Difference between revisions of "Template:Anti-PT Imp Setups"

Revision as of 17:21, 17 September 2023

Unlike most standard Abyssals, "PT boats" ( & ) 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 \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 ( \prod^{All Equipment}{\text{Mod}_\text{EquipmentAcc}} ) \times \text{Mod}_\text{Night} \Big\rfloor - \text{EVA}_\text{PT} + 1 }[/math]

[math]\displaystyle{ \text{Acc}_\text{Standard} }[/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]
Type	Luck	Eva	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	?	?	?	?	?

[math]\displaystyle{ \text{Mod}_\text{Amagiri} }[/math] being:
- 64 for Amagiri Kai Ni/D
- 32 for DD and DE adjacent to Amagiri Kai Ni/D.
- 0 otherwise.

[math]\displaystyle{ \text{Mod}_\text{Formation} }[/math] the Acc mod of each formation (see here),
[math]\displaystyle{ \text{Mod}_\text{Morale} }[/math] the morale effects (see here)
[math]\displaystyle{ \text{Mod}_\text{PT} = }[/math] 0.420.35 x 1.2
[math]\displaystyle{ \text{Mod}_\text{Add} = }[/math] 24(15+5) x 1.2,

[math]\displaystyle{ \text{Mod}_\text{Night} }[/math] being 0.7 during night battle, 1 during day battle.
[math]\displaystyle{ \text{Mod}_\text{Vanguard} }[/math] being 1.2 when using the Vanguard Formation.^[9]

[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,

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

Ships 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.

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]
Equipment		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	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	?
Armed	Armed Daihatsu	1.45	1.3	1.2	?
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

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:
- Hidden accuracy bonus setups,
- Sparkled ships.

References:
↑ https://twitter.com/yukicacoon/status/1701605514671751674 ↑ https://twitter.com/yukicacoon/status/1621162082245967876 ↑ https://wikiwiki.jp/kancolle/PT%E5%B0%8F%E9%AC%BC%E7%BE%A4 ↑ https://twitter.com/Divinity_123/status/1659942254671216642 ↑ https://twitter.com/Xe_UCH/status/1554299068486397953?s=20&t=OHU47ATyROzVxkmLVVTL-w ↑ https://docs.google.com/spreadsheets/d/1-T9OfSDOoLKQXtBDeP80izgWl3f5G_eqMQYLW-WbSnw/edit#gid=680928319 ↑ https://twitter.com/Divinity_123/status/1492264067809038343 ↑ https://docs.google.com/spreadsheets/d/1BpctZEkEF94iOR1I704d3Rn9kKg1gAj9tK4cXdq1CNs/edit#gid=0 ↑ 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. ↑ https://twitter.com/Divinity_123/status/1492264067809038343?s=20&t=wbO5mDqGOL3gRBY9jG3c5w ↑ Medium Medium Main High-Angle Guns may work too. The above mentioned information were determined for the original PT Imp, and may be different for the newer Schnellboot Imp [1]. The Big Picture on how to defeat them seems unchanged.

@@ Line 5: / Line 5: @@
 * All ship types suffer a severe {{Hit}} accuracy and {{Firepower}} firepower penalty against PT boats.
 * Attacking them with larger guns is not very effective, smaller guns being recommended instead.
+*[[Support Expedition]]s are not affect by any of the following<ref>https://twitter.com/yukicacoon/status/1701605514671751674</ref>.
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