Battle
Shelling (20)
   Artillery Spotting
No
  Closing Torpedo
123
  ASW Attack
Day/Night (13+)
   Night Battle
Cut-in: Torpedo (199 x2)

Basic IV

PT Imp Pack IV

No.1640 PT小鬼群

Abyssal Destroyer

 
Statistics
  HP 18   Firepower 18
  Armor 39   Torpedo 118
  Evasion ??   AA 24
  Aircraft 0   ASW ??
  Speed Fast   LoS ??
  Range Short   Luck ??
Air Power Slots
0 2
Equipment Space
  High-speed Abyssal Torpedo  0
  High-speed Abyssal Torpedo  0
- Locked - -
- Locked - -
Extra Statistics
  Opening Airstrike
No
  Opening Torpedo
No
  Day Battle
Shelling (23)
   Artillery Spotting
No
  Closing Torpedo
143
  ASW Attack
Day/Night (13+)
   Night Battle
Cut-in: Torpedo (234 x2)

Quotes

Event Japanese English Note
Introduction
 None
Attacking
 キャッハハ…キャハハッキャッ……キャハハ… Kyahaha... Kyahaha kya... kyahaha...
Under attack
 イ゛イ゛ッ…！　イ゛ィーッ……！ Iiig...! Iiiiig....!
Sunk
 None


Character

Notes

PT Imps were introduced during the Fall 2015 Event and were reworked with the Summer 2017 Event.

  • On 20/11/2015, a tweet revealed a bug that prevented destroyers from being able to hit the PT Imp Groups. As a result, the devs readjusted the damage calculations in a live patch update on the same day.
Anti-PT boat
Unlike most standard Abyssals, "PT boats" (PT Imp Pack  & Schnellboot Imp Pack ) are "very small and fast".
  • All ship types suffer a severe   accuracy and   firepower penalty against PT boats.
  • Attacking them with larger guns is not very effective, smaller guns being recommended instead.
  • Support Expeditions are not affect by any of the following[1].
Attack formula against PT boats
The Attack formula against PT boats:[2][3]
Jet Assault & Airstrike
  • [math]\displaystyle{ \text{Damage}_\text{PT}= \text{Atk}_\text{post-cap} \times \text{Rand} [0.5 ; 0.8] }[/math]


LBAS[4]
  • [math]\displaystyle{ \text{Damage}_\text{PT}= \text{Atk}_\text{post-cap} \times \text{Rand} [0.4 ; 0.7] }[/math]


Shelling
  • [math]\displaystyle{ \text{Damage}_\text{PT}= ( 0.3 \times \text{Atk}_\text{post-cap} + \sqrt{\text{Atk}_\text{post-cap}} + 10 ) \times \prod^{All Equipment}{\text{Mod}_\text{EquipmentAtk}} }[/math]


Opening & Closing Torpedo Salvos
  • [math]\displaystyle{ \text{Damage}_\text{PT}= 0.3 \times \text{Atk}_\text{post-cap} + \sqrt{\text{Atk}_\text{post-cap}} + 10 }[/math]


Night Battle
  • Night Battle data are unclear yet.


With
  • [math]\displaystyle{ \text{Atk}_\text{post-cap} }[/math] the post cap attack power defined here,
  • [math]\displaystyle{ \text{Mod}_\text{EquipmentAtk} }[/math] the bonuses given by equipment, described below.
Accuracy formula against PT boats
The Accuracy formula against PT boats:[5][6][7][8]
[math]\displaystyle{ \text{Hit Rate}_\text{vs.PT} \text{%} = \Big\lfloor ( 0.3 \times \text{Accuracy}_\text{Atk} + \sqrt{\text{Accuracy}_\text{Atk}} + 15 ) \times 1.2 \times \text{Mod}_\text{Ship} \times \Big( \prod^{All Equipment}{\text{Mod}_\text{EquipmentAcc}} \Big) \times \text{Mod}_\text{Night} \Big\rfloor - \text{EVA}_\text{PT} + 1 }[/math]
With
  • [math]\displaystyle{ \text{Acc}_\text{Atk} }[/math] the standard accuracy described here
    • PT boats are "DDs" in the game, so the [math]\displaystyle{ \text{Mod}_\text{formation} }[/math] for vanguard is 1.1 during shelling, and 1.2 during the torpedo phase.
    • Historical accuracy bonuses during Events are included in the Standard Accuracy Term, i.e. it is affected by the [math]\displaystyle{ \text{Mod}_\text{PT} }[/math] modifier.
  • [math]\displaystyle{ \text{EVA}_\text{PT} }[/math] the PT estimated evasion   described bellow,
PT boats stats
Type Luck   Eva   [math]\displaystyle{ \text{EVA}_\text{PT} }[/math]
Line Ahead  Echelon  Line Abreast 
PT Imp Pack  ? ? 81? 87? ?
PT Imp Pack II  60 220 80 87 85
PT Imp Pack III  60 250 82 89 88
PT Imp Pack IV  ? ? ? 84? ?
Schnellboot Imp Pack  ? ? ? ? ?
Schnellboot Imp Pack II  ? ? ? ? ?
Schnellboot Imp Pack Elite  ? ? ? ? ?


The main Accuracy modifiers are
  • [math]\displaystyle{ \text{Mod}_\text{Amagiri} }[/math] being include in [math]\displaystyle{ \text{Acc}_\text{Atk} }[/math]:
  • [math]\displaystyle{ \text{Mod}_\text{Ship} }[/math] the bonus given by ship types, described below,
  • [math]\displaystyle{ \text{Mod}_\text{EquipmentAcc} }[/math] the bonuses given by equipment, described below,
  • [math]\displaystyle{ \text{Mod}_\text{Night} }[/math] being 0.7 during night battle, 1 during day battle.


Amagiri Kai Ni/D 
  has the ability to prioritize focusing on attacking PT imps with significantly increased accuracy if any are present.

  • DD placed in the composition slots above and below her will gain a noticeable accuracy boost and will prioritize attacking PT boats if any are present.
  • The PT boat targeting rate is 100% for all affected ships [9].

During Events, some special bonuses may be added, with "historical" ships and equipment gaining some accuracy bonuses[10].

Ship Type [math]\displaystyle{ \text{Mod}_\text{Ship} }[/math]
DD & DE 1.0
CL, CLT, & CT 0.82
All other types 0.7
Equipment [math]\displaystyle{ \text{Mod}_\text{EquipmentAcc} }[/math] [math]\displaystyle{ \text{Mod}_\text{EquipmentAtk} }[/math]
1st equipped 2nd equipped 1st equipped 2nd equipped
  Small Small Caliber Main Guns[11] 1.3 1.15 1.5 2.11.5×1.4
  Sec Secondary Guns[12] 1.55 1 1.3
  Anti-Aircraft Guns 1.45 1.35 1.2 1.441.2×1.2
  Skilled Lookouts 
  		1.75 1 1.1
 Armed Soukoutei (Armored Boat Class)  1.45 1.3 1.2 1.1
Armed Daihatsu  1.45 1.3 1.2 1.1
  Ka-Tsu Tanks 
 [13][14] 		1 1.3 1 1.1
 Bomber  Seaplane Bombers & Seaplane Fighters 1.5 1 1.2
    Dive Bombers & Jets 
  		1.375 1.2 1.4 1.821.4×1.3
All other equipment 1 1
Notes
  • It is recommended to use anti-PT setups on DDs only, such setups compromising overall combat effectiveness.
  • Having a Reinforcement Expansion is important because it can save a ship slot by containing a machine gun or skilled lookouts.
  • Combining equipment is recommended to see significant boosts to accuracy.
  • The   Ka-Tsu Tanks 
          bonus does not stack with the   Armed Boats 
          ones.
  • Using other setups improving accuracy is also advisable:
References:
  1. ↑ https://twitter.com/yukicacoon/status/1701605514671751674
  2. ↑ https://twitter.com/yukicacoon/status/1621162082245967876
  3. ↑ https://wikiwiki.jp/kancolle/PT%E5%B0%8F%E9%AC%BC%E7%BE%A4
  4. ↑ https://twitter.com/Divinity_123/status/1659942254671216642
  5. ↑ https://twitter.com/Xe_UCH/status/1554299068486397953?s=20&t=OHU47ATyROzVxkmLVVTL-w
  6. ↑ https://docs.google.com/spreadsheets/d/1-T9OfSDOoLKQXtBDeP80izgWl3f5G_eqMQYLW-WbSnw/edit#gid=680928319
  7. ↑ https://twitter.com/Divinity_123/status/1492264067809038343
  8. ↑ https://docs.google.com/spreadsheets/d/1BpctZEkEF94iOR1I704d3Rn9kKg1gAj9tK4cXdq1CNs/edit#gid=0
  9. ↑ https://twitter.com/twillwave1024/status/1705662216979324937
  10. ↑ https://twitter.com/Divinity_123/status/1492264067809038343?s=20&t=wbO5mDqGOL3gRBY9jG3c5w
  11. ↑  Medium Medium Main High-Angle Guns 
          do not to work here.
  12. ↑  Sp_Sec Large Secondary (High-Angle) Guns  may work here too, to be determined.
  13. ↑ https://twitter.com/yukicacoon/status/1770007636160946603
  14. ↑ https://twitter.com/yukicacoon/status/1781690482130911711
[edit]

Trivia

  • They are a reference to the Patrol Torpedo boats deployed by United States Navy during World War II.
    • Nicknamed "Devil Boats" by the Japanese.
  • Currently the only non-boss abyssal ships with voice lines apart from Artillery Imp.

References

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