Bill, If you still have the spring it might be worth the effort to reheat it to 200F. and re compress it in your wooden jig. Just a thought. Mick m...@dcn2.net
zorc...@aol.com wrote: > > >I built a carbon fiber tail spring for my KR-2 back in 1985 or so. It >weighed about 1/4 what the steel part weighed. It was 26 layers of >bi-directional >cloth, with epoxy resin, layed up over a two-by-four cut with a bandsaw to >the desired bend. ( I put an "s" bend in the tailspring to raise the nose >slightly, and provide more tailspring to rudder clearance) > > The only flaw in the final product, was that the TGT, or transition glass >temperature was low (room temp), as I did not heat cure it. When I set the >airframe outside in the sun, that nice black carbon fibre part heated up, and >since the tailwheel was sitting sideways for a few hours, it took a permanent >set, twisted that is.... > >It seemed to have the right "springiness" that I wanted, but it was never >flown, so durability and reliability is up to you. > >Bill Zorc >KR-2S project started in 1974.... > > >_______________________________________ >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 > > > >
