Has anyone figured out the AA formula yet?

[Brundlefly]

Re: Has anyone figured out the AA formula yet?

Originally posted by korn469
I'm getting ready to mod air units soon and I was wondering if anyone had figured out what the exact AA formula was yet? It'd be a big help to me if somebody had.

Thats easy. The AA formula involves 12 steps..

[Jaybe]

Originally posted by Catt
I will happily post the (annoyingly involved) scenario I've used thus far if others would be willing to run tests of their own

No, please do not post the scenario, Catt. I would rather have the uncertainty as to how AA works for awhile longer.

[Catt]

Originally posted by alexman
Catt, your tests seem to suggest:
[AA rating] / (10*[Air Defense] + [AA rating])

Test 1: 4.76%
Test 2: 16.67%
Test 3: 1.32%
Test 4: 33.33%

Maybe so! I have such a limited number of trials, so it is hard to say -- the deviation in actual verss expected results in Test 2 gives me pause.

I will happily post the (annoyingly involved) scenario I've used thus far if others would be willing to run tests of their own

Catt

[alexman]

Catt, your tests seem to suggest:
[AA rating] / (10*[Air Defense] + [AA rating])

Test 1: 4.76%
Test 2: 16.67%
Test 3: 1.32%
Test 4: 33.33%

[Catt]

Originally posted by Catt


Actually, my speculation is [AA Rating] / [Air Defense * 10], but that is based on very limited trials.

Guess I can rule that one out. Same test as described above, this time with AA value of 5 and Air Defense value of 1. After 367 bombing runs (miskeyed on one bomber), 249 survivors -- an interception rate of 32.15%.

Catt

[alexman]

Would that mean that you have a 100% chance of success with AA = 10*AD? That should be an easy enough test... or not!

[Catt]

Originally posted by korn469
ok from Catt's results it looks like the formula for a single stack is

(air unit's defense/AA rating)/10

Actually, my speculation is [AA Rating] / [Air Defense * 10], but that is based on very limited trials.

Catt

[steven8r]

Ah, thanks for the clarification Korn.

[korn469]

steven8r

fighters vs. other air units does result in a hitpoint loss, whereas with AA units (either land or sea) it results in a simple yes or no situation where the air unit is either intercepted and killed or not

[steven8r]

Originally posted by Catt
....I've never seen an air unit take damage but survive...
Catt

Catt, I've seen many times my fighters' health meter go down after shooting-down bombers. Several times, I've had to take the fighters off of Air Superiority and fortify them for a turn to regain lost hp's (the town had an Airport--otherwise it's just 1 hp per turn). If the fighter gets too low on hp's, the Bomber will shoot it down--I've seen this a couple of times too.

======================================

So far in C3C, I've not had any cities bombed by Bombers, however, I have seen several AI Bombers shot-down over other AI cities.

Just a totally unscientific observation: It seems that more AA units in a tile = better success rate for shooting down enemy plans.

[korn469]

ok from Catt's results it looks like the formula for a single stack is

(air unit's defense/AA rating)/10

[Risa]

OK, now is 10 stacks of 2 Flaks in each, and finally we can see some difference:
14,18,18,18,17,19,18,19,18,16,survival rate is 87.5%.

And here is bomber vs 2 stacks of 10 Modern SAM in each: 7,10,10,6,8,9,10,9,11,11, survival rate is 45.5%.

[Catt]

I tested fighters a long time ago (civ vanilla), and stacking fighters in a city did not increase the chances of interception, it just increased the number of potential interceptions per turn to equal the number of fighters. That function was changed at some point, because in PTW (and Conquests), stacking fighters actually increases the interception rate. For flak, I did a quick test with 50 unmodded flak in a tile, and 5 unmodded bombers. Bombarding the stack produced 3 or 4 lost bombers in each of the four or five reloads -- a significantly higher loss rate than I experienced attacking tiles with one flak and one bomber for each engagement.

I am hopeful that someone who deciphers the one vs. one forumla can easily extrapolate to a number of AA defenders.

Catt

[Risa]

Now 4 stacks of 5 Flaks in each:
15,15,16,14,14,16,10,13,12,14, survival rate is 69.5%. Still no big difference. I'll test 10 stacks of 2 Flaks in each tonight.

BTW, these result means Flak is not much useful. Fighters are far better than them.

[korn469]

from what i read in a chat

the AA number goes against the attacking air unit's defense number, and it does indeed increase as more AA units are in the stack

i may create an AA test scenario