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On 23 Dec 2002 at 22:22, Dave Hall wrote: > In the UK we usually don't have fresh-air fans, but the air comes in pretty fast > if you're on the highway - it'll blow small seeds and debris into the interior > no problem. I think that area is a high-pressure one. If anything I suspect > the airflow over the screen would be at lower pressure as it is flowing up and > across the screen, and it wouldn't do that without a pressure gradient, would > it? What I've heard is that the air tends to "pile up" there because it gets "trapped" in front of the winshield. This creates a high pressure area at the bottom of the windshield. Of course this would be completely different if the body of the car just came straight back behind the hood/bonnet instead of rising suddenly upward in the form of the windshield. I've been trying to remember what raindrops do on the windshield when driving at speed. I know that above halfway, they clearly get pushed upwards, but I seem to remember that in the bottommost area they tend to sit stationary, as if there is not nearly so much airflow there, except at the sides, of course. Anyone else remember? -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/