KRnetters:

This sounds analogous to the reason golf balls are "Dimpled".

Don Lively
  ------------------------------------------------------------------------

"Hennie van Rooyen [HQP]" wrote:

> Hi all,
>
> Just my 2 cents on this subject. There's a lot of info on the net on this so 
> I'll not even try to elaborate.
>
> Air over air causes a lot less friction than air over metal, fiber glass or 
> whatever. Therefore a very slight rough surface on i.e. a wing (pinholes) 
> will produce less friction than a very smooth wing surface and therefore also 
> higher top speed.
>
> You actually want dull surfaces for more speed as bright smooth surfaces are 
> purely for appeal and not for speed. The air clings to the surface and this 
> is the exact opposite of what you want.
>
> I'm convinced that if you take sandpaper and apply to your KR giving it a 
> dull, non shiny surface (not nice to look at), you'll get the speed increase 
> you're after.
>
> Regards,
> Hennie
>
> -----Original Message-----
> From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
> Behalf Of Frank Ross
> Sent: Thursday, April 13, 2006 10:13 AM
> To: KRnet
> Subject: RE: KR> Armoural
>
> I know there aren't many things funnier than putting a good coat of  Armor 
> All on the seat of a dirt-bike right before a steep hill-climb  and watching 
> the rider try to stay on the seat...
>
>
> Brian Kraut <brian.kr...@engalt.com> wrote:  Did you scrape an inch of bugs 
> off the leading edge before you put that
> Armor All on?
>
> I do know that fiberglass gliders fly considerably better when they are
> clean and waxed, but they have a whole lot more wetted area than a KR and
> competition gliders likely have much more critical airfoils than the KR
> does.
>
> Brian Kraut
> Engineering Alternatives, Inc.
> www.engalt.com
>
>
> ---------------------------------
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