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PT Imp Pack

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Info

Basic

PT Imp Pack

No.1637 PT小鬼群

Abyssal Destroyer

Enemy Full PT Imp Pack.png
Statistics
Icon HP.png HP 9 Icon Gun.png Firepower 9
Icon Armor.png Armor 19 Icon Torpedo.png Torpedo 88
Icon Evasion.png Evasion ?? Icon AA.png AA 12
Icon Aircraft.png Aircraft 0 Icon ASW.png ASW ??
Icon Speed.png Speed Fast Icon LOS.png LOS ??
Icon Range.png Range Short Icon Luck.png Luck ??
Air Power Slots
0 2
Equipment Space
Torpedo High-speed Abyssal TorpedoEquipment Item 61cm Quadruple (Oxygen) Torpedo Mount.png 0
Xx c.png - Unequipped - 0
- Locked - -
- Locked - -
Extra Statistics
Icon Aircraft.png Opening Airstrike
No
Icon Torpedo.png Opening Torpedo
No
Icon Gun.png Day Battle
Shelling (14)
Icon Gun.pngIcon LOS.png Artillery Spotting
No
Icon Torpedo.png Closing Torpedo
103
Icon ASW.png ASW Attack
Day/Night (13+)
Icon Gun.pngIcon Torpedo.png Night Battle
Single Torpedo (107)

Basic II

PT Imp Pack II

No.1638 PT小鬼群

Abyssal Destroyer

Enemy Full PT Imp Pack.png
Statistics
Icon HP.png HP 9 Icon Gun.png Firepower 9
Icon Armor.png Armor 29 Icon Torpedo.png Torpedo 98
Icon Evasion.png Evasion ?? Icon AA.png AA 18
Icon Aircraft.png Aircraft 0 Icon ASW.png ASW ??
Icon Speed.png Speed Fast Icon LOS.png LOS ??
Icon Range.png Range Short Icon Luck.png Luck ??
Air Power Slots
0 2
Equipment Space
Torpedo High-speed Abyssal TorpedoEquipment Item 61cm Quadruple (Oxygen) Torpedo Mount.png 0
Torpedo High-speed Abyssal TorpedoEquipment Item 61cm Quadruple (Oxygen) Torpedo Mount.png 0
- Locked - -
- Locked - -
Extra Statistics
Icon Aircraft.png Opening Airstrike
No
Icon Torpedo.png Opening Torpedo
No
Icon Gun.png Day Battle
Shelling (14)
Icon Gun.pngIcon LOS.png Artillery Spotting
No
Icon Torpedo.png Closing Torpedo
123
Icon ASW.png ASW Attack
Day/Night (13+)
Icon Gun.pngIcon Torpedo.png Night Battle
Cut-in: Torpedo (190 x2)

Basic III

PT Imp Pack III

No.1639 PT小鬼群

Abyssal Destroyer

Enemy Full PT Imp Pack III.png
Statistics
Icon HP.png HP 15 Icon Gun.png Firepower 15
Icon Armor.png Armor 29 Icon Torpedo.png Torpedo 98
Icon Evasion.png Evasion ?? Icon AA.png AA 18
Icon Aircraft.png Aircraft 0 Icon ASW.png ASW ??
Icon Speed.png Speed Fast Icon LOS.png LOS ??
Icon Range.png Range Short Icon Luck.png Luck ??
Air Power Slots
0 2
Equipment Space
Torpedo High-speed Abyssal TorpedoEquipment Item 61cm Quadruple (Oxygen) Torpedo Mount.png 0
Torpedo High-speed Abyssal TorpedoEquipment Item 61cm Quadruple (Oxygen) Torpedo Mount.png 0
- Locked - -
- Locked - -
Extra Statistics
Icon Aircraft.png Opening Airstrike
No
Icon Torpedo.png Opening Torpedo
No
Icon Gun.png Day Battle
Shelling (20)
Icon Gun.pngIcon LOS.png Artillery Spotting
No
Icon Torpedo.png Closing Torpedo
123
Icon ASW.png ASW Attack
Day/Night (13+)
Icon Gun.pngIcon Torpedo.png Night Battle
Cut-in: Torpedo (199 x2)

Basic IV

PT Imp Pack IV

No.1640 PT小鬼群

Abyssal Destroyer

Enemy Full PT Imp Pack IV.png
Statistics
Icon HP.png HP 18 Icon Gun.png Firepower 18
Icon Armor.png Armor 39 Icon Torpedo.png Torpedo 118
Icon Evasion.png Evasion ?? Icon AA.png AA 24
Icon Aircraft.png Aircraft 0 Icon ASW.png ASW ??
Icon Speed.png Speed Fast Icon LOS.png LOS ??
Icon Range.png Range Short Icon Luck.png Luck ??
Air Power Slots
0 2
Equipment Space
Torpedo High-speed Abyssal TorpedoEquipment Item 61cm Quadruple (Oxygen) Torpedo Mount.png 0
Torpedo High-speed Abyssal TorpedoEquipment Item 61cm Quadruple (Oxygen) Torpedo Mount.png 0
- Locked - -
- Locked - -
Extra Statistics
Icon Aircraft.png Opening Airstrike
No
Icon Torpedo.png Opening Torpedo
No
Icon Gun.png Day Battle
Shelling (23)
Icon Gun.pngIcon LOS.png Artillery Spotting
No
Icon Torpedo.png Closing Torpedo
143
Icon ASW.png ASW Attack
Day/Night (13+)
Icon Gun.pngIcon Torpedo.png 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-ImpPT Imp Pack
Unlike most standard Abyssals, PT-Imp PacksPT Imp Pack are very small and fast.
  • All ship types suffer a severe Accuracy accuracy and Firepower firepower penalty against PT-Imp.
  • Attacking them with larger guns is not very effective, smaller guns being recommended instead.


Accuracy formula against PT-Imps
The Accuracy formula against PT-Imps:[1][2][3][4]
  • [math]\displaystyle{ \text{Hit Rate}_\text{vs.PT} \text{%} = \Big\lfloor \big\lfloor \lfloor \text{ACC}_\text{Standard} + \text{Mod}_\text{Amagiri} \rfloor \times \text{Mod}_\text{Formation} \times \text{Mod}_\text{Morale} \times \text{Mod}_\text{PT} + \text{Mod}_\text{Add} \big\rfloor \times \text{Mod}_\text{Vanguard} \times \text{Mod}_\text{Ship} \times \text{Mod}_\text{Equipment} \times \text{Mod}_\text{Night} \Big\rfloor - \text{EVA}_\text{PT} + 1 }[/math]

With:

  • [math]\displaystyle{ \text{ACC}_\text{Standard} }[/math] is the standard accuracy described here
    • PT-Imps are "DDs" in the game, so the [math]\displaystyle{ \text{Mod}_\text{formation} }[/math] for vanguard is 0.88/1.32 for the top and bottom halves respectively.
    • 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] is the PT estimated evasion Evasion described bellow,
PT-Imp stats
Type Luck Luck Eva Evasion [math]\displaystyle{ \text{EVA}_\text{PT} }[/math]
Line AheadLineAhead.png EchelonEchelon.png Line AbreastLineAbreast.png
PT Imp PackPT Imp Pack ? ? 81? 87? ?
PT Imp Pack IIPT Imp Pack II 60 220 80 87 85
PT Imp Pack IIIPT Imp Pack III 60 250 82 89 88
PT Imp Pack IVPT Imp Pack IV ? ? ? 84? ?


The main Accuracy modifiers are:

  • [math]\displaystyle{ \text{Mod}_\text{Amagiri} }[/math] being:
  • [math]\displaystyle{ \text{Mod}_\text{Formation} }[/math] is the Acc mod of each formation (see here),
  • [math]\displaystyle{ \text{Mod}_\text{Morale} }[/math] are the morale effects (see here)
  • [math]\displaystyle{ \text{Mod}_\text{PT} }[/math] is 0.42,
  • [math]\displaystyle{ \text{Mod}_\text{Add} }[/math] is 24,
  • [math]\displaystyle{ \text{Mod}_\text{Night} }[/math] is 0.7 during night battle, 1 during day battle.
  • [math]\displaystyle{ \text{Mod}_\text{Vanguard} }[/math] is 1.2 when using the Vanguard FormationVanguard.png.[5]
  • [math]\displaystyle{ \text{Mod}_\text{Ship} }[/math] is the bonus given by ship types, described below,
  • [math]\displaystyle{ \text{Mod}_\text{Equipment} }[/math] is the bonus given by equipment, described below,
    • When several equipment are used on a ship, it is then the product of those bonuses.


Amagiri Kai Ni/DAmagiri Kai Ni
Amagiri Kai Ni D
also has the ability to prioritize focusing on attacking PT-Imp with increased accuracy if any are present.

  • Ships placed in the composition slots above and below her will gain a small accuracy boost and will prioritize attacking PT-Imp if any are present.


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{Equipment} }[/math]
1st equipped 2nd equipped
Small Main GunHigh-Angle Gun Small Guns & Main High-Angle Guns[6] 1.3 1.15
Secondary GunHigh-Angle Gun Secondary Guns & Secondary High-Angle Guns 1.55 1
Anti-Air Gun AA Guns 1.45 1.35
Lookout Skilled LookoutsSkilled Lookouts
Torpedo Squadron Skilled Lookouts
1.75 1
Landing CraftArmed Armed BoatsArmed Daihatsu
Soukoutei (Armored Boat Class)
1.45 1.3
SeaplaneSeaplane Fighter Seaplane Bombers & Seaplane Fighters 1.5 1
Dive Bomber Dive Bombers [7] 1.375 1.2
All other equipment 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.
  • Using other setups improving accuracy is also advisable:
References:
  1. https://twitter.com/Xe_UCH/status/1554299068486397953?s=20&t=OHU47ATyROzVxkmLVVTL-w
  2. https://docs.google.com/spreadsheets/d/1-T9OfSDOoLKQXtBDeP80izgWl3f5G_eqMQYLW-WbSnw/edit#gid=680928319
  3. https://twitter.com/Divinity_123/status/1492264067809038343
  4. https://docs.google.com/spreadsheets/d/1BpctZEkEF94iOR1I704d3Rn9kKg1gAj9tK4cXdq1CNs/edit#gid=0
  5. The formula is inconsistent for attackers with 2 small guns in vanguard formation. For the most part, underestimations (up to 10% difference in hit rate) are observed. It is not clear what may lead to this at the moment.
  6. Medium Main High-Angle Gun5inch Twin Dual-purpose Gun Mount (Concentrated Deployment)
    GFCS Mk.37 + 5inch Twin Dual-purpose Gun Mount (Concentrated Deployment)
    may work too.
  7. JetsKikka Kai
    Jet Keiun Kai
    may work too based on damage formula, but untested.
[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