Brodhead Pietenpol Association

Original Posted By: "walt evans"
Is there a good way to bend the 1/16 plywood around rhe leading edge? I am thinking about glueing and tacking the bottom edge and glueing to the bottom of the ribs. When this dries then I start wetting down around the leading edge to make the bend, and then I glue and tack the top. Has anyone tried this, or is there any other better way? Thanks, Gardiner Mason in Atlanta , Ga.________________________________________________________________________________Date: Thu, 11 Jan 2007 18:44:25 -0500

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Gardner,I bent my ply around a 1 inch steel tube first. I wet the ply and graduallytightened the clamps until the ply was almost bent in half. We the ply wasformed I glued it to the wing. I used trailer tie down straps and staples tohold everything in place until the glue dried. If I were to do it again Iwould used a long piece of timber under the tie down strap along the leadingedge. This would stop some indentations along the leading edge caused byuneven tension in the straps. Check out HYPERLINK"http://www.cpc-world.com/"http://www.cpc-world.com. Go to AirframeConstruction > Wings > Outer Sections. There are some more pictures on Page9 in the build photos section.Hope that helps.PeterWonthaggi AustraliaHYPERLINK "http://www.cpc-world.com/"http://www.cpc-world.com _____

Original Posted By: Peter W Johnson
Peter, Thanks for the feedback,but in my case I don,t thing the straps will work. My center section-like yours- is the fuel tank closed up. I am only putting wood on that section- the wings have a metal leading edge and I used clamping straps which worked well. You do beautiful work, and I hope mine turns out pretty good. My center section will hold about 17 gallons feeding down to a 3 gallon header tank. WM Wynne is finishing my engine,but I did all the prep work. I don,t have a problem with all the wood work, but I had to cut all the metal pieces by hand and learn how to gas weld myself. I could go on and on so thanks for your help. All your pictures are a big help. I started my project in March 05, and hope to have it finished in the fall. Gardiner Mason, Atlanta, Ga. USA ----- Original Message -----

Original Posted By: Larry Rice

Original Posted By: "Mike Whaley"
Subject: Re: Pietenpol-List: bending woodIn a message dated 1/11/2007 5:39:31 PM Central Standard Time, airlion(at)bellsouth.net writes:When this dries then I start wetting down around the leading edge to make the bend, and then I glue and tack the top. Has anyone tried this, or is there any other better way?Gardiner,The best way is according to the plans - no need to bend the plywood around the leading edge. It only goes on the top. Overlap the top of the leading edge with the forward edge of the 1/16, but not around the L. E. radius. Thenblend in (sand) the top of the plywood with the leading edge.Chuck G.NX770CG________________________________________________________________________________

Original Posted By: HelsperSew(at)aol.com
>> Is there a good way to bend the 1/16 plywood around rhe leading edge?>> I am thinking about glueing and tacking the bottom edge and glueing to>> the bottom of the ribs. When this dries then I start wetting down around>> the leading edge to make the bend, and then I glue and tack the top.>> Has anyone tried this, or is there any other better way? Thanks,>> Gardiner Mason in Atlanta , Ga.Steen Aero Lab makes 1/16" vacuum-formed laminated plywood leading edgesthat might work for you with a little adaptation. They're VERY popular withthe acro bipe crowd nowadays. Check out www.steenaero.com (look in theproducts section and in the online store.) Steen can do custom work onthese, it's usually just a matter of how the pieces are trimmed and laidinto the mold.The Obligatory Disclaimer: I work for Steen... but I thought this would beof interest to this discussion.-MikeMike Whaley merlin@ov-10bronco.netWebmaster, OV-10 Bronco Associationhttp://www.ov-10bronco.net/___________________ ... __________

Original Posted By:> Mike Whaley
MikeThe 1/16 plywood goes from the center of the front spar to 1/2 " overlap onthe leading edge. It's about a 9" strip of 1/16 plywood. After gluing sand itdown to feather it in with the leading edge.No wetting no bending required.Dale> [Original Message]

Original Posted By: "Dale Johnson"
John Dilatush has a really nice method for attaching the ply to the leading edge. He router cut the leading edge 1/16"th by 1/4". Attached is a quick sketch to show the detail. I used some scrap to get the angle right. This gives a 1/4" gluing surface to the leading edge without any bending around the leading edge.Greg BaconPrairie Home, MO----- Original Message -----

Original Posted By: Larry Rice

Original Posted By: shad bell
Rick,That post was hillarious. Too bad there is such variance in data on such an importanttopic.Thanks--------Glenn ThomasN?????http://www.flyingwood.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 12 Jan 2007 16:54:03 -0800 (PST)

Original Posted By: Rick Holland
Rick, thanks for the feedback. I have already wraped the leading edge of both wings with metal,and it worked fine. The center section is where I will use wood. I have decided to glue the bottom on first and then the top next. I will use Z Grip to fair off the front edge. By the way, what is all that white stuff behind your house? Down here in Ga. we just have Georgia ice cream. I am going to Fl this weekend to get my engine. William says he has all the parts and come on down to finish putting it together. Take care, Gardiner. ----- Original Message -----

Original Posted By: Rcaprd(at)aol.com
-- 10/01/2007 2:52 PM------------------------------------------------------------------------------1/10/2007________________________________________________________________________________

Original Posted By: Tim Willis
> Subject: Pietenpol-List: Re: bending wood>>> >> Is there a good way to bend the 1/16 plywood around rhe leading edge?> >> I am thinking about glueing and tacking the bottom edge and glueing to> >> the bottom of the ribs. When this dries then I start wetting downaround> >> the leading edge to make the bend, and then I glue and tack the top.> >> Has anyone tried this, or is there any other better way? Thanks,> >> Gardiner Mason in Atlanta , Ga.>> Steen Aero Lab makes 1/16" vacuum-formed laminated plywood leading edges> that might work for you with a little adaptation. They're VERY popularwith> the acro bipe crowd nowadays. Check out www.steenaero.com (look in the> products section and in the online store.) Steen can do custom work on> these, it's usually just a matter of how the pieces are trimmed and laid> into the mold.>> The Obligatory Disclaimer: I work for Steen... but I thought this would be> of interest to this discussion.>> -Mike>> Mike Whaley merlin@ov-10bronco.net> Webmaster, OV-10 Bronco Association> http://www.ov-10bronco.net/>>__________ ... ______Date: Fri, 12 Jan 2007 17:04:01 -0600 (GMT-06:00)