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Smoke Generator (Smoke Screen)

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



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!


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.
  • 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
  • The trigger rate depends on:
    • The number of "Smoke Generators" in the fleet
    • The flagship Luck Luck (secretary for Combined Fleets).
  • Regarding the equipment:
  • There is no formula yet, but a measure of trigger rate can be found here: [1].
  • 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.

  • 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 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
Torpedo Phase
Fleet Type 1 Type 2 Type 3
Allied 0.45 0.42 0.42
Enemy 0.7 0.6 0.5
Allied 0.25

  • 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.


How To Obtain


Stock equipment of: Miyuki Kai NiMiyuki Kai Ni

From quest: B189 (x3, choice)

Event reward for:


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)/Bonuses


Smoke Generator.png Smoke Generator (Smoke Screen)

Improvement Not
★ Improvement
0~5 6~9
Development material Consumed 5/7 7/12
Improvement material Consumed 3/4 4/7
Equipment Card Drum Canister (Transport Use).png Equipment Card Smoke Generator (Smoke Screen).png
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 Increased

See Also