Pietenpol-List: Pietenpol spars

matronics · Post by **matronics** » Tue May 16, 2000 1:22 pm

Original Posted By: "walter evans"
Subject: Pietenpol-List: Pietenpol sparsI'm getting ready to order my spars the original plans call for 1"x4 3/4"and on the 3 piece wing it calls for 3/4"x 4 3/4" which is preferred and has anyone made them of built up ply. Looking for some feedback on which is OK and which is not OK. By the way I'm building the 3 piece wing.________________________________________________________________________________

matronics · Post by **matronics** » Wed May 17, 2000 7:10 am

Original Posted By: "Michael Brusilow"
Subject: Re: Pietenpol-List: Pietenpol sparsDelApprieciate the feedback on the spar question its so great to be able to have a question and have it answered for you in such a short time.Gary New Orleans________________________________________________________________________________

matronics · Post by **matronics** » Wed May 17, 2000 8:11 am

Original Posted By: Flite407(at)aol.com
>>> I'm getting ready to order my spars the original>> plans call for 1"x4 3/4"and>> on the 3 piece wing it calls for 3/4"x 4 3/4" which>> is preferred3/4 x 3/4 works great. Easier than routing a one inch spar. If you plan onusing uprights instead of gussets on the ribs ( which show one inch space )a 1/4 inch shim on the back face of the spar at each rib station will work.That is how I did it.Mike B Piet N687MB ( Mr Sam )________________________________________________________________________________

matronics · Post by **matronics** » Wed May 17, 2000 3:08 pm

Original Posted By: "Michael King"
I'd care to hear any trick or technique that would make this scarf work out. Thanks.>From: dpilot >Reply-To: pietenpol-list(at)matronics.com>To: pietenpol-list(at)matronics.com>Subject: Re: Pietenpol-List: Pietenpol spars>Date: Wed, 17 May 2000 10:54:54 -0700 (PDT)>>>3/4 X 4 3/4 is fine.>I laminated mine and they are working well.>There is a real trick to cutting the 10 or 12 to one>slope and have a smooth finish from the saw.>I'll tell about it if anybody cares.>>JimV.>>>--- Flite407(at)aol.com wrote:> > Flite407(at)aol.com> >> > Del> > Apprieciate the feedback on the spar question its so> > great to be able to have> > a question and have it answered for you in such a> > short time.> > Gary> > New Orleans> >> >> >> > through> >> > http://www.matronics.com/archives> > http://www.matronics.com/emaillists> >> > Matronics!> >> >> >> >> >>>>Send instant messages & get email alerts with Yahoo! Messenger.>>________________________________________________________________________________

matronics · Post by **matronics** » Wed May 17, 2000 3:53 pm

Original Posted By: "B and V Dearinger"
Subject: Re: Pietenpol-List: Pietenpol sparsDear Jim VI'd like to hear more about the lamination process for the spars, You can email me with it if you don't want to tie up the list lineGary New Orleans________________________________________________________________________________

matronics · Post by **matronics** » Wed May 17, 2000 10:21 pm

Original Posted By:
I asked the same question about plywood spars a few months ago and afterlooking into the stress and loading issues decided it's not such a goodidea. I also checked into a laminated beam with scarfed joints, which Ihave decided on. Five plys of 1x1 with stagered joints for a one piecewing. This required heavy discussions with Bert Connely over beer and wings,thanks again Bert.Dick Navratil ----- Original Message -----

matronics · Post by **matronics** » Thu May 18, 2000 6:54 am

Original Posted By: del magsam

matronics · Post by **matronics** » Thu May 18, 2000 8:26 am

Original Posted By: Richard DeCosta

Brodhead Pietenpol Association