Brodhead Pietenpol Association

Original Posted By: "Jack Phillips"
Subject: Pietenpol-List: eyebolts, no turnbuckles>>Hope this information goes over well, I feel like about to step in the line>of fire with all the recent emails about turnbuckles...>>The method that my Pober SuperAce used to install the drag/anti-drag wires>in the wing was to use 1/4" x 5" eyebolts with the eye welded shut. Then>the bolt is installed through the spar at the same angle the wire will be>(so the wire pulls straight on the bolt). The drag/anti-drag wires are at>angles so this required a angled block on the back of the spar where the>washer and nut landed. This method not only generated an attachmentfitting>but acted as a turnbuckle as well.>>I think this methodology would work anywhere you wouldn't mind a bolt going>all the way through a member and having the end stick out the other side.>This may not work well for the bracing wires but I'm sure I consider itwhen>I get there.>>Robert Haines>Du Quoin, Illinois>>________________________________________________________________________________

Original Posted By: Fisherman Caye
Subject: Pietenpol-List: eyebolts, no turnbuckles>>Hope this information goes over well, I feel like about to step in the line>of fire with all the recent emails about turnbuckles...>>The method that my Pober SuperAce used to install the drag/anti-drag wires>in the wing was to use 1/4" x 5" eyebolts with the eye welded shut. Then>the bolt is installed through the spar at the same angle the wire will be>(so the wire pulls straight on the bolt). The drag/anti-drag wires are at>angles so this required a angled block on the back of the spar where the>washer and nut landed. This method not only generated an attachmentfitting>but acted as a turnbuckle as well.>>I think this methodology would work anywhere you wouldn't mind a bolt going>all the way through a member and having the end stick out the other side.>This may not work well for the bracing wires but I'm sure I consider itwhen>I get there.>>Robert Haines>Du Quoin, Illinois>>________________________________________________________________________________Date: 11 Feb 2002 14:18:38 -0800

Original Posted By: "Hubbard, Eugene"
Hope this information goes over well, I feel like about to step in the lineof fire with all the recent emails about turnbuckles...The method that my Pober SuperAce used to install the drag/anti-drag wiresin the wing was to use 1/4" x 5" eyebolts with the eye welded shut. Thenthe bolt is installed through the spar at the same angle the wire will be(so the wire pulls straight on the bolt). The drag/anti-drag wires are atangles so this required a angled block on the back of the spar where thewasher and nut landed. This method not only generated an attachment fittingbut acted as a turnbuckle as well.I think this methodology would work anywhere you wouldn't mind a bolt goingall the way through a member and having the end stick out the other side.This may not work well for the bracing wires but I'm sure I consider it whenI get there.Robert HainesDu Quoin, Illinois________________________________________________________________________________

Original Posted By: Robert Haines
That's an excellent method of installing the drag/antidrag wires in thewing. I rebuilt a 1941 Aeronca Chief about 15 years ago that ,as I recall,used something very similar to the way you described. I'm certainly going toconsider doing it that way when I get to that point with my wings. Sam-----Original Message-----

Original Posted By: owner-pietenpol-list-server(at)matronics.com
A lot of planes use this method (including the Pitts Special, I believe,although it uses threaded flying wire type material protruding through thespar with a nut on the far side rather than a screw eye). However, it mightbe difficult to do on the outer bay of the Pietenpol since the outercompression strut is the wingtip. I don't think you would have enough roomto bury the nut in the wingtip without it or the end of the screw eyeshowing. Just think about it before committing to this approach. Mostplanes that use this arrangement have the drag wires and anti-drag wires atroughly 45 degrees to the spar. The Pietenpol is more like 25 degrees.Jack -----Original Message-----

Original Posted By: "Gene Rambo"
> ""The method that my Pober SuperAce used to install the drag/anti-dragwires> in the wing was to use 1/4" x 5" eyebolts with the eye welded shut. Then> the bolt is installed through the spar at the same angle the wire will be> (so the wire pulls straight on the bolt). The drag/anti-drag wires are at> angles so this required a angled block on the back of the spar where the> washer and nut landed. This method not only generated an attachmentfitting> but acted as a turnbuckle as well.""Bob: This is similar to how the Steen Skybolt is done also, and I believethe Pitts, too. In those wings, the drag/anti-drag is a thin rod which isthreaded on the ends (both right-hand, not opposites) The wires go throughthe spar at an angle both because of the angle of the wire and because thewings are swept. On the back side of the spar is a hardwood wedge block andthere is a large washer and double nuts on each wire. Easy to make, easy totighten.________________________________________________________________________________