Hello Hennie So if you are correct Mark J and Mark L's airplanes will slow down when painted ? Guess that dependa on the quaility of the job. T-38's were slick but F-4's , 104's , 105's, SR-71's or the U-2 wasn't.
Steve Bray Jackson, Tennessee >From: "Hennie van Rooyen [HQP]" <hennie.vanroo...@kumbaresources.com> >Reply-To: KRnet <kr...@mylist.net> >To: "KRnet" <kr...@mylist.net> >Subject: RE: KR> Armoural >Date: Thu, 13 Apr 2006 11:26:29 +0200 > > >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 > > > >--------------------------------- >How low will we go? Check out Yahoo! Messenger's low PC-to-Phone call >rates. >_______________________________________ >Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp >to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net >please see other KRnet info at http://www.krnet.org/info.html > >----------------------------------------------------------------------------------------- >This e-mail is confidential and is for the addressee only. >Please refer to http://www.kumbaresources.com/email-disclaimer for >important disclaimers. >----------------------------------------------------------------------------------------- > >_______________________________________ >Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp >to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net >please see other KRnet info at http://www.krnet.org/info.html
