Old forum - Memories - USS Atlanta Anti-Aircraft ship setup - An old study

[Tpaktop2_1 NA]

Posted By Tpaktop2_1, February 12, 2016 in American Cruisers

I guess it has been some time since I played the Atlanta with all the wonderful ships in my port. So I decided to take her out for a spin. I have the Atlanta rigged for AA defense. I ran into Ryujo aircraft in a match and encountered three of the enemy's Dive bomber squadrons. They all flew over me going towards my friendly BB. I enabled the defensive fire and all I got was one aircraft shot down. What? :amazed: What did WG do to the ship? In my view I thought the Atlanta would be like this film is some way.

That was when I then started studying and reading other WoWS threads on the matter.on Anti-Aircraft.

http://forum.worldofwarships.com/index.php?/topic/68153-the-true-aa-power-of-cruisers/page__pid__1673996#entry1673996
http://forum.worldofwarships.com/index.php?/topic/67827-atlanta-aaa-nerfed/

http://wiki.wargaming.net/en/Aerial_Combat_(WoWS)

It was the last web link that keyed me in on the Atlanta AA. What I was doing in the match was shooting at a Myoko will the enemy DBs were flying overhead. I did not have the main guns for AA since they were tied up in surface combat. Even so if my main 127mm guns were available, I would not be effective since I was not focus firing too. I could not hit all three DB squadrons at once.

I dug further and this is what I found for the full effect for the Atlanta's AA setup.

Below is an example of a Stock Atlanta AA configuration:

Here is a chart noting improvements by enhancements to the Atlanta

 

Note: the bold enlarge font is the improvement

 

Gun mount	Quantity	Std. DPS	Range Band DPS Total	Range	Notes	Example Plane: Aichi D3A1 Dive Bomber
					Basic setup	(DPS/aircraft survivability rating)=Shot down Percentage/per second %
127mm/38 Mk2 Mod.12	8 X 2	53	53	5 Km		53/1190 = 4.5%/per second
28mm/75 Mk2 Mod.2	4 X 4	35	88	2.5 Km		88/1190 = 7.3%/per second
Oerlikon 20mm Mk4	8 x 1	44	132	2.1 Km		132/1190 = 11.09%/per second
		CRTL +LMB DPS			+Advance aiming	(DPS/aircraft survivability rating)+Advance Aim=Shot down Percentage/per second
127mm/38 Mk2 Mod.12	8 X 2	79.5	79.5	5 Km		79.5/1190 = 6.6%/per second
28mm/75 Mk2 Mod.2	4 X 4	52.5	132	2.5 Km		132/1190 = 11.09%/per second
Oerlikon 20mm Mk4	8 x 1	66	198	2.1 Km		198/1190 = 16.63%/per second
		CRTL +LMB DPS, AA Guns Modification 2			+Equipment upgrade	(DPS/aircraft survivability rating) + Advance Aim=Shot down Percentage/per second
127mm/38 Mk2 Mod.12	8 X 2	79.5	79.5	6 Km		79.5/1190 = 6.6%/per second
28mm/75 Mk2 Mod.2	4 X 4	52.5	132	3 Km		132/1190 = 11.09%/per second
Oerlikon 20mm Mk4	8 x 1	66	198	2.52 Km		198/1190 = 16.63%/per second
		CRTL +LMB DPS, AA GM 2, Basic Firing Training			+Commander skill 1	(DPS/aircraft survivability rating) =Shot down Percentage/per second
127mm/38 Mk2 Mod.12	8 X 2	89.5	89.5	6 Km		(89.5/1190) = 7.52%/per second
28mm/75 Mk2 Mod.2	4 X 4	62.5	155	3 Km		(155/1190) = 13.03%/per second
Oerlikon 20mm Mk4	8 x 1	76	231	2.52 Km		(231/1190) = 19.41%/per second
		CRTL +LMB DPS, AA GM2, BFT, Advanced Firing Training			+Commander skill 4	(DPS/aircraft survivability rating) =Shot down Percentage/per second
127mm/38 Mk2 Mod.12	8 X 2	89.5	89.5	7.2 Km		(89.5/1190) = 7.52%/per second
28mm/75 Mk2 Mod.2	4 X 4	65.5	155	3.6 Km		(155/1190) = 13.03%/per second
Oerlikon 20mm Mk4	8 x 1	76	231	3.02 Km		(231/1190) = 19.41%/per second
		CRTL +LMB DPS, AA GM 2, BFT, AFT, Signal Flags			+Signal Flags	(DPS/aircraft survivability rating)=Shotdown Percentage/per second
127mm/38 Mk2 Mod.12	8 X 2	99.5	99.5	7.2 Km		(99.5/1190) = 8.32%/per second
28mm/75 Mk2 Mod.2	4 X 4	75.5	175	3.6 Km		(175/1190) = 14.71%/per second
Oerlikon 20mm Mk4	8 x 1	86	261	3.02 Km		(261/1190) = 21.93%/per second

 

Update: Developers information based in the game and on the wikipedia page is misleading. Changes are marked in purple for corrections. Ranges are estimate based on available information.  This is a rough guide line.

Update: Developers information based in the game and on the wikipedia page is misleading. Changes are marked in purple for corrections. Ranges are estimate based on available information.  This is a rough guide line.

You can see by the last modifications the Atlanta will truly be a sky sweeper. You will have to focus fire with the Atlanta to be effective in AA.
 

My Atlanta ship AA configuration suggestions

Consumables
Defensive AA fire II

Comander's Skills
Basic Firing Training              -10% to reload time of guns with a caliber of up to 155 mm.
                                              +10% to AA efficiency (accuracy).

Advanced Firing Training      +20% to firing range of guns with caliber of up to 155 mm.
                                              +20% to AA defense firing range.

Upgrades

First two slots
AA Guns Modification 1     125000 credits     Increases survivability of AA mounts: +20% to AA mount survivability
 
AA Guns Modification 2     500000 credits    Extends firing range of AA mounts: +20% to AA mount maximum firing range

 

Last two slots your choice

Signal Flags

Flag Name        Related to    Flag's Action
Juliet Charlie        Detonation    -100% chance of detonation
November Foxtrot    High Caliber    -5% reload of consumables
Zulu            First Blood    +20% credits
India Bravo Terrathree    It's Just a Flesh Wound    -5% post battle repair costs
Bravo Echo Selteseven    Clear Sky     +10% to efficiency of self-Defense armament for aircraft with rear gunners
+10% to AA mount effectiveness
 

In addition I found a few other WoWS Atlanta sources.

Sources

How to play Atlanta Videos

So next time there will be an improvement in my game play with the Atlanta. I thought I would pass the information on to our community.

 

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[NOOBS]
OnABoat
Petty Officer
92 posts
2,703 battles
Report post #2 
Posted February 12, 2016
Nice post

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10T0nHammer
Rear Admiral
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Report post #3 
Posted February 12, 2016
Atlanta has never had good AA IMO. The guns are simply too weak to be considered good. For a perfect example, statistically, the Atlanta shoots down 1.9 planes a game, the Myoko, which its inferior AA, shoots down 1.5....
 

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 On 2/12/2016 at 5:27 PM, 10T0nHammer said:
Atlanta has never had good AA IMO. The guns are simply too weak to be considered good. For a perfect example, statistically, the Atlanta shoots down 1.9 planes a game, the Myoko, which its inferior AA, shoots down 1.5....
 

 

Report post #4 
Posted February 12, 2016 (edited)
[TFK]
Tpaktop2_1
Lieutenant Commander
2,554 posts
25,769 battles
Location: 38.873010,-77.007433

The question with the stats are the WoWS players using the primary guns for surface actions instead of AA. If players get educated on how the ship is suppose to work with AA, the stats would change.
 

Update: for stats I show the following

Plane Kill rates
Atlanta - 2.42
Myoko -  1.89
 

Source:

http://warshipstats.com/analytics/

Edited February 12, 2016 by Tpaktop2_1

 

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[RST]
Fedge_123
Ensign
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Location: Lost at Sea
    
Report post #5 
Posted February 12, 2016 (edited)
I am configured similar to what the original post says, and average 2.15 planes destroyed in my Atlanta.  

I even think that number is misleading, as I believe that also includes games where there are no planes, so considering that, the average should be even higher.

My high is 21 planes destroyed in a single match.  If there are planes, I often shoot down a dozen.

Edited February 12, 2016 by Fedge_123

 

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 On 2/12/2016 at 5:46 PM, Tpaktop2_1 said:

The question with the stats are the WoWS players using the primary guns for surface actions instead of AA. If players get educated on how the ship is suppose to work with AA, the stats would change.

Update: for stats I show the following

Plane Kill rates
Atlanta - 2.42
Myoko -  1.89

Source: http://warshipstats.com/analytics/

10T0nHammer
Rear Admiral
7,344 posts
4,169 battles
Report post #6 
Posted February 12, 2016

More reliable source:

     Atlanta    7    Cruiser    USA    33,768    48%    22,127    0.6    1.8
     Myoko    7    Cruiser    Japan    43,967    52%    34,893    0.8    1.4
 

In fact, the Cleveland fairs better than the Atlanta:

     Cleveland    6    Cruiser    USA    189,032    52%    29,887    0.8    2.2
 

Source: http://warships.today using 2 week stats filter

 

Atlanta just not very good at AA. The only thing it gets is the unlimited AA Defensive Fire.

 

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thegamefilmguruman
Lieutenant Commander
2,379 posts
17,500 battles
Report post #7 
Posted February 12, 2016
Looking at 3.60 plane kills on average in Atlanta and 2.22 in my myoko, apparently.

 

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xxOn 2/12/2016 at 6:03 PM, thegamefilmguruman said:
Looking at 3.60 plane kills on average in Atlanta and 2.22 in my myoko, apparently.

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10T0nHammer
Rear Admiral
10T0nHammer
Members
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Report post #8 
Posted February 12, 2016

Problem here is 2 fold, 1 using your own personal stats is not a good measure. Unless you have like 10k battles in each ship, you will not get reliable numbers. and 2, shooting down 1 extra plane a game for something that is a dedicated AA boat is actually really bad lol

 

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10T0nHammer
Rear Admiral
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Report post #9 
Posted February 12, 2016
Apologies, I am pooping all over your rather well put together post. I might be a little to pragmatic when it comes to the Atlanta, it has failed me even when it comes to keeping allied boats safe from CVs...
 

 

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On 2/12/2016 at 6:07 PM, 10T0nHammer said:

Problem here is 2 fold, 1 using your own personal stats is not a good measure. Unless you have like 10k battles in each ship, you will not get reliable numbers. and 2, shooting down 1 extra plane a game for something that is a dedicated AA boat is actually really bad lol

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thegamefilmguruman
Lieutenant Commander
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Report post #10 
Posted February 12, 2016

True enough. 

 

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[MTLRN]
WKMitchell
Petty Officer
67 posts
5,333 battles

Posted February 12, 2016 (edited)

quick point your math is wrong once you add BFT as it only adds +10% damage to the AA DPS not 10% more chance to knock down planes.  Also the range upgrades make a huge difference in area coverage stock you cover around 19.5km of area with AFT and AAGM 2 you cover 38.5km.

 

		CRTL +LMB DPS, AA GM 2, Basic Firing Training			+Commander skill 1	((DPSx1.1)/aircraft survivability rating)=Shot down Percentage/per second
127mm/38 Mk2 Mod.12	8 X 2	79.5	79.5	6 Km		(87.45/1190) = 7.34%/per second
28mm/75 Mk2 Mod.2	4 X 4	52.5	132	3 Km		(145.2/1190) = 12.2%/per second
Oerlikon 20mm Mk4	8 x 1	66	198	2.52 Km		(217.8/1190) = 18.3%/per second

Edited February 12, 2016 by WKMitchell

 

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On 2/12/2016 at 6:12 PM, Seraphil said:
Clevelands see more enemy carriers just by virtue of being tier 6, so it can encounter them in the more populated tier 5/6 than the tier 7 Atlanta that can often land in tier 8/9 games where the carrier population is quite scarce.

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10T0nHammer
Rear Admiral
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Report post #13 
Posted February 12, 2016 (edited)

It would make sense if there was a higher plane down count for the Aoba as well but its the same as the Myoko:

Aoba

6

Cruiser

Japan

55,892

51%

27,468

0.7

1.4

 

Or lower for New Orleans and Mikhail:

	Mikhail Kutuzov	8	Cruiser	USSR	22,166	50%	32,857	0.7	2.9
	New Orleans	8	Cruiser	USA	21,052	49%	29,920	0.6	1.8

 

Edited February 12, 2016 by 10T0nHammer

 

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On 2/12/2016 at 5:58 PM, 10T0nHammer said:
 
In fact, the Cleveland fairs better than the Atlanta:

Cleveland    6    Cruiser    USA    189,032    52%    29,887    0.8    2.2
 
Source: http://warships.today using 2 week stats filter

Atlanta just not very good at AA. The only thing it gets is the unlimited AA Defensive Fire.

 

[TFK]
Tpaktop2_1
Lieutenant Commander
2,554 posts
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Location: 38.873010,-77.007433
Report post #14 
Posted February 12, 2016 (edited)

Your are talking apples to oranges on the comparison. The Atlanta has the 28mm/75 Mk2 Mod.2 where the Cleveland has the 40 mm Bofors and better AA gunnery setup.

 

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 On 2/12/2016 at 6:11 PM, WKMitchell said:
quick point your math is wrong once you add BFT as it only adds +10% damage to the AA DPS not 10% more chance to knock down planes.  Also the range upgrades make a huge difference in area coverage stock you cover around 19.5km of area with AFT and AAGM 2 you cover 38.5km.

 

          CRTL +LMB DPS, AA GM 2, Basic Firing Training              +Commander skill 1    ((DPSx1.1)/aircraft survivability rating)=Shot down Percentage/per second
127mm/38 Mk2 Mod.12    8 X 2    79.5    79.5    6 Km         (87.45/1190) = 7.34%/per second
28mm/75 Mk2 Mod.2    4 X 4    52.5    132    3 Km         (145.2/1190) = 12.2%/per second
Oerlikon 20mm Mk4    8 x 1    66    198    2.52 Km         (217.8/1190) = 18.3%/per second

 

[TFK]
Tpaktop2_1
Lieutenant Commander
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Location: 38.873010,-77.007433
Report post #14 
Posted February 12, 2016 (edited)

Where did I read that wrong? I thought it was accuracy not for the DPS and the range. Are you sure? WoWS Wiki says +10% to AA efficiency (accuracy). And I thought the surface shooting was 11.2 KM in WoWS. How does the AA range further?

Edited February 12, 2016 by Tpaktop2_1

 

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WKMitchell
Petty Officer
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Report post #15 
Posted February 12, 2016
Efficiency is a word that they use that is confusing but awhile back was answered by Devs to mean DPS so +10% efficiency is +10% more dps.  I am not talking Range I am talking Area as 5km Range around your ship gives you a circular Area of 19.5km and 7km range with upgrades gives you 38.5km Area around your ship that the AA effects.  Make more sense now?

 

 

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Tpaktop2_1
Lieutenant Commander
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Location: 38.873010,-77.007433
Report post #18 
Posted February 13, 2016
Update news: The Atlanta is getting a buff in the 5.3 update on the AA.

 

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 Some information about Atlanta (mostly stats). Nothing really new though.

The Atlanta is a difficult ship to play and doesn’t allow any mistakes. It’s very skill-dependent, compared to Murmansk and Atago (I won’t call anyone bad [at the game] but playing to the advantage of the ship is quite hard). We have no plans to change Atlanta’s stats yet, but we’re looking at different ways to improve it (consumables, upgrades, etc.)

Regarding its AA, it will be even better as of patch 0.5.3.

According to current stats, here are some interesting facts:

Atlanta’s win ratio is higher than York’s and Pensacola’s, but lower than Myoko’s. Average damage is about 2k lower than other cruisers, which puts it in last place in this regard. AA is nearly as strong as MK’s. Winnings are about a third higher than other tier 7 cruisers.
 

Source: http://thearmoredpatrol.com/2016/02/12/wows-qa-12th-february-2016/

 

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marcmad
Warrant Officer
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Report post #19 
Posted February 14, 2016
I'm a CV player and last time I checked Atlanta were sweeping planes out of the sky but only if they had defensive activated. otherwise their AA is not that great and i can torp them without much trouble (unless a certain Russian cruiser...). The strength of the Atlanta lies in his long range gun so if you lose them by He shells you are gonna lose a lot of AA