Quote:
Originally Posted by JulianEdgar
Then you have some big problems with your measurement of aero drag changes, don't you?
Katz lists changes in drag windows up/down for a variety of car shapes. In all cases, it's pretty major.
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No my testing works fine to show the differences to 0.6% accuracy easy, fast and reliable enough at least me to trust them.
I just drive my windows up all the time. Lowering them down uses more energy as we're proved and the percentage is shown.