Brodhead Pietenpol Association

Original Posted By: vistin(at)juno.com
Subject: Pietenpol-List: Rudder cablesSome time back, a note in the BAPNews spoke of attaching the tail wheelcables 4 inches out from the pivot bolt of the rudder bar. It said ifyou connect the cables to the rudder cables, or end of the ruder bar youget too much tail wheel movement too soon. I'm not there yet, but planto weld tabs on my rudder bar to test it. Just something to think about.Leon S.________________________________________________________________________________

Original Posted By: "Greg Cardinal"
Subject: Pietenpol-List: Rudder cablesHi Gang....Since the plans show no details of the rudder cables Iassumed that they run from the rudder bar through the seat back directlyto the rudder horn. I drilled the holes in the seat back and ran astring line, then realized I have never noticed the cables runningthrough the rear pit in any of the few live Piets that I have seen. Isthis the way most rudder cables are run or are most run under the seatto a set of pulleys?????Thanks in advance and have a great Thanksgiving. Ed ________________________________________________________________________________Date: Mon, 25 Nov 2002 13:26:42 -0600

Original Posted By: John_Duprey(at)vmed.org
Subject: Re: Pietenpol-List: Rudder cablesGreat, thanks Greg...It can't get any simpler than that!! Ed________________________________________________________________________________

Original Posted By: "Gadd, Skip"
HI Ed,I used pulleys on mine. Ran the cables under the rear seat but theninstalled pulleys just behind the rear seat, with fairleads at the pointwhere the bellcrank attaches to the fuselage. The reason was to get therudder cables above the elevator cables to avoid chafing (a common problem).See if your cables will chafe against the elevator cables befor deciding howto route them.JackHi Gang....Since the plans show no details of the rudder cables Iassumed that they run from the rudder bar through the seat back directlyto the rudder horn. I drilled the holes in the seat back and ran astring line, then realized I have never noticed the cables runningthrough the rear pit in any of the few live Piets that I have seen. Isthis the way most rudder cables are run or are most run under the seatto a set of pulleys?????Thanks in advance and have a great Thanksgiving. Ed________________________________________________________________________________

Original Posted By: "Dale Johnson"
Subject: Pietenpol-List: Rudder cablesHi John: I think rubbing cables on the plywood would continue toelongate the hole making the cable looser as the hole gets bigger. Itwould bee a great place or one of those plastic fairleads. I made mineout of hardwood. I drilled the hole in the hardwood at an angle for thebest cable routing, then further refined the hole with a dremmel tool.An old time Piet builder recommended the hardwood fairlead to me atBrodhead. He said he had used them on his Piet for years and years, andmany many hours. They don't ware, the cable just polishs the holesmooth. Leon S. in soggy Ks.________________________________________________________________________________

Original Posted By: John Egan
JohnWe used 1/4 " plastic tubing from the front of the back seat to where it exitsthe plane.There is storage under the rear seat this keeps the rudder cables from gettingcought on any thing.The plastic tube is fastened to the vertical pieces with nylon cable clamps.Dale----- Original Message -----

Original Posted By:

Original Posted By: "Douwe Blumberg"
Hi Everyone out there in Pietland. Has anyone out there run their rudder cables directly to the rudder horn as per the plans? I drilled a couple little holes in my seat back and ran some string and except for the asthetics of haveing the cable in the rear pit it seems to work out really nice and simple and Tony B. recommends it. AND those who have run them under the seat.. I have seen pics of pulleys behind the seat to turn the cables up. do they run directly to the rudder from there or is there another pulley or fairlead at the rear used to turn the cable angle back down?? Thanks in advance Ed G. _________________________________________________________________The New Busy is not the old busy. Search=2C chat and e-mail from your inbox.http://www.windowslive.com/campaign/the ... __________

Original Posted By: Jeff Boatright

Original Posted By: Ed G.
Ed,I ran mine back to a pair of pullies basically one stage ahead of the point of the pivot of the swingarm of the original tailwheel. Then to the tailwheel, hooked to it with springs.walt evansNX140DL ----- Original Message -----

Original Posted By: "Pieti Lowell"
So exactly where is this wheel retracted to?It seems to me it could get pretty funky retractedto the rear. New meaning to the expression" crotch rocket" . He! he!Clif"There are many tunes still to be written in the Key of C." Arnold Schoenberg But Bill, seeing how I like to change things AND NOT do what others do, I'll have to make my single wheel landing gear retractable, but no heavier then a single fixed! ( Now I have to machine a crank handle, gears, shafts...) .M Perez ________________________________________________________________________________Subject: Pietenpol-List: Re: Rudder cables

Original Posted By: "Jack"
The important thing is, the tail wheel control arms, at the rudder, must rotatethe same degree as the rudder, IE. same lengths on each arm or you will experiencea very serious problem of tail end control.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________

Original Posted By: owner-pietenpol-list-server(at)matronics.com [mailto:owner-pietenpol-lis
Mike=94my gut tells me that it needs to extend to the sides of the fuselage because it acts as a fuselage bulkhead/ twistingstiffener if I=99m picturing your question correctly in my head. =C2-Mike C. =C2-=C2-=C2-

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Mike=94my gut tells me that it needs to extend to the sides of the fuselage because it acts as a fuselage bulkhead/ twisting stiffener if I=99m picturing your question correctly in my head. Mike C.

Original Posted By: "taildrags"
Tony Bingelis recommends shock mounts for gyros, specifically directionaland attitude indicators. Anybody shock mounting their turn and banks? I'mplanning for an electric model.Thanks,JackDSM ________________________________________________________________________________Subject: Pietenpol-List: Re: Rudder cables

Original Posted By: jeff wilson
well, I don't have my airplane here to be able to check the lengths of the tailwheeland rudder bellcrank horns but looking at the picture, they are pretty closeto the same length if not just a tad shorter for the tailwheel ones. Thetailwheel bellcrank horns have several different holes that the springs and cablescan be hooked up to for different leverage but I've left them where Corkyhad them and it seems to track and handle just fine.--------Oscar ZunigaSan Antonio, TXAir Camper NX41CCRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/p609 ... ______Date: Fri, 26 Mar 2010 06:19:26 -0700 (PDT)

Original Posted By: "Jack"
Oscar,Thanks for the picture. I noticed when you "attach" pictures they are in alink form below the attachment area. How is that done?Thanks,JackDSMwell, I don't have my airplane here to be able to check the lengths of thetailwheel and rudder bellcrank horns but looking at the picture, they arepretty close to the same length if not just a tad shorter for the tailwheelones. The tailwheel bellcrank horns have several different holes that thesprings and cables can be hooked up to for different leverage but I've leftthem where Corky had them and it seems to track and handle just fine.--------Oscar ZunigaSan Antonio, TXAir Camper NX41CCRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/p609 ... __________

Original Posted By: Jeff Boatright

Original Posted By: Michael Perez
Ben, You see, the exact problem you have experienced, is why I suggested when the lengthof the horns are not correct there could be a problem, a very big problem.I also had the tail wheel horns too short and when the tail lifted, there wasn'tenough rudder to keep me on the runway, as the rudder was fully pushed, onedirection was restricted in defection, and off the runway we went, Wife onboard: And explain that maneuver NOT !The steerable -full swivel, (Ala, Ken Perkins design ),can be a problem also, ifone kicks a full rudder and it might unlock the tail wheel, Something likea landing on 36L at EAA with a 20 knot wind from the 270 quadrant. And the Pietunder 20 Knots.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Fri, 26 Mar 2010 14:33:28 -0700 (PDT)

Original Posted By: Pieti Lowell
Pietri,With the tail horns too short the rudder would react more and get quicker rudder response.walt evansNX140DL ----- Original Message -----

Original Posted By: Rick Holland
Subject: Re: Pietenpol-List: Re: Rudder cables

Original Posted By: "gcardinal"
Walt,When the tail wheel horns are shorter than the rudder horns the tail wheel willmax the rotation before the rudders equal rotation. I.E. If the Tail wheel hornsare a total length of 6 " and the rudder horns are 12 " long, you push rightrudder fully down and the cable to the movement of the tail wheel will bemaxed, and the rudder will have hardly moved, when the tail lifts off and youhave a cross wind you have no rudder control, because the cable on the rudderhas hardly moved at half the forward distant. and you need a bunch of forwardspeed to take up the long dwell time, getting off the ground,and with very littlerudder control.Pieti LowellRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________

Original Posted By: Michael Perez
Mr. Cuy is right on. That brace prevents the front seat from racking side-to-side.Greg Cardinal ----- Original Message -----

Original Posted By: Ben Charvet

Original Posted By: Pieti Lowell
Petri,I assume that you have springs at the end of the tailwheel cables, to the tailwheel?The springs allow continued travel of the rudder past the maxing of the tailwheel.walt evansNX140DL ----- Original Message -----

Original Posted By:> ** owner-pietenpol-list-server(at)matronics.com
>> Mikemy gut tells me that it needs to extend to the sides of> the fuselage because it acts as a fuselage bulkhead/ twisting>> stiffener if Im picturing your question correctly in my head.>> Mike C.>