Original Posted By: Don Mosher
Does anyone know if there are any differences in the GN-1 ribs and thePietenpol ribs? Mark McKellar________________________________________________________________________________Date: Sat, 17 Feb 2001 22:47:50 -0600
Pietenpol-List: Pietenpol list
Re: Pietenpol-List: Pietenpol list
Original Posted By: "John McNarry"
>>Does anyone know if there are any differences in the GN-1 ribs and thePietenpol ribs? Mark McKellar<Yes there are. I do not know the type airfoil in the GN-1, but I do knowthat the Piet rib has a concave undersurface & the GN-! does not.Mike B Piet N 687MB ( Mr Sam )________________________________________________________________________________
>>Does anyone know if there are any differences in the GN-1 ribs and thePietenpol ribs? Mark McKellar<Yes there are. I do not know the type airfoil in the GN-1, but I do knowthat the Piet rib has a concave undersurface & the GN-! does not.Mike B Piet N 687MB ( Mr Sam )________________________________________________________________________________
Re: Pietenpol-List: Pietenpol list
Original Posted By: "Richard Gillespie"
Sorry Mike, but the GN-1 has under camber, maybe not as pronounced as thePietenpol rib, but it is there. The one major difference I came across isthe aileron hinge design. The GN-1 has the aileron spar vertical andparallel to the rear spar and uses hinges in the vertical center of thespars. This makes a gap, that in my opinion is ugly. The gap is sealed by afabric strip crossing through the hinge line from the top surface on oneside to the under surface on the other. The original Pietenpol aireron hingedesign with the slanted aileron spar makes a lot of sense.Bernard was a clever man!The other differences are in spar spacing and the direction of the diagonalsin the rib truss.Also the Pietenpol lends itself to repositioning the wing as the fastenerscenterline is across the fuselage. the GN-1 fittings place the fastenercenterlines parallel to the fuse fixing the wing in the position it wasdesigned. This is okay as long as you stay with the Continental power. ThePietenpol is better suited to engine changes.The GN and the Piet look the same, but are different airplanes. I have hadthe pleasure of flying in both and they both are a lot of fun. It doesn'tcost a lot to buy both sets of plans and study them well. You might findthings you like in both.John Mc >Does anyone know if there are any differences in the GN-1 ribs and the> Pietenpol ribs? Mark McKellar> Yes there are. I do not know the type airfoil in the GN-1, but I do know> that the Piet rib has a concave undersurface & the GN-! does not.>> Mike B Piet N 687MB ( Mr Sam )>________________________________________________________________________________
Sorry Mike, but the GN-1 has under camber, maybe not as pronounced as thePietenpol rib, but it is there. The one major difference I came across isthe aileron hinge design. The GN-1 has the aileron spar vertical andparallel to the rear spar and uses hinges in the vertical center of thespars. This makes a gap, that in my opinion is ugly. The gap is sealed by afabric strip crossing through the hinge line from the top surface on oneside to the under surface on the other. The original Pietenpol aireron hingedesign with the slanted aileron spar makes a lot of sense.Bernard was a clever man!The other differences are in spar spacing and the direction of the diagonalsin the rib truss.Also the Pietenpol lends itself to repositioning the wing as the fastenerscenterline is across the fuselage. the GN-1 fittings place the fastenercenterlines parallel to the fuse fixing the wing in the position it wasdesigned. This is okay as long as you stay with the Continental power. ThePietenpol is better suited to engine changes.The GN and the Piet look the same, but are different airplanes. I have hadthe pleasure of flying in both and they both are a lot of fun. It doesn'tcost a lot to buy both sets of plans and study them well. You might findthings you like in both.John Mc >Does anyone know if there are any differences in the GN-1 ribs and the> Pietenpol ribs? Mark McKellar> Yes there are. I do not know the type airfoil in the GN-1, but I do know> that the Piet rib has a concave undersurface & the GN-! does not.>> Mike B Piet N 687MB ( Mr Sam )>________________________________________________________________________________
Re: Pietenpol-List: Pietenpol list
Original Posted By: RatHat(at)aol.com
The GN-1 does have a concave undersurface.DickG.________________________________________________________________________________
The GN-1 does have a concave undersurface.DickG.________________________________________________________________________________
Re: Pietenpol-List: "How To" articles on the web
Original Posted By: Isablcorky(at)aol.com
Subject: Re: Pietenpol-List: "How To" articles on the webplease unsubscribe me from this bulk mailing list....thank you in advance.________________________________________________________________________________
Subject: Re: Pietenpol-List: "How To" articles on the webplease unsubscribe me from this bulk mailing list....thank you in advance.________________________________________________________________________________
Pietenpol-List: Re: Pietenpol list
Original Posted By: "Mark Stanley"
Enough said! This USMC patriot is moving on. Enjoy your builds and God bless us all!Kenneth M. HeideSent from my iPhone> > ________________________________________________________________________________
Enough said! This USMC patriot is moving on. Enjoy your builds and God bless us all!Kenneth M. HeideSent from my iPhone> > ________________________________________________________________________________