John--put the .022 on the bottom with CA, then wrap the length with kevlar thread. Warp closely at the root and widen the wraps toward the poly break to maybe 1/4 inch apart. Then CA the thread in place. Makes for a strong spar. A ridge on the wing top is NOT good. Glad you have started the Q. Jim ----- Original Message ----- From: "John Gossett" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, January 03, 2002 8:05 AM Subject: [RCSE] wing building questions.
> Hello All! > > I got to vacuum bag (balsa sheeted) wings over the > holidays and the 7035 HLG wings came out great! Far, > far better than my first 3M77 balsa sheeted wings! > > The other project I am working on is a Quasoar. I > glued in all the wood spars and such, but wanted to > add more strength so I ordered some 1" carbon > laminates to supplement the wood spars. I ordered > (based on articles I have read on the web and in RCSE > archives) two thicknesses of .022" and .044". However, > the .044 is pretty thick! If I were to bag the basla > sheeting over them, I would have a raised ridge on the > wing. So I am considering two choices - use my new > dremel as a router to rout a 1" wide, .044" groove on > the bottom over the current spar, or just use the > 0.022" on the bottom by itself without any routing. > The latter is basically the fast lazy way. What I ask > myself is, why is it necessary to go further than just > the one .022" addition when the supplied wood spars > probably served just fine for many previous Quasoar > builders? Is putting the laminate on the bottom the > correct placement, or should it be on top if that was > the only spar supplement I were to add? > > Thanks, > > John Gossett > > ===== > John Gossett, Austin Texas > RC Soaring Site: > http://www.geocities.com/johntestsgo/index.html > > __________________________________________________ > Do You Yahoo!? > Send your FREE holiday greetings online! > http://greetings.yahoo.com > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
