Hey Colin,
 
Being a little harsh on us Colonials aren't you?  We all said that JC should 
not use dynel, but rather fiberglass cloth.  We said that there are more modern 
ways to do the foam and glass construction, and he should investigate those 
ways.  Also that carbon was more expensive and not worth the trouble.
 
I certainly hope that all those KRs that are presently flying aren't just  
winged piles of "rubbish"!
 
Cheers!
 
Bob

> On 11/26/2024 1:27 PM EST colin hales via KRnet <krnet@list.krnet.org> wrote:
>  
>  
> Hi there Jean-Charles.
>  
> No one would build a KR aircraft just like or as close to the original Ken 
> Rand aircraft,  these days. The materials available now are so much better. 
>  
> The glass cloth we now use is a German cloth called 92/125 for most with the 
> lighter  92/110. We use resin L295
> Blue Styrofoam not eurothane foam stuck together with A+B liquid expanding 
> foam. 
>  
> The glass fibre lay up has changed. We now have no joins in the cloth on the 
> leaving edge or main spar 
>  
> You don't need carbon at all,  there is not enough cloth to make a difference 
> with just the one layer of 92/125 in most places and just two on the D box. 
>  
> All the infotainment is available.  The weight saving with the new materials 
> and techniques is massive.  Don't listen to all of the Americans, there is a 
> lot of good advice from them, but a lot of just rubbish as well.
>  
> Any questions,  just ask myself.  I wouldn't broadcast on KRNET, you will get 
> some good advice, but masses of bad advice. 
>  
> Cheers Colin
>  
>  
>  
> Sent from Outlook for Android https://aka.ms/AAb9ysg
> 
> 
> ---------------------------------------------
> From: KRnet <krnet-boun...@list.krnet.org> on behalf of JC via KRnet 
> <krnet@list.krnet.org>
> Sent: Tuesday, November 26, 2024 6:03:32 pm
> To: krnet@list.krnet.org <krnet@list.krnet.org>
> Cc: JC <flyingforfun2...@gmail.com>
> Subject: Re: KRnet> Bad news !!
> 
> Hi Larry
> as I said to Bob I will use the "Rutan" fiber glass cloth even if I'm still 
> tempted by carbon fiber especially if the weight gain is significant. Weight 
> will be a constant concern during construction. For the moment as I know 
> nothing about composite the opinion of those who know will the law to me
> 
> JC
> 
> Jean-Charles Fenez
> La Rochelle - France
> 
> Le 26/11/2024 à 14:48, Larry Flesner via KRnet a écrit :
> 
> > On 11/26/2024 5:11 AM, JC via KRnet wrote:
> > 
> > > (I will have to find equivalents for the dynel, for example, which is 
> > > completely impossible to find in France).
> > > 
> > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > 
> > Try contacting    https://www.aircraftspruce.eu/ 
> > https://www.aircraftspruce.eu/
> > 
> > This looks like the same item they list on the USA site as "kr cloth".
> > 
> > https://www.aircraftspruce.eu/std-fiberglass-cloth--7533-60.htm
> > 
> > https://www.aircraftspruce.com/catalog/cmpages/7533.php?clickkey=512773
> > 
> > Try to resist the urge to use carbon fiber.  Much more expensive and 
> > totally unnecessary.
> > 
> > Larry Flesner
> > 
> > 
> 
> --
> KRnet mailing list
> KRnet@list.krnet.org
> https://list.krnet.org/mailman/listinfo/krnet
> 
-- 
KRnet mailing list
KRnet@list.krnet.org
https://list.krnet.org/mailman/listinfo/krnet

Reply via email to