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Old 11-10-2021, 11:33 AM   #3874 (permalink)
kach22i
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Quote:
Originally Posted by Piotrsko View Post
Afaik, curved windshields arent necessary if you do the edge treatments on the A pillar correctly
The mathematical formula Aerohead posted about a decade ago in a VW van thread involved knowing the "frontal area" but did not account for any rake angle.

As I recall per discussions regarding radius corners on truck boxes (think U-Haul cargo van) 100mm or about 4" was the diminishing returns radius (see chart in link below.)

https://ecomodder.com/forum/showthre...o-38795-3.html


It makes sense that a large vehicle sees benefit with 4" leading edge radius when smaller areas on car windshields are half that on the lowest of CD cars on the market. I mean just look how boxy looking a Prius is.

NOTE: While going between hand sketches and AutoCad I've been using the "draw ellipse" command for front bow/bumper and windshield top/bottom.
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