Original Posted By: "carson"
Subject: Re: Pietenpol-List: Plane sitting: need list advice on elevator controlWell gang, I'm back from the airfield, and things look pretty good. I pulled the bell crank and handed it over to the resident "master machinist/welder/shop supervisor" and he said "that's unserviceable - but we'll MAKE it serviceable and STRONGER". He heated it a bit, straightened it, reformed it, then welded a stiffener along the length of the horn that was damaged. It is heavier than the original, but quite strong. It looked true from every angle, but the proof was in the pudding...Inspection of the wood showed no problems. It appears that the horn and the ear tabs of the bell crank, which had been quite deformed, took all the strain.I bolted the repaired bell crank back in and connected the cables. Astoundingly, all the holes lined up in the wood, and there was no slack in the cables. I guess you just can't beat 30 years of machining, welding, and fabricating in the field and shop. I would have bet any amount of my wife's paycheck that we would end the day with having to build a totally new one.Tomorrow I patch the fabric, and then maybe, go flying on the first!Thanks for all the input,Jeff>>>Chris wrote->>>Without seeing the damaged horn I would be hesitant to weld on a patch>>to repair the horn. Seems like this is an important part of the plane>>that contributes to a gentle return to earth.>>That was my feeling about my rudder horn so I was good and ready to>make a new one. However, my master machinist/welder/shop supervisor>looked it over and told me that I wouldn't need to heat the part before>straightening it out and working it back into its "airfoil" shape>since it had not deformed that severely. As I say, we were good and>ready to make a new part but it was not deemed necessary once we worked>it back out to original shape and dressed it. Hopefully, Jeff's can>be worked back out too.>>I think the slack cable situation will end up being Case #3 of the>scenarios he laid out... either crushed or broken wood. And yet, that's>the nice thing about wood: there are many ways to repair it.>>Oscar Zuniga>Air Camper NX41CC>San Antonio, TX>mailto: taildrags(at)hotmail.com>website at http://www.flysquirrel.net>-- ---Jeffrey H. Boatright, Ph.D.Associate Professor of OphthalmologyEmory University School of MedicineEditor-in-ChiefMolecular Vision________________________________________________________________________________Subject: Pietenpol-List: Made a mistake
Pietenpol-List: Made a mistake
Original Posted By: "Peter W Johnson"
Hi all firstly all the best for the new year and i hope much building shall bedone by all.I sat my tail on the fuse the other day and realized that I stuffed up the placementof the main spar by one inch so the spar on the horizontal and verticalstabs don't line up,the metal bracket has 2 bolts in the vertical but with mymistake I can only get one in and the other would only go through the gussets.I am thinking that I could turn the bracket the other way and have 2 bolts in theHorizontal stab and 1 in the verticalMy question is would this cause problems or do the cables take most of the sideloads?Or should I just make a new fin and hang this one on the wall as a testament tomy stupidity.ThanksCarsonRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Hi all firstly all the best for the new year and i hope much building shall bedone by all.I sat my tail on the fuse the other day and realized that I stuffed up the placementof the main spar by one inch so the spar on the horizontal and verticalstabs don't line up,the metal bracket has 2 bolts in the vertical but with mymistake I can only get one in and the other would only go through the gussets.I am thinking that I could turn the bracket the other way and have 2 bolts in theHorizontal stab and 1 in the verticalMy question is would this cause problems or do the cables take most of the sideloads?Or should I just make a new fin and hang this one on the wall as a testament tomy stupidity.ThanksCarsonRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
RE: Pietenpol-List: Made a mistake
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Carson,You could fill the space behind the gusset in the front of the vertical sparwith spruce glued in place? The bracing wires take a lot of the load.CheersHave a good one.PeterWonthaggi Australiahttp://www.cpc-world.com-----Original Message-----
Carson,You could fill the space behind the gusset in the front of the vertical sparwith spruce glued in place? The bracing wires take a lot of the load.CheersHave a good one.PeterWonthaggi Australiahttp://www.cpc-world.com-----Original Message-----
Re: Pietenpol-List: Plane sitting: need list advice on elevator control
Original Posted By: "Jeff Boatright"
Jeff, I've been following your wow's and although I really felt for you, there wasn't anything I could add to the expert advice you were already getting. It really pleases me to read that you took care of your problem and chances are you will be flying tomorrow. I too will be flying tomorrow. What a way to start off a new year.!Life is goodGene----- Original Message -----
Jeff, I've been following your wow's and although I really felt for you, there wasn't anything I could add to the expert advice you were already getting. It really pleases me to read that you took care of your problem and chances are you will be flying tomorrow. I too will be flying tomorrow. What a way to start off a new year.!Life is goodGene----- Original Message -----
RE: Pietenpol-List: Made a mistake
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Can you send a picture? I think Peter is right - you can probably fill thespace between the gussets with spruce and be fine.Jack PhillipsNX899JP-----Original Message-----
Can you send a picture? I think Peter is right - you can probably fill thespace between the gussets with spruce and be fine.Jack PhillipsNX899JP-----Original Message-----
Pietenpol-List: Re: Made a mistake
Original Posted By: "Don Emch"
Jeff; good on ya, mate! Doesn't it feel much better to know that yousaw the damage, repaired it, and it will soon be good as new, with nodoubt about its airworthiness?The saying is true, you get the best stories from people when you askhow they got a scar ;o) "Icarus Plummet" has been there, so has 41CC,so have others who have experienced cracks, crunches, rips, spills, falls, and other things that seemed like the end of the world at thetime but ended up with new knowledge and experience. Shoot, the FAAeven wrote and published a whole book about it... "AC43.13- AcceptableMethods, Techniques, and Practices- Aircraft Alterations".Oscar ZunigaAir Camper NX41CCSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________Subject: Pietenpol-List: Re: Made a mistake
Jeff; good on ya, mate! Doesn't it feel much better to know that yousaw the damage, repaired it, and it will soon be good as new, with nodoubt about its airworthiness?The saying is true, you get the best stories from people when you askhow they got a scar ;o) "Icarus Plummet" has been there, so has 41CC,so have others who have experienced cracks, crunches, rips, spills, falls, and other things that seemed like the end of the world at thetime but ended up with new knowledge and experience. Shoot, the FAAeven wrote and published a whole book about it... "AC43.13- AcceptableMethods, Techniques, and Practices- Aircraft Alterations".Oscar ZunigaAir Camper NX41CCSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________Subject: Pietenpol-List: Re: Made a mistake
Pietenpol-List: Re: Made a mistake
Original Posted By: "Don Emch"
I like Jack's idea... picture? But it sounds like you can use it. The cablestake up the side load. The fittings are really just an anchor. Once again I redefined cold for myself yesterday. Somewhere in the low 30s, butI got about a half hour fix in. I don't know how the guys that don't fly throughthe Winter do it. Gotta get my fix. Snow today... skis tomorrow?Happy New Year!Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Made a mistake
I like Jack's idea... picture? But it sounds like you can use it. The cablestake up the side load. The fittings are really just an anchor. Once again I redefined cold for myself yesterday. Somewhere in the low 30s, butI got about a half hour fix in. I don't know how the guys that don't fly throughthe Winter do it. Gotta get my fix. Snow today... skis tomorrow?Happy New Year!Don EmchNX899DERead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Made a mistake
Original Posted By: Steve Eldredge
By the way Carson... It says an awful lot about you as a builder to admit a mistaketo everyone and be open to their suggestions as to how to fix. Very respectable!DonRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
By the way Carson... It says an awful lot about you as a builder to admit a mistaketo everyone and be open to their suggestions as to how to fix. Very respectable!DonRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Pietenpol-List: Re: Made a mistake
Original Posted By: "Clif Dawson"
Thanks for the replies I was worried about adding extra weight down there do youguys think a small block would do or should i run it all the way up to the backof the leading edge.Here's some pic'sCarsonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/piet ... __________
Thanks for the replies I was worried about adding extra weight down there do youguys think a small block would do or should i run it all the way up to the backof the leading edge.Here's some pic'sCarsonRead this topic online here:http://forums.matronics.com/viewtopic.p ... ttachments: http://forums.matronics.com//files/piet ... __________
Re: Pietenpol-List: Re: Made a mistake
Original Posted By: "Peter W Johnson"
It doesn't have to be any longer than will take the topbolt hole. Since the fin is captured by the stabilizerthe only movement the bolts resist is upward. Thebolt is then pressing downward in compression on thewood under the bolt.Nobody makes mistreaks here! :-)Clif Happy New Year!"I have not failed. I've just found 10,000 ways that won't work."Thomas Edison>do you guys think a small block would do or should i run it all the way up to the back of the leading edge.> Here's some pic's> Carson________________________________________________________________________________
It doesn't have to be any longer than will take the topbolt hole. Since the fin is captured by the stabilizerthe only movement the bolts resist is upward. Thebolt is then pressing downward in compression on thewood under the bolt.Nobody makes mistreaks here! :-)Clif Happy New Year!"I have not failed. I've just found 10,000 ways that won't work."Thomas Edison>do you guys think a small block would do or should i run it all the way up to the back of the leading edge.> Here's some pic's> Carson________________________________________________________________________________
RE: Pietenpol-List: Re: Made a mistake
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Carson,Looks like a 1 1/2" triangular block would do nicely.CheersPeter-----Original Message-----
Carson,Looks like a 1 1/2" triangular block would do nicely.CheersPeter-----Original Message-----
RE: Pietenpol-List: Re: Made a mistake
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Hi Carson,I would just add a small block of spruce to fill the gap between thegussets. It only needs to be long enough to give good edge distance on thebolt hole for the top bolt. The only weight added will be a few grams ofspruce and epoxy.Another thing to think about before bolting the fin in place is whether ornot to provide an offset to counteract torque. I put two sets of bolt holesin my stabilizer - one to make the fin right on the centerline, the other toshift the leading edge of the fin an inch to the left of the centerline. Ioriginally assembled it with the fin offset and have not changed it. I wishI had made the holes such that it would be 1-1/2" off the centerline andthat would be about right (I have a 65 Continental, it would be differentand in the opposite direction if you have a Corvair). I still have to holdjust a bit of right rudder in cruise.Jack PhillipsNX899JPRaleigh, NC-----Original Message-----
Hi Carson,I would just add a small block of spruce to fill the gap between thegussets. It only needs to be long enough to give good edge distance on thebolt hole for the top bolt. The only weight added will be a few grams ofspruce and epoxy.Another thing to think about before bolting the fin in place is whether ornot to provide an offset to counteract torque. I put two sets of bolt holesin my stabilizer - one to make the fin right on the centerline, the other toshift the leading edge of the fin an inch to the left of the centerline. Ioriginally assembled it with the fin offset and have not changed it. I wishI had made the holes such that it would be 1-1/2" off the centerline andthat would be about right (I have a 65 Continental, it would be differentand in the opposite direction if you have a Corvair). I still have to holdjust a bit of right rudder in cruise.Jack PhillipsNX899JPRaleigh, NC-----Original Message-----
Pietenpol-List: Re: Made a mistake
Original Posted By: "walt"
Pietenpol-List: Re: Made a mistake
Original Posted By: "Mild Bill"
Link didn't work for me.I brought up the main page for the site and searched for Fairchild 51 but mostof the aircraft shots were of an A-10 in formation with a P-51, none of the veryfew other Fairchild planes was a 51.--------Bill FrankRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Made a mistake
Link didn't work for me.I brought up the main page for the site and searched for Fairchild 51 but mostof the aircraft shots were of an A-10 in formation with a P-51, none of the veryfew other Fairchild planes was a 51.--------Bill FrankRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Made a mistake
Original Posted By: "Clif Dawson"
Jack - why not add a trim tab?--------Bill FrankRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Jack - why not add a trim tab?--------Bill FrankRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________