Re: Q1 canard BLOO_BLO5
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damiantwinsport@...
Matt, in reviewing plans for Q2 -200 the spar is joined at Bloo and only extends to BL 05 either side. IMHO and observations of fractured spars the fracture either occurs at Bl11 t0 BL16 and just outside fuselage at about BL22. That outside area is a void between fuselage and the start of control surface box.Once again IMHO IF one were to extend splice area reinforcement from BL00 to BL24 this type of failure under normal to heavy use could be avoided. I believe JIm Patillo was the one who detected early a failure starting at about BL15 and affected a repair on and around this area and has plenty of time since with no apparent problems.
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Regards, Damian Gregory N8427 Q200
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From: Peter Harris <peterjfharris@...> To: Q-LIST@... Sent: Sun, 20 Nov 2005 13:58:19 +1000 Subject: Re: [Q-LIST] Re: Q1 canard Matt based on the Q2 construction each spar extends from BL00 to the canard wingtip. The spars are shaped and bonded at BL00. Also tapered glass spar caps are fitted top and bottom at BL00 extending out about 1ft each side. As well UNI glass plies are used at the hull exit to strengthen against compression of the hull. These details are covered in the Q2 plans which you can access from the web link. I am assuming a similar plan is used for the Q1. Peter ----- Original Message ----- From: matt Hughes To: Q-LIST@... Sent: Monday, November 21, 2005 5:53 AM Subject: [Q-LIST] Re: Q1 canard Doug, Peter, Leon I am looking at the option of carbon fiber spars for a Q1. I read the resources links page on the QBA web page. The carbon fiber spars sound great. One question. The spars only extend from BL10 inboard out along the canard from the tip working its way back..correct. I am concerned about the strength at BL10 - the center section and where BL10 inboard are connected. Isn't this where most of the fatigue and stress is showing. It seems that the rest of the canard has been strengthend but not this joint. Leon i was not able to get the cad drawings to work but i did read the instructions. Thanks for all of your information and interest. I am finding this build very intersting and kowlegable. --------------------------------- Find your next car at Yahoo! Canada Autos Quickie Builders Association WEB site http://www.quickiebuilders.org SPONSORED LINKS Aviation maintenance Aviation maintenance training Aviation maintenance schools Aviation maintenance schools Aviation Aviation art ------------------------------------------------------------------------------ YAHOO! GROUPS LINKS a.. Visit your group "Q-LIST" on the web. b.. To unsubscribe from this group, send an email to: Q-LIST-unsubscribe@... c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. ------------------------------------------------------------------------------ Quickie Builders Association WEB site http://www.quickiebuilders.org Yahoo! Groups Links
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