Originally Posted by
gkoster
Cn = CC *min(100,sp-sr)/sp
Where sp stands for the speed without cargo disk
Where CC stands for the carrying capacity of the cargo disk
Where sr stands for the speed reduction of the cargo disk.
min is a section function for the lowest of the two values, (this because cargo disk limit speeds to 100).
[from earlier post:]Cn is the carying capisity with out cargo disk
if the calculated Cn is higher than your present carrying capacity without cargo disk then it is good to use one if it is lower it is bad to use one.