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/ 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
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