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Date:         Sat, 3 Nov 2018 09:32:01 -0700
Reply-To:     Dan N <dn92610@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dan N <dn92610@GMAIL.COM>
Subject:      Re: Aerodynamics?
Comments: To: Don Hanson <dhanson928@gmail.com>
In-Reply-To:  <CAHTkEuKL=8fBWOJOvWUHS-MHSqJSL4wN0=s-G_dRFW0Ta-4SOQ@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"

I am not an acoustic expert but I do believe in resonance as in musical instruments and drums. I'd think most of the noises came from the resonance of the wind on the doors and side panels. Knock or tap on a drum or an acoustic guitar and you will hear noise or sound.. On a vanagon they put some sort of sound barrier on the roof but why not inside the door and side panels? The doors and side panel are just large cavities and when wind hit them they resonate and amplify the noise for us t hear.


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