[Trachmyr]

Thanx for your answers, it will help a lot.

(I am making a mod that uses "engines per move" in vechiclesize.txt, this field will be based on tonnage. And as I've found, when selecting Min/Max speeds this is actually selecting # of engines NOT speed, thus I need to have diffrent AI designs for each ship size.)

Oh, one Last thing... Do either of you know exactly what the AI uses Defense ships for?