Original Posted By: Teal38(at)aol.com
I am in the process of hooking up my rudder and elevator control cables.The angles are giving me some problems.The biggest problem is how to run the rudder control cable from the rearcockpit rudder bar to the rudder horn. Should I run the cable under theseat, through a pulley, to the horn? Or, take a direct route from the barabove the seat and maybe install a protective tube as it passes through thecockpit area.The cable going from the bellcrank to the upper elevator horn touches theleading edge of when the elevator is in the neutral position. Changingthe position of the bellcrank doesn't seem to make much differance. I guessI'll just put a protective cover ion the leading edge.Any input would be much appreciated.ThanksDick Navratil________________________________________________________________________________
Pietenpol-List: controll cables
Re: Pietenpol-List: controll cables
Original Posted By: vistin(at)juno.com
Subject: Re: Pietenpol-List: controll cablesIn a message dated 5/11/00 9:58:32 PM Central Daylight Time, horzpool(at)goldengate.net writes:Dick, I put a pulley under the back of the seat area, that worked fine for the rudder. The control horn WILL cause the elevator cable to rub the top horizontal stab. You should notice that when the elevator is in "level flight" the cable will not rub. This seem to be a trade mark of the Pietenpol, as most all that I have seen have some leather on the leading edge of the stab to protect the fabric.Scott Dufreche>________________________________________________________________________________
Subject: Re: Pietenpol-List: controll cablesIn a message dated 5/11/00 9:58:32 PM Central Daylight Time, horzpool(at)goldengate.net writes:Dick, I put a pulley under the back of the seat area, that worked fine for the rudder. The control horn WILL cause the elevator cable to rub the top horizontal stab. You should notice that when the elevator is in "level flight" the cable will not rub. This seem to be a trade mark of the Pietenpol, as most all that I have seen have some leather on the leading edge of the stab to protect the fabric.Scott Dufreche>________________________________________________________________________________
Re: Pietenpol-List: controll cables
Original Posted By: Rcaprd(at)aol.com
Hey Dick.I'm not up on the Piet's rudder control very much. I guess this is the onewith the rudder horn mounted about midway up the rudder? Therefore theangle the cable makes as it clears the rear seat is significant. Looks tome like there are three alternatives.1) mount small pulleys just below the rear seat back to guide the ruddercable back to the horn (that is if no structure will interfere with straightline cable routing).2) mount fairleads at the same location for the same puprpose (most infosays that fairleads should not be used for more than 15 degrees cabledeflection) 1/4 in micarta works great for these.3) or route cables ABOVE the seat toward the rudder horn (again I think thestructural parts willplay a big role in how you rout the cables in the aftfuse . And also, the angle the cable attaches to the rudder bar may put afairly high load on the rudder bar pivot point maybe you could adjust thefulcrum angle of the pivot point to compensate.You may want to contact Charlie Rubeck and ask him??? I betcha he knows....________________________________________________________________________________
Hey Dick.I'm not up on the Piet's rudder control very much. I guess this is the onewith the rudder horn mounted about midway up the rudder? Therefore theangle the cable makes as it clears the rear seat is significant. Looks tome like there are three alternatives.1) mount small pulleys just below the rear seat back to guide the ruddercable back to the horn (that is if no structure will interfere with straightline cable routing).2) mount fairleads at the same location for the same puprpose (most infosays that fairleads should not be used for more than 15 degrees cabledeflection) 1/4 in micarta works great for these.3) or route cables ABOVE the seat toward the rudder horn (again I think thestructural parts willplay a big role in how you rout the cables in the aftfuse . And also, the angle the cable attaches to the rudder bar may put afairly high load on the rudder bar pivot point maybe you could adjust thefulcrum angle of the pivot point to compensate.You may want to contact Charlie Rubeck and ask him??? I betcha he knows....________________________________________________________________________________
Re: Pietenpol-List: controll cables
Original Posted By: "Conoly"
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Re: Pietenpol-List: controll cables
Original Posted By: "mary ellen styne"
Hi Bert,I got the controll thing figured out. I put a pulley below the seat on eachside. It's about a 15 degree angle change and I'll use some grommets tolead the cables along the fuse. I nicropressed the tail wheel cables to therudder cable too.ThanksDick----- Original Message -----
Hi Bert,I got the controll thing figured out. I put a pulley below the seat on eachside. It's about a 15 degree angle change and I'll use some grommets tolead the cables along the fuse. I nicropressed the tail wheel cables to therudder cable too.ThanksDick----- Original Message -----
> Re: Pietenpol-List: controll cables
Original Posted By: "Greg Cardinal"
Re: Pietenpol-List: controll cables
Original Posted By:> "mary ellen styne"
Subject: Re: Pietenpol-List: controll cablesGroup,OK, I'm gonna ask the naive question. Why not move the rudder control hornfurther down the rudder, say below the level of the horizontal stabilizerand elevator? Would this pose any problems that couldn't be pretty simplyfixed by some minor design changes? I can't think of any examples, but I'msure some other designs must use this approach.Mark BoyntonGilbert, AZ > > Hi Bert,> I got the controll thing figured out. I put a pulley below the seat oneach> side. It's about a 15 degree angle change and I'll use some grommets to> lead the cables along the fuse. I nicropressed the tail wheel cables tothe> rudder cable too.> Thanks> Dick> ----- Original Message -----
Subject: Re: Pietenpol-List: controll cablesGroup,OK, I'm gonna ask the naive question. Why not move the rudder control hornfurther down the rudder, say below the level of the horizontal stabilizerand elevator? Would this pose any problems that couldn't be pretty simplyfixed by some minor design changes? I can't think of any examples, but I'msure some other designs must use this approach.Mark BoyntonGilbert, AZ > > Hi Bert,> I got the controll thing figured out. I put a pulley below the seat oneach> side. It's about a 15 degree angle change and I'll use some grommets to> lead the cables along the fuse. I nicropressed the tail wheel cables tothe> rudder cable too.> Thanks> Dick> ----- Original Message -----
> > Re: Pietenpol-List: controll cables
Original Posted By: "Warren D. Shoun"
Re: Pietenpol-List: controll cables
Original Posted By:> > "mary ellen styne"
Subject: Re: Pietenpol-List: controll cablesAs a follow-up to my previous message:I just opened up Aircamper.org. On the opening page is a picture of abeautiful red and cream, Ford powered Air Camper. Guess where the ruddercontrol horn is located. Does anyone know who built that plane? I'd liketo ask what accompanying design changes (if any) were made.Mark BoyntonGilbert, AZvM.4.01.02.39 201-229-119-122) with ESMTP for;> > Group,> > OK, I'm gonna ask the naive question. Why not move the rudder controlhorn> further down the rudder, say below the level of the horizontal stabilizer> and elevator? Would this pose any problems that couldn't be prettysimply> fixed by some minor design changes? I can't think of any examples, butI'm> sure some other designs must use this approach.> > Mark Boynton> Gilbert, AZ> > > > > > > > Hi Bert,> > I got the controll thing figured out. I put a pulley below the seaton> each> > side. It's about a 15 degree angle change and I'll use some grommetsto> > lead the cables along the fuse. I nicropressed the tail wheel cablesto> the> > rudder cable too.> > Thanks> > Dick> > ----- Original Message -----
Subject: Re: Pietenpol-List: controll cablesAs a follow-up to my previous message:I just opened up Aircamper.org. On the opening page is a picture of abeautiful red and cream, Ford powered Air Camper. Guess where the ruddercontrol horn is located. Does anyone know who built that plane? I'd liketo ask what accompanying design changes (if any) were made.Mark BoyntonGilbert, AZvM.4.01.02.39 201-229-119-122) with ESMTP for;> > Group,> > OK, I'm gonna ask the naive question. Why not move the rudder controlhorn> further down the rudder, say below the level of the horizontal stabilizer> and elevator? Would this pose any problems that couldn't be prettysimply> fixed by some minor design changes? I can't think of any examples, butI'm> sure some other designs must use this approach.> > Mark Boynton> Gilbert, AZ> > > > > > > > Hi Bert,> > I got the controll thing figured out. I put a pulley below the seaton> each> > side. It's about a 15 degree angle change and I'll use some grommetsto> > lead the cables along the fuse. I nicropressed the tail wheel cablesto> the> > rudder cable too.> > Thanks> > Dick> > ----- Original Message -----
Re: Pietenpol-List: controll cables
Original Posted By: "mboynton(at)excite.com
Subject: Re: Pietenpol-List: controll cables>>In a message dated 6/7/00 9:48:07 AM Central Daylight Time,>pietenpol-list(at)matronics.com writes:>> further down the rudder, say below the level of the horizontal stabilizer> and elevator? Would this pose any problems that couldn't be pretty simply> fixed by some minor design changes? >>Why not? I did & it has been working, without problems, for 12 years.Mike B Piet N687MB ( Mr Sam )________________________________________________________________________________
Subject: Re: Pietenpol-List: controll cables>>In a message dated 6/7/00 9:48:07 AM Central Daylight Time,>pietenpol-list(at)matronics.com writes:>> further down the rudder, say below the level of the horizontal stabilizer> and elevator? Would this pose any problems that couldn't be pretty simply> fixed by some minor design changes? >>Why not? I did & it has been working, without problems, for 12 years.Mike B Piet N687MB ( Mr Sam )________________________________________________________________________________
Re: Pietenpol-List: controll cables
Original Posted By: "Michael Brusilow"
Subject: Re: Pietenpol-List: controll cablesIn a message dated 6/7/00 9:48:07 AM Central Daylight Time, pietenpol-list(at)matronics.com writes:>No doubt, Bernard considered all possible locations for the rudder horn. I can see several reasons to leave the horn in the plans location. It is close to one of the hinges, which eliminates flex in that portion of the rudder. Another reason is that if the horn is lowered, there is a much greater possibility of flutter, because so much of a flexing can occur above the horn. Another reason is the plane should be built to the plans. Install the rudder cables the way the plans call for it, and allow the wood be the fairlead, to change the direction of the cable. It works very well this way. If it ain't broke, don't fix it.Chuck________________________________________________________________________________
Subject: Re: Pietenpol-List: controll cablesIn a message dated 6/7/00 9:48:07 AM Central Daylight Time, pietenpol-list(at)matronics.com writes:>No doubt, Bernard considered all possible locations for the rudder horn. I can see several reasons to leave the horn in the plans location. It is close to one of the hinges, which eliminates flex in that portion of the rudder. Another reason is that if the horn is lowered, there is a much greater possibility of flutter, because so much of a flexing can occur above the horn. Another reason is the plane should be built to the plans. Install the rudder cables the way the plans call for it, and allow the wood be the fairlead, to change the direction of the cable. It works very well this way. If it ain't broke, don't fix it.Chuck________________________________________________________________________________
Re: Pietenpol-List: controll cables
Original Posted By: Rcaprd(at)aol.com
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Re: Pietenpol-List: controll cables
Original Posted By:> Rcaprd(at)aol.com
Subject: Re: Pietenpol-List: controll cablesMike,Thanks for the info. Did you have to make any related structural changes?Mark BoyntonGilbert, AZ> > > -----Original Message-----
Subject: Re: Pietenpol-List: controll cablesMike,Thanks for the info. Did you have to make any related structural changes?Mark BoyntonGilbert, AZ> > > -----Original Message-----
Re: Pietenpol-List: controll cables
Original Posted By: "mboynton(at)excite.com
>Mike,>>Thanks for the info. Did you have to make any related structural changes?>>Mark Boynton>Gilbert, AZ>>> >> > further down the rudder, say below the level of the horizontal>stabilizer>> > and elevator? Would this pose any problems that couldn't be pretty>simply>> > fixed by some minor design changes? >>>>>>>> Why not? I did & it has been working, without problems, for 12 years.>>>> Mike B Piet N687MB ( Mr Sam )No, no major changes. I placed an al plate a the second station (If Iremember right) fwd of the stern post, cut two slots & mounted a pully ineach slot to fairlead the cables.The pullys were slanted toward thecenterline about 45 deg.That can be worked out with a dummy installation.Mike B Piet N 687MB ( Mr Sam )________________________________________________________________________________
>Mike,>>Thanks for the info. Did you have to make any related structural changes?>>Mark Boynton>Gilbert, AZ>>> >> > further down the rudder, say below the level of the horizontal>stabilizer>> > and elevator? Would this pose any problems that couldn't be pretty>simply>> > fixed by some minor design changes? >>>>>>>> Why not? I did & it has been working, without problems, for 12 years.>>>> Mike B Piet N687MB ( Mr Sam )No, no major changes. I placed an al plate a the second station (If Iremember right) fwd of the stern post, cut two slots & mounted a pully ineach slot to fairlead the cables.The pullys were slanted toward thecenterline about 45 deg.That can be worked out with a dummy installation.Mike B Piet N 687MB ( Mr Sam )________________________________________________________________________________
Re: Pietenpol-List: controll cables
Original Posted By: "Carl Loar"
Subject: Re: Pietenpol-List: controll cablesThanks, Mike.Mark> > > >Mike,> >> >Thanks for the info. Did you have to make any related structuralchanges?> >> >Mark Boynton> >Gilbert, AZ> >>> > >> > further down the rudder, say below the level of the horizontal> >stabilizer> >> > and elevator? Would this pose any problems that couldn't be pretty> >simply> >> > fixed by some minor design changes? >>> >>> >>> >> Why not? I did & it has been working, without problems, for 12 years.> >>> >> Mike B Piet N687MB ( Mr Sam )> > > No, no major changes. I placed an al plate a the second station (If I> remember right) fwd of the stern post, cut two slots & mounted a pully in> each slot to fairlead the cables.The pullys were slanted toward the> centerline about 45 deg.That can be worked out with a dummy installation.> > Mike B Piet N 687MB ( Mr Sam )> > > > >Visit http://freelane.excite.com/freeisp_____ ... __________
Subject: Re: Pietenpol-List: controll cablesThanks, Mike.Mark> > > >Mike,> >> >Thanks for the info. Did you have to make any related structuralchanges?> >> >Mark Boynton> >Gilbert, AZ> >>> > >> > further down the rudder, say below the level of the horizontal> >stabilizer> >> > and elevator? Would this pose any problems that couldn't be pretty> >simply> >> > fixed by some minor design changes? >>> >>> >>> >> Why not? I did & it has been working, without problems, for 12 years.> >>> >> Mike B Piet N687MB ( Mr Sam )> > > No, no major changes. I placed an al plate a the second station (If I> remember right) fwd of the stern post, cut two slots & mounted a pully in> each slot to fairlead the cables.The pullys were slanted toward the> centerline about 45 deg.That can be worked out with a dummy installation.> > Mike B Piet N 687MB ( Mr Sam )> > > > >Visit http://freelane.excite.com/freeisp_____ ... __________
> Re: Pietenpol-List: controll cables
Original Posted By: "Domenico Bellissimo"
> Subject: Re: Pietenpol-List: controll cables> > > >> >In a message dated 6/7/00 9:48:07 AM Central Daylight Time,> >pietenpol-list(at)matronics.com writes:> >> > > further down the rudder, say below the level of the horizontalstabilizer> > and elevator? Would this pose any problems that couldn't be prettysimply> > fixed by some minor design changes? >>> > > Why not? I did & it has been working, without problems, for 12 years.> > Mike B Piet N687MB ( Mr Sam )> > > > >Visit http://freelane.excite.com/freeisp_____ ... __________
> Subject: Re: Pietenpol-List: controll cables> > > >> >In a message dated 6/7/00 9:48:07 AM Central Daylight Time,> >pietenpol-list(at)matronics.com writes:> >> > > further down the rudder, say below the level of the horizontalstabilizer> > and elevator? Would this pose any problems that couldn't be prettysimply> > fixed by some minor design changes? >>> > > Why not? I did & it has been working, without problems, for 12 years.> > Mike B Piet N687MB ( Mr Sam )> > > > >Visit http://freelane.excite.com/freeisp_____ ... __________