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Difference between revisions of "Smoke Generator (Smoke Screen)"

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(→‎How To Obtain: recommended recipe correction)
 
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==Notes==
 
==Notes==
 
===How To Obtain===
 
===How To Obtain===
{{recipe|Fuel= 10|Ammo= 10|Steel= 10|Bauxite= 10|flag= DD}}
+
{{recipe|Fuel= 10|Ammo= 10|Steel= 10|Bauxite= 11|flag= DD}}
  
 
'''Stock equipment of:''' {{Ship/Link|Miyuki Kai Ni}}
 
'''Stock equipment of:''' {{Ship/Link|Miyuki Kai Ni}}

Latest revision as of 05:33, 6 July 2024

No.500 発煙装置(煙幕)
Smoke Generator.png Surface Ship Equipment
Effects: Evasion+1
trigger Smoke screen
Scrap value: Fuel 1 Ammo 0 Steel 0 Bauxite 1 (Buildable)

Equipment Card Smoke Generator (Smoke Screen).png

Equipment Character Smoke Generator (Smoke Screen).png

Equipment Item Smoke Generator (Smoke Screen).png

Equipment Full Smoke Generator (Smoke Screen).png

Refittable Ship Types
Fast Battleship Battleship
Aviation Battleship Standard Aircraft Carrier
Armored Carrier Light Carrier
Heavy Cruiser Aviation Cruiser
Light Cruiser Torpedo Cruiser
Training Cruiser Destroyer
Coastal Defense Ship Submarine
Aircraft Carrying Submarine Seaplane Tender
Fleet Oiler Submarine Tender
Repair Ship Amphibious Assault Ship

Introduction

敵から艦隊を隠す「煙幕」を発生させる艦載の発煙装置です。
主に駆逐艦などの小型艦で運用し、大きな「煙幕」を発生させることで敵の砲撃や爆撃の光学照準を阻害、艦隊を守ります。
多数投入することで、より濃密な煙幕を展開させることも可能です。
※電探装備の敵の攻撃には注意が必要です!

A shipboard smoke generator that creates a "smoke screen" hiding the fleet from enemies.
It is mainly used by small ships such as destroyers, and by generating a large "smoke screen", it obstructs the direct sights of enemy artillery and bombing attacks, protecting the fleet.
It is also possible to deploy a denser smoke screen by using a lot of them.
※Be careful when attacking enemies equipped with radars!

Mechanics

Smoke Generator Smoke Generators can be used in combat to deploy a smoke screen.

Example of a large smoke deployed.
  • There are 3 smoke screen sizes, being Small < Medium < Large.
    • The maximum smoke size that can be generated is dependent on the number of smoke generators, being respectively 1/2/3.
    • Note that Improved improvements also affect the maximum smoke level possible.
  • It sharply reduces the accuracy of all fleets, proportionally to the smoke screen size (the hit rate is still capped at 11%).
    • This effect can be partially bypassed by using radars (both sides).
  • The effect will last for the day battle, even so the animation will fade before the battle's end.

Smoke activation button next to the Formation ones.
  • If equipped, it can be activated with a specific button when selecting the formation.
    • It can be activated multiple times per sortie until it triggers, being triggerable once, in day battle only.
  • It cannot be activated in Exercises in the current implementation.
  • The trigger rate is not 100% and depends on the fleet's flagship's luck Luck, as well as the amount and type of Smoke Generators used.
    • For combined fleets, it is the luck of the main flagship.
    • The size of the triggered smoke screen depends on how many smoke generators are used.
  • It will only trigger at the beginning of the Shelling phase.

The 3 different smoke size

Two formulas have been determined to approximate the trigger rate of smoke screens.

  • The 2nd formula is based on the 1st one with additional hypothesis,
  • A measurement of the trigger rate can be found here,
  • Both formulas can be directly compared here.
  • It is possible to have a total trigger rate for all 3 sizes of 100%, giving the FS has enough luck & enough generators are used.
Trigger Rate Formula 1 [3]
[math]\displaystyle{ \text{P}_\text{0} = 3.2 - 0.2 \times \text{K} - \text{N}_\text{Generator} }[/math]
  • If [math]\displaystyle{ \text{Luck}_\text{flag} ≥ 1 \text{ & } \text{N}_\text{Generator} ≥ 3 }[/math], then [math]\displaystyle{ \text{P}_\text{0} = 0 }[/math]
[math]\displaystyle{ \text{K} = \bigg\lceil \sqrt{ \text{Luck}_\text{flag} } + 0.3 \times \bigstar_\text{base} + 0.5 \times \bigstar_\text{Kai} \bigg\rceil }[/math]
[math]\displaystyle{ \text{N}_\text{Generator} = 1 }[/math] [math]\displaystyle{ \text{N}_\text{Generator} = 2 }[/math] [math]\displaystyle{ \text{N}_\text{Generator} ≥ 3 }[/math]
[math]\displaystyle{ \begin{align} \text{P}_\text{1} &= 1 - \text{P}_\text{0} \\ \text{P}_\text{2} &= 0 \\ \text{P}_\text{3} &= 0 \end{align} }[/math]
[math]\displaystyle{ \begin{align} \text{P}_\text{1} &= 1 - \text{P}_\text{0} - \text{P}_\text{2} \\ \text{P}_\text{2} &= 0.05 \times ( 1 - \text{P}_\text{0} ) \times ( \text{K} + 2 ) \\ \text{P}_\text{3} &= 0 \end{align} }[/math]
[math]\displaystyle{ \begin{align} \text{P}_\text{1} &= 1 - \text{P}_\text{2} - \text{P}_\text{3} \\ \text{P}_\text{2} &= \min ( 0.3 ; 1 - \text{P}_\text{3}) \\ \text{P}_\text{3} &= X \times \text{K} + 0.15 \times ( \text{N}_\text{Generator} - 3 ) \end{align} }[/math]
  • The X coefficient is unclear yet, being about 0.04~0.045.
With
  • [math]\displaystyle{ \text{P}_\text{0}, \text{P}_\text{1}, \text{P}_\text{2}, \text{P}_\text{3} }[/math] the respective rates for the trigger of smokes levels 0 to 3,
  • [math]\displaystyle{ \text{N}_\text{Generator} }[/math] the amount of Smoke Generators:
  • [math]\displaystyle{ \text{Luck}_\text{flag} }[/math] the flagship's luck,
  • [math]\displaystyle{ \bigstar_\text{base} }[/math] the total improvement Improved level of the base generators,
  • [math]\displaystyle{ \bigstar_\text{Kai} }[/math] the total improvement Improved level of the Kai generators,
Trigger Rate Formula 2 [4]
[math]\displaystyle{ \text{Level 0}_\text{Rate %} = \max \big( 0 ; \min ( 100 ; 3.2 - 0.2 \times \text{K} - \text{N}_\text{Generator} ) \big) }[/math]
  • If [math]\displaystyle{ \text{Luck}_\text{flag} ≥ 1 \text{ & } \text{N}_\text{Generator} ≥ 3 }[/math], then [math]\displaystyle{ \text{Level 0}_\text{Rate %} = 0 }[/math]
[math]\displaystyle{ \text{K} = 5 \times \text{N}_\text{Generator} + 1.5 \times \sqrt{ \text{Luck}_\text{flag} } + 0.3 \times \bigstar_\text{base} + 0.5 \times \bigstar_\text{Kai} }[/math]
[math]\displaystyle{ \text{N}_\text{Generator} = 1 }[/math] [math]\displaystyle{ \text{N}_\text{Generator} = 2 }[/math] [math]\displaystyle{ \text{N}_\text{Generator} ≥ 3 }[/math]
[math]\displaystyle{ \begin{align} \text{Level 1}_\text{Rate %} &= 100 - \text{Level 0}_\text{Rate %} \\ \text{Level 2}_\text{Rate %} &= 0 \\ \text{Level 3}_\text{Rate %} &= 0 \end{align} }[/math]
[math]\displaystyle{ \begin{align} \text{Level 1}_\text{Rate %} &= ( 100 - \text{Level 2}_\text{Rate %} ) \times ( 1 - \text{Level 0}_\text{Rate %} ) \\ \text{Level 2}_\text{Rate %} &= ( 3 \times \big\lceil \text{K} - 5 \big\rceil + 1 ) \times ( 1 - \text{Level 0}_\text{Rate %} ) \\ \text{Level 3}_\text{Rate %} &= 0 \end{align} }[/math]
[math]\displaystyle{ \begin{align} \text{Level 1}_\text{Rate %} &= \min ( 0 ; 100 - \text{Level 2}_\text{Rate %} - \text{Level 3}_\text{Rate %}) \\ \text{Level 2}_\text{Rate %} &= \min ( 30 ; 100 - \text{Level 3}_\text{Rate %} ) \\ \text{Level 3}_\text{Rate %} &= 3 \times \big\lceil \text{K} - 15 \big\rceil + 1 \end{align} }[/math]
With
  • [math]\displaystyle{ \text{N}_\text{Generator} }[/math] the amount of Smoke Generators:
  • [math]\displaystyle{ \text{Luck}_\text{flag} }[/math] the flagship's luck,
  • [math]\displaystyle{ \bigstar_\text{base} }[/math] the total improvement Improved level of the base generators,
  • [math]\displaystyle{ \bigstar_\text{Kai} }[/math] the total improvement Improved level of the Kai generators,

  • The smoke gives an Accuracy malus to both fleets when used:
    • Please note that these are initial estimations and are subject to change.
    • It is currently unknown if the airstrike accuracy is affected by the smoke.
    • Some modifiers are near impossible to determine because the fleet hit the lower bound hit rate (11% hard cap).
    • There are some inconsistencies between "old" and "new" enemies.
    • Having a (surface ?) radar equipped reduces the smoke effect for both fleets, but only for the shelling phase.
[math]\displaystyle{ \text{Mod}_\text{smoke} }[/math][1]
Day Shelling
Fleet Radar Equipped Type 1 Type 2 Type 3
Allied No < 0.3 < 0.33 < 0.37
Yes 0.35 0.25 < 0.37
Enemy No < 0.69 < 0.7 < 0.7
Yes 0.91 0.83 0.75
Special Attacks[2]
Allied 1
Torpedo Phases
Fleet Type 1 Type 2 Type 3
Allied 0.45 0.42 0.42
Enemy 0.7 0.6 0.5
ASW
Allied 0.25
Enemy 1

  • AA effects:
    • The smoke affects the allied shootdown but not the enemy shootdown.
    • No fixed shootdown above 2 has been observed under a smoke.
    • The guaranteed shootdown does not seem to be affected.
    • A modifier to the Adjusted AA is suspected but there is not enough data to confirm it.
  • The Smoke reduce the Anti-Air Rocket Barrage trigger rate either directly or by reducing the Adjusted AA.

Notes

How To Obtain

Buildable:

Best craft recipe Fuel10 Ammunition10 Steel10 Bauxite11 DDShips with other special crafting will have
reduced rates of other specific equipment
Secretary: Any Destroyer

Stock equipment of: Miyuki Kai NiMiyuki Kai Ni

From quest: B189 (x3, choice)

Event reward for:

Uses

Used to improve: Smoke Generator (Smoke Screen)Smoke Generator (Smoke Screen)

Used by quest: F115 (x3)

Updates History

  • 2023-04-23: Implemented
  • 2023-05-01: Became improvable

Fit Bonuses

Smoke Generator (Smoke Screen) Equipment Bonuses
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
Miyuki Kai NiMiyuki Kai Ni - +4
Aoba (any)Aoba
Aoba Kai

Sendai (any)Sendai
Sendai Kai
Sendai Kai Ni

Kamikaze (any)Kamikaze
Kamikaze Kai

Harukaze (any)Harukaze
Harukaze Kai

Uranami (any)Uranami
Uranami Kai
Uranami Kai Ni

Shikinami (any)Shikinami
Shikinami Kai
Shikinami Kai Ni

Johnston (any)Johnston
Johnston Kai

Samuel B. Roberts (any)Samuel B. Roberts
Samuel B. Roberts Kai
Samuel B. Roberts Mk.II
- +3
Haguro (any)Haguro
Haguro Kai
Haguro Kai Ni

Atago (any)Atago
Atago Kai

Fubuki (any)Fubuki
Fubuki Kai
Fubuki Kai Ni

Amagiri (any)Amagiri
Amagiri Kai
Amagiri Kai Ni
Amagiri Kai Ni D

Inazuma (any)Inazuma
Inazuma Kai

Hatsushimo (any)Hatsushimo
Hatsushimo Kai
Hatsushimo Kai Ni

Kasumi (any)Kasumi
Kasumi Kai
Kasumi Kai Ni
Kasumi Kai Ni B

Hamanami (any)Hamanami
Hamanami Kai
- +2

Improvement

Smoke Generator.png Smoke Generator (Smoke Screen)

Improvement Not
Upgradable
★ Improvement
Level
0~5 6~9
Development material Consumed 5/7 7/12
Improvement material Consumed 3/4 4/7
Equipment
Consumed
Equipment Card Drum Canister (Transport Use).png Equipment Card Smoke Generator (Smoke Screen).png
Items
Consumed
-
Resources Fuel60 Ammunition0 Steel20 Bauxite30
Ship Helper Conversion
Ship Banner Miyuki Kai.png
Miyuki Kai/Ni
-
Mon Tue Wed Thu Fri Sat Sun
Improvement Improved effects
Smoke Generator 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Firepower 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Night Battle Power 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Accuracy Day? 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Accuracy Night? 1.30 1.84 2.25 2.60 2.91 3.18 3.44 3.68 3.90 4.11
Trigger rate [math]\displaystyle{ \text{K} = +0.3 \times \bigstar }[/math]
Smoke level Increased

See Also