Pietenpol-List Digest Archive

Wed 01/06/10


Total Messages Posted: 28



Today's Message Index:
----------------------
 
     1. 04:07 AM - Covering the edge of the cockpit coaming (John Smoyer)
     2. 05:34 AM - Re: Covering the edge of the cockpit coaming (wildhorsesracing)
     3. 05:38 AM - Re: Covering the edge of the cockpit coaming (Jack Phillips)
     4. 06:33 AM - Piet People near Austin & Replies to 50 Hour Report Post (kevinpurtee)
     5. 08:22 AM - Re: Using half of the tail cables? (long winded) (Bill Church)
     6. 08:33 AM - Jim's Louisville visit (Douwe Blumberg)
     7. 09:00 AM - Re: Corvair Piet Oil Cooler locations? (Frank Metcalfe)
     8. 09:44 AM - Re: Re: Using half of the tail cables? (long winded) (Michael Perez)
     9. 09:48 AM - Re: Piet People near Austin & Replies to 50 Hour 	Report Post (Ken Chambers)
    10. 10:11 AM - Re: Corvair Piet Oil Cooler locations? (V Groah)
    11. 10:33 AM - Motorcycle Link for Clevis (K5YAC)
    12. 10:39 AM - Re: Corvair Piet Oil Cooler locations? (H RULE)
    13. 10:43 AM - Re: Re: Using half of the tail cables? (long winded) (Ryan Mueller)
    14. 11:14 AM - While we are talking cables... (Michael Perez)
    15. 11:15 AM - Re: Re: Using half of the tail cables? (long winded) (Michael Perez)
    16. 11:49 AM - tail bracing (Cuy, Michael D. (GRC-RXD0)[ASRC Aerospace Corporation])
    17. 11:49 AM - Re: Motorcycle Link for Clevis (Richard Schreiber)
    18. 12:03 PM - Re: Motorcycle Link for Clevis (K5YAC)
    19. 12:24 PM - Re: Re: Using half of the tail cables? (long winded) (Dan Yocum)
    20. 12:45 PM - Re: Re: Using half of the tail cables? (long winded) (Michael Perez)
    21. 12:49 PM - Re: Motorcycle Link for Clevis (Bill Church)
    22. 12:59 PM - Re: Motorcycle Link for Clevis (K5YAC)
    23. 12:59 PM - Re: Using half of the tail cables? (long winded) (Bill Church)
    24. 01:01 PM - Re: Re: Using half of the tail cables? (long winded) (Dan Yocum)
    25. 01:47 PM - Re: Re: Using half of the tail cables? (long winded) (Ryan Mueller)
    26. 04:08 PM - Re: Lee Bottom field.... (wayne@taildraggersinc.com)
    27. 05:37 PM - Re: Motorcycle Link for Clevis (Lagowski Morrow)
    28. 06:51 PM - airworthiness papers display (Douwe Blumberg)
 
 
 


Message 1


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    Time: 04:07:57 AM PST US
    From: John Smoyer <mox499@yahoo.com>
    Subject: Covering the edge of the cockpit coaming
    By coaming, I mean the sheet metal that surrounds the instrument panel and the cockpit, down to the upper longeron and back to the turtle deck. I thought of covering the sharp edges of the sheet metal with Armaflex foam, as used to insulate home water pipes, then wrapping the Armaflex with leather. Then I would secure the leather and foam to the coaming with leather lacing. I've made many trial attempts at wrapping the Armaflex, using scrap vinyl and cloth, but the material bunches and pulls. I'm sure the wrapping material has to be cut out on a curve, but I can't figure out what the curve should be. Any suggestions among you guys? Any patterns available? Thanks for your help. John Smoyer


    Message 2


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    Time: 05:34:07 AM PST US
    From: wildhorsesracing <wildhorsesracing@yahoo.com>
    Subject: Re: Covering the edge of the cockpit coaming
    We have the same problem with Rollbar padding in racecars - the key is to cut little triangles out of the backside of the foam padding that is on the inside of the curve. It is similar to a woodworking technique called "kerfing". Hope this helps! -jim pantas www.wildhorsesracing.com ________________________________ From: John Smoyer <mox499@yahoo.com> Sent: Wed, January 6, 2010 7:06:47 AM Subject: Pietenpol-List: Covering the edge of the cockpit coaming By coaming, I mean the sheet metal that surrounds the instrument panel and the cockpit, down to the upper longeron and back to the turtle deck. I thought of covering the sharp edges of the sheet metal with Armaflex foam, as used to insulate home water pipes, then wrapping the Armaflex with leather. Then I would secure the leather and foam to the coaming with leather lacing. I've made many trial attempts at wrapping the Armaflex, using scrap vinyl and cloth, but the material bunches and pulls. I'm sure the wrapping material has to be cut out on a curve, but I can't figure out what the curve should be. Any suggestions among you guys? Any patterns available? Thanks for your help. John Smoyer


    Message 3


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    Time: 05:38:47 AM PST US
    From: "Jack Phillips" <pietflyr@bellsouth.net>
    Subject: Covering the edge of the cockpit coaming
    John, That was one of the more difficult tasks on the airplane (ranking up there with making the landing gear struts and the windshield frames). I used =BD=94 =93Funny pipe=94, which is black polyethylene tubing used in irrigation systems (you can buy it at Home Depot), and cut a lengthwise slit along the tubing that you can fit over the cut edge of the aluminum. Then put your armaflex foam over that. See where the foam ends when pushing the funny pipe hard against the aluminum to take up all the slop and then drill lacing holes in your aluminum, tight up against the foam. Once that is done, you can take your leather and start in the middle of the cockpit cutout and begin lacing, using braided nylon twine. Once all the holes have been punched, take it all apart and trim your leather. My wife sewed a hem along the edge of the leather but that is probably not necessary. Then do the final lacing with rawhide bootlaces. Pain in the rear! Here are a couple of photos. One thing I didn=92t mention is that I used a piece of aluminum angle along the longeron to give support so you can grip the coaming and put weight on it when getting in and out of the airplane. You can see how this went together with the funny pipe and the foam in the first picture. The aluminum cowling is not shown, but would slip into the slit in the funny pipe alongside the aluminum angle. Good luck! Jack Phillips NX899JP Raleigh, NC _____ From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of John Smoyer Sent: Wednesday, January 06, 2010 7:07 AM Subject: Pietenpol-List: Covering the edge of the cockpit coaming By coaming, I mean the sheet metal that surrounds the instrument panel and the cockpit, down to the upper longeron and back to the turtle deck. I thought of covering the sharp edges of the sheet metal with Armaflex foam, as used to insulate home water pipes, then wrapping the Armaflex with leather. Then I would secure the leather and foam to the coaming with leather lacing. I've made many trial attempts at wrapping the Armaflex, using scrap vinyl and cloth, but the material bunches and pulls. I'm sure the wrapping material has to be cut out on a curve, but I can't figure out what the curve should be. Any suggestions among you guys? Any patterns available? Thanks for your help. John Smoyer


    Message 4


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    Time: 06:33:00 AM PST US
    Subject: Piet People near Austin & Replies to 50 Hour Report Post
    From: "kevinpurtee" <kevin.purtee@us.army.mil>
    Austinites - If there's a nice weekend when folks are available I'll bring it here for show and tell. Let me know if there's interest. (I'm hoping to get a local hangar someday so I can quit driving 3 hours to Houston to fly. Currently on several waiting lists.) Tim Willis - I'm the Aviation Safety Officer for TX Army Nat'l Guard and fly Apaches for them. Call me when you'd like to get together: 512-422-6371. Ken Chambers - See above. I love showing it off. Speedbrake - (caution, editorial) we gotta get out & fly 'em when they're done. Some guys don't do that. Sometimes those flights may be challenging and feel like work. That's ok. Set limits, be smart, but go fly. That makes us better pilots and proves the airplane. Respectfully submitted. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=280348#280348


    Message 5


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    Time: 08:22:40 AM PST US
    Subject: Re: Using half of the tail cables? (long winded)
    From: "Bill Church" <billspiet@sympatico.ca>
    This is confusing. You ask why you would need the cables to adjust the leading edge, and then you say that you would just shim the horizontal stab at the leading edge and re-adjust the cable tension to suit. That sounds to me like you're going to need your cables to adjust the leading edge. Every time the shimming is adjusted, all of your cable tensions will need to be adjusted as well, since the cable attachment points are not the same as the stab pivot point. A simple and effective method used by many builders for fine tuning the tail incidence , is achieved by simply adjusting the bracing cables, which DOES put a slight twist into the horizontal stab - but it is minor (probably visually imperceptible unless you're looking for it) - it is only for fine tuning. So, the short answer to your original question: "Sound, worthy idea or a waste?" would be the latter, but I guess you've already come to that conclusion. There are alternate methods possible, but turnbuckles are likely the most practical solution. If you use a swaged stud with a threaded fork, it will look nice and clean, but you'll have a difficult time making adjustments, as you'll have to disconnect the fork from the bracket, turn in or out the adjustment, then pull the cable tight to re-insert the clevis pin (assuming - probably incorrectly - that you're planning to use a traditional method of fastening the fork, with clevis pins). With turnbuckles, the tension adjustments are done with all of the cables in place. Bill C. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=280363#280363


    Message 6


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    Time: 08:33:25 AM PST US
    From: Douwe Blumberg <douweblumberg@earthlink.net>
    Subject: Jim's Louisville visit
    Hey Jim, We are under two hours from downtown Louisville,(up 71 towards Cinci) and my Piet is here at my studio. Might be a bit of a treck, but we'd feed you it you think you can make it out. Douwe


    Message 7


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    Time: 09:00:24 AM PST US
    From: Frank Metcalfe <fmetcalf@bellsouth.net>
    Subject: Re: Corvair Piet Oil Cooler locations?
    Cowlings Big Piet Picture=0A=0A=0A=0A=0A________________________________=0A From: Michael Groah <dskogrover@yahoo.com>=0ATo: pietenpol-list@matronics.c om=0ASent: Wed, December 30, 2009 11:59:59 AM=0ASubject: Re: Pietenpol-List : Corvair Piet Oil Cooler locations?=0A=0A=0AI agree the engine looks great Barry.- Do you have any cowling pics of your plane?- I'd like to see s ome pics of how you did the cowling with the corvair and scoops.- My plan has always been to remote mount the oil cooler (maybe under the engine) an d thus I've made some cooling scoops already like you with the wired edge a nd all. (you're right it's not that hard to do-but it is easier with the ri ght tools.)=0A=0AA big thank you to everyone who has responded to my call f or assistance.- If anyone comes up with other pics or ideas or remote mou nted oil coolers or corvair cowls with the scoops, send them my way.- =0A =0AThanks=0A=0AMike Groah=0ATulare CA=0A(going to go help my father-in-law work on his RV8A today, but I hope to get back in time to get a little Piet work in today)=0A=0A=0A________________________________=0AFrom: Barry Davi s <bed@mindspring.com>=0ATo: pietenpol-list@matronics.com=0ASent: Wed, Dece mber 30, 2009 8:01:44 AM=0ASubject: RE: Pietenpol-List: Corvair Piet Oil Co ed@mindspring.com>=0A=0AYep, they have the wire rolled in on the edges. Not really very hard to do.=0ABarry =0A=0A-----Original Message-----=0AFrom: o wner-pietenpol-list-server@matronics.com=0A[mailto:owner-pietenpol-list-ser ver@matronics.com] On Behalf Of Jeff=0ABoatright=0ASent: Wednesday, Decembe r 30, 2009 10:28 AM=0ATo: pietenpol-list@matronics.com=0ASubject: RE: Piete npol-List: Corvair Piet Oil Cooler locations?=0A=0A--> Pietenpol-List messa -========================


    Message 8


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    Time: 09:44:38 AM PST US
    From: Michael Perez <speedbrake@sbcglobal.net>
    Subject: Re: Using half of the tail cables? (long winded)
    Bill, my response was based on the previous email reply, not a direct quest ion of why cables are needed for adjustment. I took Shad's email as meaning , use the cables only to move the leading edge. That may not have been his intent, so I asked. There was no mention-of shimming. No mention was made about fine tuning either. I would not use the cables to adjust the leading edge of anything. The shim is the adjustment, the cables are the support. It sounded to me that, if the tail was not flying well, that the cables wou ld be adjusted to twist the thing.-I am not a fan of twist. I believe my email explained itself quite well. Shim as needed, adjust cables to proper tension/correct alignment. - "...insert the clevis pin (assuming - probably incorrectly - that you're pl anning to use a traditional method of fastening the fork, with clevis pins) . " - I thought I would make some balsa wood pins to slip into the fork and hold it there with thread. - As I stated, I have a handle on it now. - - - --- On Wed, 1/6/10, Bill Church <billspiet@sympatico.ca> wrote: From: Bill Church <billspiet@sympatico.ca> Subject: Pietenpol-List: Re: Using half of the tail cables? (long winded) > This is confusing. You ask why you would need the cables to adjust the leading edge, and then you say that you would just shim the horizontal stab at the leading edge an d re-adjust the cable tension to suit. That sounds to me like you're going to need your cables to adjust the leading edge. Every time the shimming is adjusted, all of your cable tensions will need t o be adjusted as well, since the cable attachment points are not the same a s the stab pivot point. A simple and effective method used by many builders for fine tuning the tai l incidence , is achieved by simply adjusting the bracing cables, which DOE S put a slight twist into the horizontal stab - but it is minor (probably v isually imperceptible unless you're looking for it) - it is only for fine t uning. So, the short answer to your original question: "Sound, worthy idea or a waste?" would be the latter, but I guess you've already come to that conclusion. There are alternate methods possible, but turnbuckles are likely the most p ractical solution. If you use a swaged stud with a threaded fork, it will l ook nice and clean, but you'll have a difficult time making adjustments, as you'll have to disconnect the fork from the bracket, turn in or out the ad justment, then pull the cable tight to re-With turnbuckles, the tension adj ustments are done with all of the cables in place. Bill C. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=280363#280363 le, List Admin.


    Message 9


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    Time: 09:48:32 AM PST US
    Subject: Re: Piet People near Austin & Replies to 50 Hour Report
    Post
    From: Ken Chambers <ken.riffic@gmail.com>
    I'm open most weekends and I've love to hear her roar. Ken On Wed, Jan 6, 2010 at 8:32 AM, kevinpurtee <kevin.purtee@us.army.mil>wrote: > kevin.purtee@us.army.mil> > > Austinites - If there's a nice weekend when folks are available I'll bring > it here for show and tell. Let me know if there's interest. (I'm hoping to > get a local hangar someday so I can quit driving 3 hours to Houston to fly. > Currently on several waiting lists.) > > Tim Willis - I'm the Aviation Safety Officer for TX Army Nat'l Guard and > fly Apaches for them. Call me when you'd like to get together: > 512-422-6371. > > Ken Chambers - See above. I love showing it off. > > Speedbrake - (caution, editorial) we gotta get out & fly 'em when they're > done. Some guys don't do that. Sometimes those flights may be challenging > and feel like work. That's ok. Set limits, be smart, but go fly. That > makes us better pilots and proves the airplane. Respectfully submitted. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=280348#280348 > > -- Ken Chambers 512-796-1798


    Message 10


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    Time: 10:11:45 AM PST US
    From: V Groah <vgroah@hotmail.com>
    Subject: Corvair Piet Oil Cooler locations?
    Great looking plane! I like the cowling. Mike and I are working on our pl ane together. It is really his plane but I have been caught up in the proj ect as it is being built in my shop. He has asked me to start on the cowli ng. My question is what kind of edge did you use in the opening around the cooling scoops and intake manifold. Is that a wired edge=2C a hemmed edge ??? Also the front piece appears that it could be a compound formed piec e or it could be coned like a funnel?? What ever you did it looks good. T hanks so much for the help. Vic Groah From: fmetcalf@bellsouth.net Subject: Re: Pietenpol-List: Corvair Piet Oil Cooler locations? Cowlings Big Piet Picture From: Michael Groah <dskogrover@yahoo.com> Sent: Wed=2C December 30=2C 2009 11:59:59 AM Subject: Re: Pietenpol-List: Corvair Piet Oil Cooler locations? I agree the engine looks great Barry. Do you have any cowling pics of your plane? I'd like to see some pics of how you did the cowling with the corv air and scoops. My plan has always been to remote mount the oil cooler (ma ybe under the engine) and thus I've made some cooling scoops already like y ou with the wired edge and all. (you're right it's not that hard to do-but it is easier with the right tools.) A big thank you to everyone who has responded to my call for assistance. I f anyone comes up with other pics or ideas or remote mounted oil coolers or corvair cowls with the scoops=2C send them my way. Thanks Mike Groah Tulare CA (going to go help my father-in-law work on his RV8A today=2C but I hope to get back in time to get a little Piet work in today) From: Barry Davis <bed@mindspring.com> Sent: Wed=2C December 30=2C 2009 8:01:44 AM Subject: RE: Pietenpol-List: Corvair Piet Oil Cooler locations? Yep=2C they have the wire rolled in on the edges. Not really very hard to d o. Barry -----Original Message----- From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Jeff Boatright Sent: Wednesday=2C December 30=2C 2009 10:28 AM Subject: RE: Pietenpol-List: Corvair Piet Oil Cooler locations? www.aeroelectric.com< * HomebuiltHELP www.howtocri--> http://www.matronic s.com/Navigator?Pietenpol-List======== _________________________________________________________________ Hotmail: Trusted email with powerful SPAM protection.


    Message 11


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    Time: 10:33:41 AM PST US
    Subject: Motorcycle Link for Clevis
    From: "K5YAC" <hangar10@cox.net>
    I've noticed that several people have used chain master links in place of clevises, which are obviously plenty strong for the task, but I can't figure out what series or type of chain these links are from. I run a 520 series chain on my enduro motorcycle, which I believe is one of the largest of the motorcycle varieties but the links that I've seen used in place of clevises are elongated, and most likely not used on a motorcycle drive. Anyone know whey type of chain these links are from, or where I can find some? -------- Mark - working on wings Read this topic online here: http://forums.matronics.com/viewtopic.php?p=280389#280389


    Message 12


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    Time: 10:39:30 AM PST US
    From: H RULE <harvey.rule@rogers.com>
    Subject: Re: Corvair Piet Oil Cooler locations?
    Real nice looking Piet!=0A=0A=0A=0A=0A________________________________=0AFr om: Frank Metcalfe <fmetcalf@bellsouth.net>=0ATo: pietenpol-list@matronics. com=0ASent: Wed, January 6, 2010 11:59:02 AM=0ASubject: Re: Pietenpol-List: Corvair Piet Oil Cooler locations?=0A=0A=0ACowlings Big Piet Picture=0A=0A =0A=0A=0A________________________________=0AFrom: Michael Groah <dskogrover @yahoo.com>=0ATo: pietenpol-list@matronics.com=0ASent: Wed, December 30, 20 09 11:59:59 AM=0ASubject: Re: Pietenpol-List: Corvair Piet Oil Cooler locat ions?=0A=0A=0AI agree the engine looks great Barry.- Do you have any cowl ing pics of your plane?- I'd like to see some pics of how you did the cow ling with the corvair and scoops.- My plan has always been to remote moun t the oil cooler (maybe under the engine) and thus I've made some cooling s coops already like you with the wired edge and all. (you're right it's not that hard to do-but it is easier with the right tools.)=0A=0AA big thank yo u to everyone who has responded to my call for assistance.- If anyone com es up with other pics or ideas or remote mounted oil coolers or corvair cow ls with the scoops, send them my way.- =0A=0AThanks=0A=0AMike Groah=0ATul are CA=0A(going to go help my father-in-law work on his RV8A today, but I h ope to get back in time to get a little Piet work in today)=0A=0A=0A_______ _________________________=0AFrom: Barry Davis <bed@mindspring.com>=0ATo: pi etenpol-list@matronics.com=0ASent: Wed, December 30, 2009 8:01:44 AM=0ASubj ect: RE: Pietenpol-List: Corvair Piet Oil Cooler locations?=0A=0A--> Pieten pol-List message posted by: "Barry Davis" <bed@mindspring.com>=0A=0AYep, th ey have the wire rolled in on the edges. Not really very hard to do.=0ABarr y =0A=0A-----Original Message-----=0AFrom: owner-pietenpol-list-server@matr onics.com=0A[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Jeff=0ABoatright=0ASent: Wednesday, December 30, 2009 10:28 AM=0ATo: piete npol-list@matronics.com=0ASubject: RE: Pietenpol-List: Corvair Piet Oil Coo roelectric.com< * HomebuiltHELP www.howtocri--> http://www.matronics.com/ Navigator?Pietenpol-List========


    Message 13


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    Time: 10:43:34 AM PST US
    Subject: Re: Using half of the tail cables? (long winded)
    From: Ryan Mueller <rmueller23@gmail.com>
    One of the other things that I think Bill was pointing out in his post, which I didn't catch on the first read through, is that if you are going to adjust the tail by shimming the front of the horizontal stab you will then have to adjust the tension for all of your empennage control cables. If you raise the front of the stab, the upper elevator control horn attach points are now slightly farther away from the bellcrank, and the lower attach points are slightly closer. The rudder control cable would probably need a bit of tweaking as well. Unless poor flying characteristics require you to make gross adjustments by shimming the stab (and is there evidence that a Piet built dimensionally to plans with the CG in the proper range is going to need that?), it would be probably be easier and quicker to adjust a couple cables via turnbuckles on the tail than it would be to install different shims on the stab and have to readjust the tension on 6 control cables.... Ryan On Wed, Jan 6, 2010 at 11:41 AM, Michael Perez <speedbrake@sbcglobal.net>wrote: > Bill, my response was based on the previous email reply, not a direct > question of why cables are needed for adjustment. I took Shad's email as > meaning, use the cables only to move the leading edge. That may not have > been his intent, so I asked. There was no mention of shimming. No mention > was made about fine tuning either. I would not use the cables to adjust the > leading edge of anything. The shim is the adjustment, the cables are the > support. It sounded to me that, if the tail was not flying well, that the > cables would be adjusted to twist the thing. I am not a fan of twist. I > believe my email explained itself quite well. Shim as needed, adjust cables > to proper tension/correct alignment. > > "...insert the clevis pin (assuming - probably incorrectly - that you're > planning to use a traditional method of fastening the fork, with clevis > pins). " > > I thought I would make some balsa wood pins to slip into the fork and hold > it there with thread. > > As I stated, I have a handle on it now. > > > --- On *Wed, 1/6/10, Bill Church <billspiet@sympatico.ca>* wrote: > > > From: Bill Church <billspiet@sympatico.ca> > Subject: Pietenpol-List: Re: Using half of the tail cables? (long winded) > To: pietenpol-list@matronics.com > Date: Wednesday, January 6, 2010, 11:22 AM > > billspiet@sympatico.ca<http://us.mc833.mail.yahoo.com/mc/compose?to=billspiet@sympatico.ca> > > > > This is confusing. > You ask why you would need the cables to adjust the leading edge, and then > you say that you would just shim the horizontal stab at the leading edge and > re-adjust the cable tension to suit. That sounds to me like you're going to > need your cables to adjust the leading edge. > Every time the shimming is adjusted, all of your cable tensions will need > to be adjusted as well, since the cable attachment points are not the same > as the stab pivot point. > A simple and effective method used by many builders for fine tuning the > tail incidence , is achieved by simply adjusting the bracing cables, which > DOES put a slight twist into the horizontal stab - but it is minor (probably > visually imperceptible unless you're looking for it) - it is only for fine > tuning. > > So, the short answer to your original question: > "Sound, worthy idea or a waste?" > would be the latter, but I guess you've already come to that conclusion. > > There are alternate methods possible, but turnbuckles are likely the most > practical solution. If you use a swaged stud with a threaded fork, it will > look nice and clean, but you'll have a difficult time making adjustments, as > you'll have to disconnect the fork from the bracket, turn in or out the > adjustment, then pull the cable tight to re-With turnbuckles, the tension > adjustments are done with all of the cables in place. > > > Bill C. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=280363#28036= - The > Pietenpol-List Email Forum > -http://www.matronics.com/Na======================= > > > <http://forums.matronics.com/viewtopic.php?p=280363#280363> > > * > > * > >


    Message 14


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    Time: 11:14:45 AM PST US
    From: Michael Perez <speedbrake@sbcglobal.net>
    Subject: While we are talking cables...
    I have seen in the archives that some use 1/16th cable for tail bracing. Fo r those that are flying with it, are you happy? Any issues?- - To the rest of the list, do you all feel 1/16" cable is too small for contr ol cable?


    Message 15


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    Time: 11:15:24 AM PST US
    From: Michael Perez <speedbrake@sbcglobal.net>
    Subject: Re: Using half of the tail cables? (long winded)
    I concur. --- On Wed, 1/6/10, Ryan Mueller <rmueller23@gmail.com> wrote: From: Ryan Mueller <rmueller23@gmail.com> Subject: Re: Pietenpol-List: Re: Using half of the tail cables? (long winde d) One of the other things that I think Bill was pointing out in his post, whi ch I didn't catch on the first read through, is that if you are going to ad just the tail by shimming the front of the horizontal stab you will then ha ve to adjust the tension for all of your empennage control cables. If you r aise the front of the stab, the upper elevator control horn attach points a re now slightly farther away from the bellcrank, and the lower attach point s are slightly closer. The rudder control cable would probably need a bit o f tweaking as well. Unless poor flying characteristics require you to make gross adjustments by shimming the stab (and is there evidence that a Piet b uilt dimensionally to plans with the CG in the proper range is going to nee d that?), it would be probably be easier and quicker to adjust a couple cab les via turnbuckles on the tail than it would be to install different shims on the stab and have to readjust the tension on 6 control cables.... Ryan On Wed, Jan 6, 2010 at 11:41 AM, Michael Perez <speedbrake@sbcglobal.net> w rote: Bill, my response was based on the previous email reply, not a direct quest ion of why cables are needed for adjustment. I took Shad's email as meaning , use the cables only to move the leading edge. That may not have been his intent, so I asked. There was no mention-of shimming. No mention was made about fine tuning either. I would not use the cables to adjust the leading edge of anything. The shim is the adjustment, the cables are the support. It sounded to me that, if the tail was not flying well, that the cables wou ld be adjusted to twist the thing.-I am not a fan of twist. I believe my email explained itself quite well. Shim as needed, adjust cables to proper tension/correct alignment. - "...insert the clevis pin (assuming - probably incorrectly - that you're pl anning to use a traditional method of fastening the fork, with clevis pins) . " - I thought I would make some balsa wood pins to slip into the fork and hold it there with thread. - As I stated, I have a handle on it now. - - - --- On Wed, 1/6/10, Bill Church <billspiet@sympatico.ca> wrote: From: Bill Church <billspiet@sympatico.ca> Subject: Pietenpol-List: Re: Using half of the tail cables? (long winded) > This is confusing. You ask why you would need the cables to adjust the leading edge, and then you say that you would just shim the horizontal stab at the leading edge an d re-adjust the cable tension to suit. That sounds to me like you're going to need your cables to adjust the leading edge. Every time the shimming is adjusted, all of your cable tensions will need t o be adjusted as well, since the cable attachment points are not the same a s the stab pivot point. A simple and effective method used by many builders for fine tuning the tai l incidence , is achieved by simply adjusting the bracing cables, which DOE S put a slight twist into the horizontal stab - but it is minor (probably v isually imperceptible unless you're looking for it) - it is only for fine t uning. So, the short answer to your original question: "Sound, worthy idea or a waste?" would be the latter, but I guess you've already come to that conclusion. There are alternate methods possible, but turnbuckles are likely the most p ractical solution. If you use a swaged stud with a threaded fork, it will l ook nice and clean, but you'll have a difficult time making adjustments, as you'll have to disconnect the fork from the bracket, turn in or out the ad justment, then pull the cable tight to re-With turnbuckles, the tension adj ustments are done with all of the cables in place. Bill C. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=280363#28036=- - - - - - The Pietenpol-List Email Forum -http://www.matronics.com/Na== ===================== " target="_blank">http://www.matronics.com/Navigator?Pietenpol-List tp://forums.matronics.com _blank">http://www.matronics.com/contribution


    Message 16


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    Time: 11:49:09 AM PST US
    From: "Cuy, Michael D. (GRC-RXD0)[ASRC Aerospace Corporation]" <michael.d.cuy@nasa.gov>
    Subject: tail bracing
    There is a TON of propwash over the tailfeathers that is CONSTANTLY vibrati ng all the brace cables , elevator, and rudder cables. I would stick with the 3/32 on the tailf eathers and also from the bellcrank back to the elevator controls. When I look over my shoulder I'm amazed at how much the propwash messes wit h everything back there. So just like you do when you have a forced night landing "if you don't like what you see......turn the landing light off" Mike C. PS-On the other hand I've seen many Piets using 1/8" tail brace cable and a ileron cable which to me is just overkill and is a weight penalty to boot. No offense to those seeking mo re security though using the 1/8" cables--- by all means that beats risking your life going too thin just to save a few o z.


    Message 17


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    Time: 11:49:37 AM PST US
    From: "Richard Schreiber" <lmforge@earthlink.net>
    Subject: Motorcycle Link for Clevis
    Mark: The chain is a ANSI #50 roller chain for 3/16" clevis pins and bolts. You can get it here ==> http://www.mcmaster.com/#ansi-single-strand-roller-chain/=59cxim or here ===> http://www.tractorsupply.com/. I wound up using left over chain from work and from friends. Just grind of the heads of the link pins and drive them out, or use a chain breaker. Rick Schreiber > [Original Message] > From: K5YAC <hangar10@cox.net> > To: <pietenpol-list@matronics.com> > Date: 1/6/2010 12:36:48 PM > Subject: Pietenpol-List: Motorcycle Link for Clevis > > > I've noticed that several people have used chain master links in place of clevises, which are obviously plenty strong for the task, but I can't figure out what series or type of chain these links are from. I run a 520 series chain on my enduro motorcycle, which I believe is one of the largest of the motorcycle varieties but the links that I've seen used in place of clevises are elongated, and most likely not used on a motorcycle drive. > > Anyone know whey type of chain these links are from, or where I can find some? > > -------- > Mark - working on wings > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=280389#280389 > >


    Message 18


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    Time: 12:03:39 PM PST US
    Subject: Re: Motorcycle Link for Clevis
    From: "K5YAC" <hangar10@cox.net>
    Thanks Rick... I'll check em out. -------- Mark - working on wings Read this topic online here: http://forums.matronics.com/viewtopic.php?p=280406#280406


    Message 19


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    Time: 12:24:25 PM PST US
    From: Dan Yocum <yocum@fnal.gov>
    Subject: Re: Using half of the tail cables? (long winded)
    I don't concur. If you increase the angle of incidence of the horizontal stabilizer, the pivot point is the rear edge of the stabilizer. The elevator is behind that pivot point, it will still be in the same position as before and the control cables won't need to be adjusted at all. Dan Michael Perez wrote: > I concur. > > --- On *Wed, 1/6/10, Ryan Mueller /<rmueller23@gmail.com>/* wrote: > > > From: Ryan Mueller <rmueller23@gmail.com> > Subject: Re: Pietenpol-List: Re: Using half of the tail cables? > (long winded) > To: pietenpol-list@matronics.com > Date: Wednesday, January 6, 2010, 1:42 PM > > One of the other things that I think Bill was pointing out in his > post, which I didn't catch on the first read through, is that if you > are going to adjust the tail by shimming the front of the horizontal > stab you will then have to adjust the tension for all of your > empennage control cables. If you raise the front of the stab, the > upper elevator control horn attach points are now slightly farther > away from the bellcrank, and the lower attach points are slightly > closer. The rudder control cable would probably need a bit of > tweaking as well. Unless poor flying characteristics require you to > make gross adjustments by shimming the stab (and is there evidence > that a Piet built dimensionally to plans with the CG in the proper > range is going to need that?), it would be probably be easier and > quicker to adjust a couple cables via turnbuckles on the tail than > it would be to install different shims on the stab and have to > readjust the tension on 6 control cables.... > > Ryan > > > On Wed, Jan 6, 2010 at 11:41 AM, Michael Perez > <speedbrake@sbcglobal.net > <http://us.mc833.mail.yahoo.com/mc/compose?to=speedbrake@sbcglobal.net>> > wrote: > > Bill, my response was based on the previous email reply, not a > direct question of why cables are needed for adjustment. I took > Shad's email as meaning, use the cables only to move the leading > edge. That may not have been his intent, so I asked. There was > no mention of shimming. No mention was made about fine tuning > either. I would not use the cables to adjust the leading edge of > anything. The shim is the adjustment, the cables are the > support. It sounded to me that, if the tail was not flying well, > that the cables would be adjusted to twist the thing. I am not a > fan of twist. I believe my email explained itself quite well. > Shim as needed, adjust cables to proper tension/correct alignment. > > "...insert the clevis pin (assuming - probably incorrectly - > that you're planning to use a traditional method of fastening > the fork, with clevis pins). " > > I thought I would make some balsa wood pins to slip into the > fork and hold it there with thread. > > As I stated, I have a handle on it now. > > > > > > --- On *Wed, 1/6/10, Bill Church /<billspiet@sympatico.ca > <http://us.mc833.mail.yahoo.com/mc/compose?to=billspiet@sympatico.ca>>/* > wrote: > > > From: Bill Church <billspiet@sympatico.ca > <http://us.mc833.mail.yahoo.com/mc/compose?to=billspiet@sympatico.ca>> > Subject: Pietenpol-List: Re: Using half of the tail cables? > (long winded) > To: pietenpol-list@matronics.com > <http://us.mc833.mail.yahoo.com/mc/compose?to=pietenpol-list@matronics.com> > Date: Wednesday, January 6, 2010, 11:22 AM > > <billspiet@sympatico.ca > <http://us.mc833.mail.yahoo.com/mc/compose?to=billspiet@sympatico.ca>> > > This is confusing. > You ask why you would need the cables to adjust the leading > edge, and then you say that you would just shim the > horizontal stab at the leading edge and re-adjust the cable > tension to suit. That sounds to me like you're going to need > your cables to adjust the leading edge. > Every time the shimming is adjusted, all of your cable > tensions will need to be adjusted as well, since the cable > attachment points are not the same as the stab pivot point. > A simple and effective method used by many builders for fine > tuning the tail incidence , is achieved by simply adjusting > the bracing cables, which DOES put a slight twist into the > horizontal stab - but it is minor (probably visually > imperceptible unless you're looking for it) - it is only for > fine tuning. > > So, the short answer to your original question: > "Sound, worthy idea or a waste?" > would be the latter, but I guess you've already come to that > conclusion. > > There are alternate methods possible, but turnbuckles are > likely the most practical solution. If you use a swaged stud > with a threaded fork, it will look nice and clean, but > you'll have a difficult time making adjustments, as you'll > have to disconnect the fork from the bracket, turn in or out > the adjustment, then pull the cable tight to re-With > turnbuckles, the tension adjustments are done with all of > the cables in place. > > > Bill C. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=280363#28036= > - The Pietenpol-List Email Forum > -http://www.matronics.com/Na======================= > > > <http://forums.matronics.com/viewtopic.php?p=280363#280363> > > * > > " target="_blank">http://www.matronics.com/Navigator?Pietenpol-List > tp://forums.matronics.com > _blank">http://www.matronics.com/contribution > > * > > > * > > " rel=nofollow target=_blank>http://www.matronics.com/Navigator?Pietenpol-List > et=_blank>http://forums.matronics.com > llow target=_blank>http://www.matronics.com/contribution > > * > > * > > > * -- Dan Yocum Fermilab 630.840.6509 yocum@fnal.gov, http://fermigrid.fnal.gov "I fly because it releases my mind from the tyranny of petty things."


    Message 20


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    Time: 12:45:05 PM PST US
    From: Michael Perez <speedbrake@sbcglobal.net>
    Subject: Re: Using half of the tail cables? (long winded)
    Come on Dan! I'm trying to end this thread! -


    Message 21


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    Time: 12:49:54 PM PST US
    Subject: Re: Motorcycle Link for Clevis
    From: "Bill Church" <billspiet@sympatico.ca>
    That's right, Mark. Attached is a photo that Rick Schreiber posted to the List while back, to demonstrate. Bill C. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=280420#280420 Attachments: http://forums.matronics.com//files/rich_schrieber_rudder_bar_top_1_160.jpg


    Message 22


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    Time: 12:59:03 PM PST US
    Subject: Re: Motorcycle Link for Clevis
    From: "K5YAC" <hangar10@cox.net>
    Great! Thanks Bill and Rick. I know I have seen this in a couple of places, but as usual, when I want to see them, I can't find them. I think I am going to utilize this method. -------- Mark - working on wings Read this topic online here: http://forums.matronics.com/viewtopic.php?p=280425#280425


    Message 23


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    Time: 12:59:07 PM PST US
    Subject: Re: Using half of the tail cables? (long winded)
    From: "Bill Church" <billspiet@sympatico.ca>
    Well, since my name was mentioned, I guess I have to reply. Actually, I was not referring to the control cables at all, just the bracing cables - and since the attachment points of the rear bracing cables are not in line with the pivot point (the rear edge of the stabilizer), the lengths of those cables will also change SLIGHTLY if the front edge of the stab is shimmed up or down. However, since the pivot point of the stab incidence is basically the same as the pivot point of the elevators, there shouldn't be any need to readjust the control cables. I'm done now. Bill C. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=280426#280426


    Message 24


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    Time: 01:01:38 PM PST US
    From: Dan Yocum <yocum@fnal.gov>
    Subject: Re: Using half of the tail cables? (long winded)
    But, we haven't even mentioned boiling your cables, hanging tractor weights off your horizontal stabilizer, or rebuilding your wing using the 612 Riblett design, yet. ;-) Oh, for the love of all things right and good in the world, do not archive Michael Perez wrote: > Come on Dan! I'm trying to end this thread! -- Dan Yocum Fermilab 630.840.6509 yocum@fnal.gov, http://fermigrid.fnal.gov "I fly because it releases my mind from the tyranny of petty things."


    Message 25


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    Time: 01:47:24 PM PST US
    Subject: Re: Using half of the tail cables? (long winded)
    From: Ryan Mueller <rmueller23@gmail.com>
    Yeah...I underthought that one. :P do not archive On Wed, Jan 6, 2010 at 2:17 PM, Dan Yocum <yocum@fnal.gov> wrote: > > I don't concur. > > If you increase the angle of incidence of the horizontal stabilizer, the > pivot point is the rear edge of the stabilizer. The elevator is behind that > pivot point, it will still be in the same position as before and the control > cables won't need to be adjusted at all. > > Dan > > > Michael Perez wrote: > >> I concur. >> >> --- On *Wed, 1/6/10, Ryan Mueller /<rmueller23@gmail.com>/* wrote: >> >> >> From: Ryan Mueller <rmueller23@gmail.com> >> Subject: Re: Pietenpol-List: Re: Using half of the tail cables? >> (long winded) >> To: pietenpol-list@matronics.com >> Date: Wednesday, January 6, 2010, 1:42 PM >> >> One of the other things that I think Bill was pointing out in his >> post, which I didn't catch on the first read through, is that if you >> are going to adjust the tail by shimming the front of the horizontal >> stab you will then have to adjust the tension for all of your >> empennage control cables. If you raise the front of the stab, the >> upper elevator control horn attach points are now slightly farther >> away from the bellcrank, and the lower attach points are slightly >> closer. The rudder control cable would probably need a bit of >> tweaking as well. Unless poor flying characteristics require you to >> make gross adjustments by shimming the stab (and is there evidence >> that a Piet built dimensionally to plans with the CG in the proper >> range is going to need that?), it would be probably be easier and >> quicker to adjust a couple cables via turnbuckles on the tail than >> it would be to install different shims on the stab and have to >> readjust the tension on 6 control cables.... >> >> Ryan >> >> >> On Wed, Jan 6, 2010 at 11:41 AM, Michael Perez >> <speedbrake@sbcglobal.net >> <http://us.mc833.mail.yahoo.com/mc/compose?to=speedbrake@sbcglobal.net >> >> >> >> wrote: >> >> Bill, my response was based on the previous email reply, not a >> direct question of why cables are needed for adjustment. I took >> Shad's email as meaning, use the cables only to move the leading >> edge. That may not have been his intent, so I asked. There was >> no mention of shimming. No mention was made about fine tuning >> either. I would not use the cables to adjust the leading edge of >> anything. The shim is the adjustment, the cables are the >> support. It sounded to me that, if the tail was not flying well, >> that the cables would be adjusted to twist the thing. I am not a >> fan of twist. I believe my email explained itself quite well. >> Shim as needed, adjust cables to proper tension/correct alignment. >> "...insert the clevis pin (assuming - probably incorrectly >> - >> that you're planning to use a traditional method of fastening >> the fork, with clevis pins). " >> I thought I would make some balsa wood pins to slip into >> the >> fork and hold it there with thread. >> As I stated, I have a handle on it now. >> >> >> --- On *Wed, 1/6/10, Bill Church /<billspiet@sympatico.ca >> < >> http://us.mc833.mail.yahoo.com/mc/compose?to=billspiet@sympatico.ca>>/* >> >> wrote: >> >> >> From: Bill Church <billspiet@sympatico.ca >> < >> http://us.mc833.mail.yahoo.com/mc/compose?to=billspiet@sympatico.ca>> >> >> Subject: Pietenpol-List: Re: Using half of the tail cables? >> (long winded) >> To: pietenpol-list@matronics.com >> < >> http://us.mc833.mail.yahoo.com/mc/compose?to=pietenpol-list@matronics.com >> > >> >> Date: Wednesday, January 6, 2010, 11:22 AM >> >> <billspiet@sympatico.ca >> < >> http://us.mc833.mail.yahoo.com/mc/compose?to=billspiet@sympatico.ca>> >> >> >> This is confusing. >> You ask why you would need the cables to adjust the leading >> edge, and then you say that you would just shim the >> horizontal stab at the leading edge and re-adjust the cable >> tension to suit. That sounds to me like you're going to need >> your cables to adjust the leading edge. >> Every time the shimming is adjusted, all of your cable >> tensions will need to be adjusted as well, since the cable >> attachment points are not the same as the stab pivot point. >> A simple and effective method used by many builders for fine >> tuning the tail incidence , is achieved by simply adjusting >> the bracing cables, which DOES put a slight twist into the >> horizontal stab - but it is minor (probably visually >> imperceptible unless you're looking for it) - it is only for >> fine tuning. >> >> So, the short answer to your original question: >> "Sound, worthy idea or a waste?" >> would be the latter, but I guess you've already come to that >> conclusion. >> >> There are alternate methods possible, but turnbuckles are >> likely the most practical solution. If you use a swaged stud >> with a threaded fork, it will look nice and clean, but >> you'll have a difficult time making adjustments, as you'll >> have to disconnect the fork from the bracket, turn in or out >> the adjustment, then pull the cable tight to re-With >> turnbuckles, the tension adjustments are done with all of >> the cables in place. >> >> >> Bill C. >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=280363#28036 >> - The Pietenpol-List Email Forum >> -http://www.matronics.com/Na======================= >> >> >> <http://forums.matronics.com/viewtopic.php?p=280363#280363> >> >> >> * >> >> " target="_blank"> >> http://www.matronics.com/Navigator?Pietenpol-List >> tp://forums.matronics.com >> _blank">http://www.matronics.com/contribution >> >> * >> >> >> * >> >> " rel=nofollow target=_blank> >> http://www.matronics.com/Navigator?Pietenpol-List >> et=_blank>http://forums.matronics.com >> llow target=_blank>http://www.matronics.com/contribution >> >> * >> >> * >> >> >> * >> > > -- > Dan Yocum > Fermilab 630.840.6509 > yocum@fnal.gov, http://fermigrid.fnal.gov > "I fly because it releases my mind from the tyranny of petty things." > >


    Message 26


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    Time: 04:08:20 PM PST US
    From: "wayne@taildraggersinc.com" <wayne@taildraggersinc.com>
    Subject: Re: Lee Bottom field....
    And if anyone hasn't been to Lee Bottom, and would like to see what's it's like there, I have some photos from Soup on Sunday that my wife and I attended back in 2006. http://www.taildraggersinc.com/pages/gallery/sinful_sunday.html Lee Bottom is just one more reason why I miss living in Louisville. Wayne Bressler Taildraggers, Inc. www.taildraggersinc.com


    Message 27


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    Time: 05:37:23 PM PST US
    From: "Lagowski Morrow" <jimdeb@charter.net>
    Subject: Re: Motorcycle Link for Clevis
    I used the links from a #520 chain--Jim lagowski ----- Original Message ----- From: "K5YAC" <hangar10@cox.net> Sent: Wednesday, January 06, 2010 1:32 PM Subject: Pietenpol-List: Motorcycle Link for Clevis > > I've noticed that several people have used chain master links in place of > clevises, which are obviously plenty strong for the task, but I can't > figure out what series or type of chain these links are from. I run a 520 > series chain on my enduro motorcycle, which I believe is one of the > largest of the motorcycle varieties but the links that I've seen used in > place of clevises are elongated, and most likely not used on a motorcycle > drive. > > Anyone know whey type of chain these links are from, or where I can find > some? > > -------- > Mark - working on wings > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=280389#280389 > > >


    Message 28


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    Time: 06:51:52 PM PST US
    From: Douwe Blumberg <douweblumberg@earthlink.net>
    Subject: airworthiness papers display
    Does the holder for paperwork, (airworthiness, reg, etc) need to be in the front cockpit or rear cockpit or does it matter? Douwe




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