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LittleWhiteMouse

Smoke Generation -- By the Numbers

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Which ships have the best smoke?  It's (almost) common knowledge now that USN smoke lasts longer than other nations.  With the inclusion of the HMS Belfast and Season 5 of Ranked Battles well under way, I thought it might be time for a bit of a refresher and to dig a little deeper into what makes a good smoke laying vessel -- in particular, how much smoke a ship can lay out.  A very special thanks to Critter8 and especially to Lert for helping get the numbers for the Iwaki Alpha, Benson and Sims.  That's like ... an hour's worth of my life back.  Thank you both!

 

Smoke Emission and Duration Time per Ship Type in Seconds

  Tier 2 Emission Tier 2 Duration Tier 3 Emission Tier 3 Duration Tier 4 Emission Tier 4 Duration Tier 5 Emission Tier 5 Duration Tier 6 Emission Tier 6 Duration Tier 7 Emission Tier 7 Duration Tier 8 Emission Tier 8 Duration Tier 9 Emission Tier 9 Duration Tier 10 Emission Tier 10 Duration
Campbeltown - - 23s 109s - - - - - - - - - - - - - -
Iwaki Alpha - - - - 15s 80s - - - - - - - - - - - -

Anshan

- - - - - - - - 20s 81s - - - - - - - -
Perth - - - - - - - - 90s 10s - - - - - - - -
Blyskawica - - - - - - - - - - 20s 85s - - - - - -
Belfast - - - - - - - - - - 7s 103s - - - - - -
Flint - - - - - - - - - - 27s 121s - - - - - -
Lo Yang - - - - - - - - - - - - 28s 124s - - - -
Mikhail Kutuzov - - - - - - - - - - - - 20s 89s - - - -
British Cruisers - - - - - - 7s 96s 7s 99s 7s 103s 7s 106s 7s 110s 7s 113s
IJN & VMF Destroyers 20s 65s 20s 69s 20s 73s 20s 77s 20s 81s 20s 85s 20s 89s 20s 93s 20s 97s
USN Destroyers 22s 106s 23s 109s 24s 112s 25s 115s 26s 118s 27s 121s 28s 124s 29s 127s 30s 130s
KMS Destroyers soon soon soon soon soon soon soon soon soon soon soon soon soon soon soon soon soon soon

 

At first glance it might seem like the Emission Time -- the time that a Destroyer has to lay down smoke would determine which ships could lay more of it.  But there's more to it than that.  Speed is also a large determining factor.  A new cloud of smoke won't be put down unless there's room for it.  Thus, the faster a ship can move, the more likely there will be space for her to drop another puff of smoke.  With this in mind, I thought that American ships would still dominate when it came to how much smoke cover they could provide for their team, only being rivaled by the fastest of Soviet ships.

 

To do these tests, I would run the destroyers at five speeds running on a straight course:  1/4, 1/2, 3/4, Full, Full + Engine Boost (Destroyers only) and finally Full + Signal (+ Engine Boost if a Destroyer).  A dash (-) denotes that in a straight line test, I could not get the ship to generate the interim number of clouds.  NA means that it is not possible for the ship to generate that number of clouds.

 

Testing was done between patches 0.5.10 and 0.5.12.1 using the Training Room on the Ocean Map.  Smoke rings were counted as they were generated from free-camera perspective during the live client.  Smoke circles could not be accurately counted after they had been dropped in a line due to the range rendering limits.

 

Smoke generation follows an odd pattern with between 1 and 10 clouds being generated per charge.  Be warned:  Decimals ahead and no percentiles.  Full troll mode.

 

k4uweg.png

Japanese Destroyers - Number of Smoke Clouds Generated per Knot of Speed Traveled.  (Emission time: 20s)

 

 

wh0g1c.png

Soviet & Russian Destroyers - Number of Smoke Clouds Generated per Knot of Speed Traveled.  (Emission time:  20s)

 

 

rtkufo.png

American Destroyers - Number of Smoke Clouds Generated per Knot of Speed Traveled.  (Emission time noted beneath each ship).

 

2wgelg9.png

The Weirdos - Number of Smoke Clouds Generated per Knot of Speed Traveled.  (Emission time noted beneath each ship).

 

-Edit-

And here are the British Cruisers.  Note that I dragged the Belfast out of the weirdos and dropped her in here where her smoke suddenly makes a lot of sense.  In addition, the British Cruisers have a different colour entry, you'll notice.  This denotes moving at Half Speed + Signal.  Some players report some confusion as to how many smoke clouds the British cruisers will drop at a given speed and this shows it pretty conclusively.  Anything over 1/4 and you'll fall out of your smoke.  And you must cut throttle immediately upon deploying.

 

dbfyh.png

British Cruisers -- Number of Smoke Clouds Generated per Knot of Speed Traveled.

 

 

So what can we conclude from all of this?  Well, there's a few interesting points to note.

 

  • The maximum amount of smoke any ship can so far generate in World of Warships is 10 circles worth.  This is limited to ships tier 7 and higher.  Unless you're the Perth.
  • Even though the American ships have a longer emission period, they do not create more smoke clouds than other nations.  The intervals at which American ships release smoke is slower than the quick moving Soviet ships.  This leads to a longer, drawn out smoke screen from American warships, providing more cover for their team (approximately 10% more surface area covered in tests).
  • From these charts, you can see the speed setting your ship must travel to avoid detection.  Any ship moving faster than 12.5 knots will outrun the rate at which their ship drops smoke.  For every ship listed here, that limits them to moving at 1/4 speed.
  • Soviet destroyers also did this weird thing where they would generate 7 OR 10.  But not 8 or 9.  Go figure that one out.  You could see the density of their smoke drop increase dramatically when you went all out on speed.
  • The Mikhail Kutuzov is a smoke laying champion.  Suck it, Flint.  You too, Belfast.  *puts on her Russian bias hat*
Edited by LittleWhiteMouse
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lo95Nc6.gif

 

That was a lot of work, and I was happy to help.

 

This. One. Time.

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Finally someone did this.

 

 

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LWM, question....

 

Will you be doing a chart on repair times? or have you done 1 on repair times? Because if you haven't, there's quite a few people out there who would benefit if you were to create one!:yes_cap:

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LWM, question....

 

Will you be doing a chart on repair times? or have you done 1 on repair times? Because if you haven't, there's quite a few people out there who would benefit if you were to create one!:yes_cap:

 

Which repair times?  From Repair Party (regenerating health) or from Damage Control Party (undoing critical damage, putting out fires, etc)?
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Which repair times?  From Repair Party (regenerating health) or from Damage Control Party (undoing critical damage, putting out fires, etc)?

 

Why not both?

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Why not both?

 

Cause one is super easy.  Damage Control Party times (Standard / Premium)

 

  • All tier 1 ships:  60s / 40s
  • All Destroyers:  60s / 40s
  • HMS Warspite:  90s / 60s
  • All other Battleships:  120s / 80s
  • Everything else:  90s / 60s

 

Edit:  Bonus Round with up-time for each:

 

  • USN Battleships:  20s
  • IJN Battleships:  10s
  • Other Battleships, excluding Warspite:  15s.
  • Everything else:  5s.
Edited by LittleWhiteMouse
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What is all this Decimals Maths !!..   I'm reporting you for Trolling,  All Mathletes know it's all about the Percents !    Then you take it one step further and use  Seconds.. are you serious?

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You never cease to impress! Very well thought out! So when will they move you into a dev spot? Great work! 

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Hahaha! "The Weirdos". 

 

Thank you for the analysis on smokescreens!

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Dammit another great resource of info. Is there a post that has links to ALL of your guides?????

Edited by Kongou_of_Fog

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Three cheers for the hardest working mouse on the NA server! o7

 

*Offers some grains and cheese in hopes of a speedy death for myself should we meet in-game*

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Which repair times?  From Repair Party (regenerating health) or from Damage Control Party (undoing critical damage, putting out fires, etc)?

 

The later one...:aqua:

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I just don't know where you find the time to play mouse. You and all the other contributors like you, are to be commended. The time you put into these informative presentations is greatly appreciated. I wish there was something that a humble player like myself could do to thank you all.

A typical gaming session for me starts here on the forum and then any fresh links to new content or vids, then on to the game.

Again thanks to you all!

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I don't really understand how Kutuzov outperforms Flint's 7s longer smoke period with such a negligible speed advantage.

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