thanks to all for reports
Diesel John, I am sorry, I do not have remeber to use the smiles
Now, which councils in order to improve the precision of this tool?
I find this chart on the internet.
By
fabrio
I is evidents, that for speed advanced of 80/90Km/h the rolling resistance, isnt' constant, and this, does not help us in the reserce of more precision for to calculate the Cd.
I think , that a bigger speed it is possible a more precision because smaller superimposition of Cd and RR is avaible.
But now on light of chart over, we are forced to remain under the 90Km/h