Not linearly, but with square of speed (as my calculatons state), as in those calculations. 16% redusction in speed (30 mph at 180 mph) would reduce side forces by 30% - i calculated that from my head on the fly, so it's not really exact, just to show approx numbers ...
It just happoen to look simple linear in my 1st post, it is not, on one sied are hard numbers (mph), on other percentage ...
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