The way I use it is to look up a ship that you know the size of, the fca as an example,
and scale the ship you want to change to it. The fca is 8.47. Making a vessel 12.70
would make the fca 2/3 the size of your resized model. If I'm understanding the file
correctly.
I've used it in EAW to make Fed ff's the size of PFs to use stock models for
Federation Thunderbolt PFs. I just looked up the size of the Lyran PF in the model.siz
file, copied the Fed ff and renamed the copied folder and .mod file and the brk.mod, then
put the location of the model in the model.siz file.
Example: ASSETS\MODELS\FPF\FPF.MOD 1.67
ASSETS\MODELS\FPF\FPF_BRK.MOD 1.67
The result is a Federation PF model. The file is case sensitive and you have to use upper
case. I hope you find this as usefull as I have, since I can't model a lick