I have built 9 aircraft over the years, successfully using Spruce, Fir, mahogany, and pine. My primary concern was not species but specific gravity (weight) and Static bending (modulus of elasticity. Ash, Oak, maple cherry, poplar et al would have been structurally fine but heavier and more difficult to bend. I have cheated occasionally and built up canopy frames with laminations of oak or ash. I do not use sitka spruce except on my musical instruments (I am/was a Luthier). My aircraft wood comes from local lumber mills, choosing close and straight grains. Sent from Mail for Windows 10 From: john mitchell via KRnet Hi KR members I have used Alaskan yellow cedar for sailboat mast 40' mast about 5" dia at foot.It was much more flexible than spruce even though modulus of elasticity looked comparable.I glued it with west marine epoxy.Yellow cedar dust is toxic to breath also.thank you John working on a KR2 On Tue, Jan 5, 2021 at 7:41 PM Mark Langford via KRnet <krnet@list.krnet.org> wrote: > I've never looked into ash before, so you've already done more research > than I have on the matter. I don't know of anybody that's used anything > other than spruce on a KR fuselage, although some use heavier birch > plywood for the skin than the more expensive mahogany. Given the high > prices, others have likely done similar research. Ask on krnet and > somebody will likely have some input. Send KRnet email to > krnet@list.krnet.org . > > Mark Langford > m...@n56ml.com > http://www.n56ml.com > Huntsville, AL > > On 1/5/2021 5:01 PM, costewart23 wrote: > > Mark, Good evening, I cant believe that Sitka is so high now and ASSC > > shipping rates are more than the wood! > > > > What your thoughts on Ash? I've been looking at Wooden Aviation that > > sells select ash, and maybe a good alternative > > > > > > Thanks, Chris > > > > > > > > Sent from my U.S.Cellular© Smartphone > > > > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org |
_______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
