Today’s post is a guest piece from Xola Zuni. He’s been researching the mechanics of overheating and asked me if I’d share his results with you. So, here they are.
Greetings Space Warriors, Xola Zuni speaking. First of all, many thanks to Wensley to give me the opportunity to publish this article on his blog!
I did some research on Overheating, especially on how you can prolong it’s duration. The
short and simple result: You can overload your modules longer at no costs if your ship is properly fitted!
This article will explain how you can do it and how the result should look like.
A Minmatar assault frigate, the Wolf, was mainly used for these studies. 4 different high slot
fittings were use, each of those setups were tested 6 times, equaling in 24 runs total. The
200 mm ACs were overloaded and then activated untill they burnt out. As soon as the guns
went offline the rounds fired per each gun were counted and then compared with the other
results:

Shown in the graph below is the average of rounds shot per gun after 6 runs with each
setup.

The green and the yellow setups do a lot better than the other two. The best fit (yellow;
33,5 rounds avg) allows to get a bit more than 4 more shots out compared to the worst
(blue; 29,33 rounds avg) before the ACs die. That’s an improvement of almost 15
percentage.
The best fit has a offlined salvager in the fifth slot and in 5 out of 6 runs produced the
same result (33 rounds shot per gun). It also produced the best single result with 36
rounds fired.
The results of the two fits with an empty fifth slot (green & red) fluctuated a lot more than
those with a fitted fifth slot.
Although the big difference is not made by the fact that the fifth slot is fitted or not, it depends
upon how the ACs are arranged. The fits where the ACs are separated by the fifth slot
are both superior to the conventional “all guns to one side”-fittings.
Explain these fittings again…
The Wolf has 5 high slots and you can fit them differently. Mostly it is fitted:
AC; AC; AC; AC; (somethingelse or empty)
Thats the red/blue fitting in the graph: 4xAC+Salvager and 4xAC/empty
To get the improved results, the Wolf has been fitted:
AC;AC;(empty/smt else) AC; AC
Represented in the graph as 2AC+Salvager+2AC (yellow) and 2AC+empty+2AC (green).
Important sidenote: You can still group all 4 ACs together, grouping does not have impact
on the results.
Wish or Witchcraft? How does that work?
As I did not make the game nor did I check what the code looks like, I only can assume
how it works. But this assumption should be sound.
The first thing to know is that not only the overheated module takes damage, it also spreads
heat emissions onto the neighbouring modules. The closer they are, the more damage will
be applied. The next module in line gets the most emissions, the second in line the second most etc.
Now let´s have a close look how the heat is spread on a 4AC+ and on a 2AC+2AC Wolf


On the 4AC+ setup the heat sink slot only has to deal with one major heat source. This is
good for the heat sink slot but not so good for your guns, they will burn out faster as they do
have to buffer more heat emissions. Compared to the 2AC+2AC fit, the heat sink slot has
to buffer two major heat emissions. It will burn out faster, but the guns won´t. The same
rule applies also to the second, third and fourth in line heat emission.
So on the 2AC+2AC Wolf, the heat emissions are spread more equally on your guns and
the heat sink slot can function as a proper heat buffer.
Conclusion:
The further away the overloaded modules are, the longer they will last.
Footnotes:
This rule does/should also apply on your mid and low slots and also on other shiptypes. I
did some tests on a Hurricane (highs and mids) and the first results were promising and
confirming the results I have got with my Wolf. Unfortunately, the repair costs stopped that
project from being finalised.
If you have some spare ISKies laying around, send me some and note as reason “Xola
should last longer”. I will just buy one space tonic out of your isk. The rest will be spent on
my research projects. Promise!
Here are my skills regarding RoF and thermodynamics as they havea major impact on the results I have received:
- Gunnery 5
- Rapid Firing 4
- Thermodynamics 4
The wolf was fitted with 4 x 200 mm ACs and 1 x Gyrostabilizer.
So, thats it, thanks for your attention and kudos to Wensley to let me share my research
results on his blog!
Xola Zuni
Thanks Xola for taking the time to do this. I had been meaning to write about overheating for a little while. There is a thread on Failheap Challenge (the phoenix that rose from the ashes of the now defunct Scrapheap Challenge) that discusses this exact topic. The use of heat sink modules has been well known for a long while but it was always assumed that heat wrapped around the rack. Xola’s experiments and the ones detailed on FHC both show that this is not the case and you should arrange your modules accordingly.