Original Posted By: "Hubbard, Eugene"
Subject: Pietenpol-List: Re: cabane X brace cablesHas anyone considered or done the folowing? Comments welcomeI am installing brackets for cabane struts My concern is, I believe its possible for a piet to nose over and land upside down - with the wing acting as your roll cage. Wouldnt it be an improvement instead of having the X support ( from bottom of say rear left cabane to top of rear right cabane and visa versa ) instead of cables and turnbuckles - use strut sectrions or tube or rod.Wouldnt this make a much stronger roll cage??Is my concern about roll over exagerated??Of course this has a small weight penalltyHenry Williams ________________________________________________________________________________
Pietenpol-List: Re: cabane X brace cables
RE: Pietenpol-List: Re: cabane X brace cables
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Henry,It sounds reasonable, but I would think that the cabane struts are be plentystrong to hold up the weight of the airplane by themselves. All that adiagonal strut or cables do is control racking. The diagonal tube would bea bit of a pain to fit, and wouldn't really add much compression strength instraight-forward roll-over.I don't think your concern about rollover is exaggerated--I like the idea ofhaving that big wing spar over my head too.Gene HubbardWaiting to put the wings on in San Diego-----Original Message-----
Henry,It sounds reasonable, but I would think that the cabane struts are be plentystrong to hold up the weight of the airplane by themselves. All that adiagonal strut or cables do is control racking. The diagonal tube would bea bit of a pain to fit, and wouldn't really add much compression strength instraight-forward roll-over.I don't think your concern about rollover is exaggerated--I like the idea ofhaving that big wing spar over my head too.Gene HubbardWaiting to put the wings on in San Diego-----Original Message-----
Pietenpol-List: Re: cabane X brace cables
Original Posted By: At7000ft(at)aol.com
Re: Pietenpol-List: One piece landing gear reinforcement straps and brackets
Original Posted By:
It's just that anything that you build/fit to the fuse before fabric, Afteryou cover, the dimensions change and the fit will be off.walt evansNX140DL----- Original Message -----
It's just that anything that you build/fit to the fuse before fabric, Afteryou cover, the dimensions change and the fit will be off.walt evansNX140DL----- Original Message -----
Re: Pietenpol-List: One piece landing gear reinforcement straps and brackets
Original Posted By:> At7000ft(at)aol.com
That is sort of what I did on mine. I built the solid axle version and this methodmight not work for the split axle gear, but I made the straps run under thefuselage and incorporated the fitting that the lift strut attaches to on eachend of the strap. The lift strut fittings were actually a sandwich made ofthree pieces. the top piece was a lug welded to the outer landing gear attachmentfitting. The middle piece of the sandwich was the end of the underbellystrap, and the lower piece of the sandwich was the end of the undercarriage bracingwire fitting. This ties the landing gear and lift struts together andshould anything break, the airplane is suspended on the steel straps running underthe fuselage. See attached photo showing the "sandwich" while the fittingwas under construction. I apologize for the long download.Jack PhillipsRaleigh, NC>
That is sort of what I did on mine. I built the solid axle version and this methodmight not work for the split axle gear, but I made the straps run under thefuselage and incorporated the fitting that the lift strut attaches to on eachend of the strap. The lift strut fittings were actually a sandwich made ofthree pieces. the top piece was a lug welded to the outer landing gear attachmentfitting. The middle piece of the sandwich was the end of the underbellystrap, and the lower piece of the sandwich was the end of the undercarriage bracingwire fitting. This ties the landing gear and lift struts together andshould anything break, the airplane is suspended on the steel straps running underthe fuselage. See attached photo showing the "sandwich" while the fittingwas under construction. I apologize for the long download.Jack PhillipsRaleigh, NC>
RE: Pietenpol-List: Re: cabane X brace cables
Original Posted By:>
HenryDon't use either . How are you going to get in the front hole.Use pipe from upper engin mount to top of front cabine.Dale Johnson Mpls.> [Original Message]
HenryDon't use either . How are you going to get in the front hole.Use pipe from upper engin mount to top of front cabine.Dale Johnson Mpls.> [Original Message]
> Pietenpol-List: One piece landing gear reinforcement straps and brackets
Original Posted By: "flywrite(at)erols.com"
> To: pietenpol-list(at)matronics.com> Subject: Pietenpol-List: One piece landing gear reinforcement straps and brackets> > > Instead of building 4 bottom landing gear attachment brackets and then addingreinforcement straps and welding them between each pair of brackets, has anyonetried making one-piece straps going the full width of the fuselage which incorporatethe brackets?> > > > > > > > > ________________________________________________________________________________
> To: pietenpol-list(at)matronics.com> Subject: Pietenpol-List: One piece landing gear reinforcement straps and brackets> > > Instead of building 4 bottom landing gear attachment brackets and then addingreinforcement straps and welding them between each pair of brackets, has anyonetried making one-piece straps going the full width of the fuselage which incorporatethe brackets?> > > > > > > > > ________________________________________________________________________________
> Pietenpol-List: Re: cabane X brace cables
Original Posted By: At7000ft(at)aol.com
> Subject: Pietenpol-List: Re: cabane X brace cables>>> Has anyone considered or done the folowing? Comments welcome> I am installing brackets for cabane struts > My concern is, I believe its possible for a piet to nose over and landupside > down - with the wing acting as your roll cage. Wouldnt it be animprovement > instead of having the X support ( from bottom of say rear left cabane totop > of rear right cabane and visa versa ) instead of cables and turnbuckles -use > strut sectrions or tube or rod.> Wouldnt this make a much stronger roll cage??> Is my concern about roll over exagerated??> Of course this has a small weight penallty> Henry Williams > > > > > > >________________________________________________________________________________Date: Tue, 22 Jun 2004 18:24:36 -0400
> Subject: Pietenpol-List: Re: cabane X brace cables>>> Has anyone considered or done the folowing? Comments welcome> I am installing brackets for cabane struts > My concern is, I believe its possible for a piet to nose over and landupside > down - with the wing acting as your roll cage. Wouldnt it be animprovement > instead of having the X support ( from bottom of say rear left cabane totop > of rear right cabane and visa versa ) instead of cables and turnbuckles -use > strut sectrions or tube or rod.> Wouldnt this make a much stronger roll cage??> Is my concern about roll over exagerated??> Of course this has a small weight penallty> Henry Williams > > > > > > >________________________________________________________________________________Date: Tue, 22 Jun 2004 18:24:36 -0400