Original Posted By: "Douwe Blumberg"
The guy who I bought my project from fabricated some of the control cableassemblies and now that I'm hooking things up, I have a couple concerns.In the rudder bar end (wood) is a pivoting strap with a hole in the back forthe rudder and one in the front for the front pedals.He's attached the rudder cables to this pivoting strap with just a thimble,no shackle. Now since the strap pivots, there isn't really movement inthere, but it concerns me, and doesn't seem kosher based on Bingeles's book(he doesn't discuss this, just doesn't show it).He did the same thing on the elevator cable in the middle of the stick, noshackle, just a thimble to a plate.Is this acceptable or should I tear it all out and refabricate? Hate doingthat since everything is done, but if it's unsafe, there is no question.If I do need to refabricate, could I try cutting through the nicopresswithout damaging the cable?Douwe________________________________________________________________________________
Pietenpol-List: control cable concerns
Pietenpol-List: Pfeifer Sport plans
Original Posted By: "Cuy, Michael D. (GRC-RXD0)[ASRC Aerospace Corporation]"
Subject: Pietenpol-List: Pfeifer Sport plans> > I just saw the article in the latest Sport Aviation about the group > build of six steel-tube fuselage Pietenpols and thought that maybe some > of the group would like to see plans for another steel-tube Pietenpol > variant.> > My airplane is the Pfeifer Sport, build by Joe Pfeifer in 1975. He was a > friend of Bernie's back in the good old days and built a steel-tube > version of the Piet in 1930 and also powered it with a Model A engine. > He built the Corvair powered version I own in 1975 after Bernie had > started using Corvairs in his Piets.> > Joe also built World War I replicas, with his Sopwith Pup and Nieuport > 17, both with Le Rhone rotaries, displayed at the Flying Lady Restaurant > in Morgan Hill in the south San Francisco Bay area for many years.> > The fellow who drew up the blueprints for Joe was Ivan Dunlop, who had > built a beautiful Model B powered Piet that was also displayed at the > Flying Lady and is now rebuilt and flying from the South County airport > museum. Ivan visited me here in Sonoma and got his first ride in the > Pfeifer. Although he had drawn up the plans, he never got a ride when > Joe owned the airplane.> > Since my copy of the plans were aging, I had them scanned and saved as > .pdf files to preserve them. I had contacted Ivan's widow to try to find > the original vellums, but could never track them down, so I think these > are the only plans still in existence.> > If anyone would like a copy of the plans on disc let me know. I'll also > scan the original 1976 Sport Aviation article written by Bill Turner and > make that available. $5 ought to cover the cost of mailing and the disc.> > I hope to make it back to Brodhead again this year. It will be a while > before I can get the Sport back there since I'm rebuilding the engine > when I can steal time from work and other obligations.> > Darrel Jones> Pfeifer Sport N154JP> Sonoma, CA> > > > ________________________________________________________________________________
Subject: Pietenpol-List: Pfeifer Sport plans> > I just saw the article in the latest Sport Aviation about the group > build of six steel-tube fuselage Pietenpols and thought that maybe some > of the group would like to see plans for another steel-tube Pietenpol > variant.> > My airplane is the Pfeifer Sport, build by Joe Pfeifer in 1975. He was a > friend of Bernie's back in the good old days and built a steel-tube > version of the Piet in 1930 and also powered it with a Model A engine. > He built the Corvair powered version I own in 1975 after Bernie had > started using Corvairs in his Piets.> > Joe also built World War I replicas, with his Sopwith Pup and Nieuport > 17, both with Le Rhone rotaries, displayed at the Flying Lady Restaurant > in Morgan Hill in the south San Francisco Bay area for many years.> > The fellow who drew up the blueprints for Joe was Ivan Dunlop, who had > built a beautiful Model B powered Piet that was also displayed at the > Flying Lady and is now rebuilt and flying from the South County airport > museum. Ivan visited me here in Sonoma and got his first ride in the > Pfeifer. Although he had drawn up the plans, he never got a ride when > Joe owned the airplane.> > Since my copy of the plans were aging, I had them scanned and saved as > .pdf files to preserve them. I had contacted Ivan's widow to try to find > the original vellums, but could never track them down, so I think these > are the only plans still in existence.> > If anyone would like a copy of the plans on disc let me know. I'll also > scan the original 1976 Sport Aviation article written by Bill Turner and > make that available. $5 ought to cover the cost of mailing and the disc.> > I hope to make it back to Brodhead again this year. It will be a while > before I can get the Sport back there since I'm rebuilding the engine > when I can steal time from work and other obligations.> > Darrel Jones> Pfeifer Sport N154JP> Sonoma, CA> > > > ________________________________________________________________________________
RE: Pietenpol-List: control cable concerns
Original Posted By:> douweblumberg(at)earthlink.net
Good Morning Douwe I can answer part of your question. I got halfway through the swageing process one time and realized I had done something wrong. I tried to cut the swage off and redo it. No way. The swage would not come off the cable so I disected the swage joint with my Dremmel to see why. The copper had actually been pressed down into the cable so that all the strands were surrounded by copper. I was amazed but I'll never doubt a well done swage again. In " My opinion" I don't see a problem with the lack of a shackle in your controls as long as the pivoting is taken by the pivot bolt not by the cable joint. Hopefully some others will jump in on that. Ed Grentzer
Good Morning Douwe I can answer part of your question. I got halfway through the swageing process one time and realized I had done something wrong. I tried to cut the swage off and redo it. No way. The swage would not come off the cable so I disected the swage joint with my Dremmel to see why. The copper had actually been pressed down into the cable so that all the strands were surrounded by copper. I was amazed but I'll never doubt a well done swage again. In " My opinion" I don't see a problem with the lack of a shackle in your controls as long as the pivoting is taken by the pivot bolt not by the cable joint. Hopefully some others will jump in on that. Ed Grentzer
Re: Pietenpol-List: Pfeifer Sport plans
Original Posted By: Darrel Jones
Subject: Re: Pietenpol-List: Pfeifer Sport plansDarryl, I also would like a copy of the disc. Please send me your address. Could you give me some baisic specs on the Pfeiffer? How does it differ/resemble a Piet?The only photo I can find with a Google search is pretty grainey Blue Skies, Steve D----- Original Message -----
Subject: Re: Pietenpol-List: Pfeifer Sport plansDarryl, I also would like a copy of the disc. Please send me your address. Could you give me some baisic specs on the Pfeiffer? How does it differ/resemble a Piet?The only photo I can find with a Google search is pretty grainey Blue Skies, Steve D----- Original Message -----
Re: Pietenpol-List: control cable concerns
Original Posted By: Douwe Blumberg
There are lots of production airplanes that have done the same thing throughout the years with no downside. A thimble through a fitting hole can be just fine, and saves an expensive shackle to boot.Gene ----- Original Message -----
There are lots of production airplanes that have done the same thing throughout the years with no downside. A thimble through a fitting hole can be just fine, and saves an expensive shackle to boot.Gene ----- Original Message -----
Pietenpol-List: control cable concerns
Original Posted By: Steve Ruse
> Pietenpol-List: control cable concerns
Original Posted By: "Dortch, Steven D MAJ NG NG NGB"
> thlink.net>> > The guy who I bought my project from fabricated some of the control cable> assemblies and now that I'm hooking things up=2C I have a couple concerns.> > In the rudder bar end (wood) is a pivoting strap with a hole in the back for> the rudder and one in the front for the front pedals.> > He's attached the rudder cables to this pivoting strap with just a thimble=2C> no shackle. Now since the strap pivots=2C there isn't really movement in> there=2C but it concerns me=2C and doesn't seem kosher based on Bingeles's book> (he doesn't discuss this=2C just doesn't show it).> > He did the same thing on the elevator cable in the middle of the stick=2C no> shackle=2C just a thimble to a plate.> > Is this acceptable or should I tear it all out and refabricate? Hate doing> that since everything is done=2C but if it's unsafe=2C there is no question.> > If I do need to refabricate=2C could I try cutting through the nicopress> without damaging the cable?> > Douwe> > ============================================> > > _________________________________________________________________Windows Live=99: Keep your life in sync.http://windowslive.com/explore?ocid=TXT ... __________
> thlink.net>> > The guy who I bought my project from fabricated some of the control cable> assemblies and now that I'm hooking things up=2C I have a couple concerns.> > In the rudder bar end (wood) is a pivoting strap with a hole in the back for> the rudder and one in the front for the front pedals.> > He's attached the rudder cables to this pivoting strap with just a thimble=2C> no shackle. Now since the strap pivots=2C there isn't really movement in> there=2C but it concerns me=2C and doesn't seem kosher based on Bingeles's book> (he doesn't discuss this=2C just doesn't show it).> > He did the same thing on the elevator cable in the middle of the stick=2C no> shackle=2C just a thimble to a plate.> > Is this acceptable or should I tear it all out and refabricate? Hate doing> that since everything is done=2C but if it's unsafe=2C there is no question.> > If I do need to refabricate=2C could I try cutting through the nicopress> without damaging the cable?> > Douwe> > ============================================> > > _________________________________________________________________Windows Live=99: Keep your life in sync.http://windowslive.com/explore?ocid=TXT ... __________