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Re: plastic rad fan

To: Max Heim <mvheim@studiolimage.com>
Subject: Re: plastic rad fan
From: "James H. Nazarian, Ph.D." <microdoc@apk.net>
Date: Tue, 03 Jul 2001 21:14:58 -0400
Max Heim wrote:

> <snip> many if not most multi-bladed radiator fans I've seen have asymmetrical
> blades. I don't know the reason, I just imagined it was to avoid harmonic
> vibrations...

If engineers designed the fan it was for noise cancellation of a sort. It 
prevents
harmonics, resonance, drumming... If Lucas designed the fan, it was a screw up 
;^)

Jim
microdoc@apk.net
1999 BMW R1100RT Very Black... of course
BMW RA #25289 MOA #89329
1972 Suzuki TS185 Dual Sport, Very sort of orange. For Sale
2000 Audi A4 Quattro Avant Very Silver
1960 MGA 1600 Very Red
1974 MGB-GT Damask Red (Very Burgundy)

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