Quote:
Originally Posted by AeroMcAeroFace
Exactly, at 1mph, almost all drag is rolling resistance. This statement is of no use.
"No one has been able to show any data on BEV cooling drag as a percentage of total drag that rebuts what I wrote in the first post."
Julian, while I agree, it may be worth specifying aerodynamic drag, because total drag is both linear (rolling resistance) and exponential (aerodynamic).
aerohead is correct when he writes that at some velocity 1.4% of total drag is cooling, however that includes rolling resistance. Ignoring rolling resistance is essential to get correct numbers.
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Yeah, I always underestimate some people’s ability to muddy the water. I have always been talking about cooling drag as a percentage of total aerodynamic drag.