Original Posted By: AMsafetyC(at)aol.com
Well guys here is a status report on my project. Per Dan Helsper's request I attachedsome photos of my wing with the aileron attached. I have also includeda photo of drilling the aileron horn attachment. I used the hardwood block andtube method to insure the holes were aligned properly and perpendicular. Thisidea came from Chris Tracy on his web site. It worked well. This is the samemethod I used to drill all of the holes for the aileron hinge attachment screws.On the wings I still need to put in the nut plates for the aileron hinges, mountthe aileron pulley supports and then run the cable.The fuselage is pretty well done, including all of the controls and cables I havemounted the main instruments in the IP, but still need to do some more likethe engine gages, throttle, carb heat etc.. I am going to put the fuel tankin the front and that still needs to be made. The wing center section is complete.My empennage is complete and has been fitted to the fuselage with the guywires for a test fit. Next on the agenda is the tail wheel and the straightaxle main gear. I'd like to have my Piet done for the 80th in Oshkosh, but realistically that mightbe a stretch, depending on how much I get done this winter. I am also goingto use a corvair engine. I have the core, but I still need to rebuild it. AroundValparaiso (VPZ) we have 4 Piet's in various stages on construction. Allof them will be using Corvair power. The plan is to rebuild all of the enginesat the same time in the same location with the assistance of our local EAA techcounselor. The great thing is the tech counselor is rebuilding a Piet andalso doing a corvair conversion. He is also the person who did the restorationof the Allison engines for the Glacier Girl P-38 a few years ago.Rick Schreiberlmforge(at)earthlink.net________________________________________________________________________________
Pietenpol-List: aileron stuff
Re: Pietenpol-List: aileron stuff
Original Posted By: "Richard Schreiber"
Subject: Re: Pietenpol-List: aileron stuffRick,The wings look a bit different from when I saw them, really nice.John In a message dated 10/30/2008 2:54:22 P.M. Eastern Daylight Time, lmforge(at)earthlink.net writes:Well guys here is a status report on my project. Per Dan Helsper's request I attached some photos of my wing with the aileron attached. I have also included a photo of drilling the aileron horn attachment. I used the hardwoodblock and tube method to insure the holes were aligned properly and perpendicular. This idea came from Chris Tracy on his web site. It worked well.This is the same method I used to drill all of the holes for the aileron hinge attachment screws.On the wings I still need to put in the nut plates for the aileron hinges, mount the aileron pulley supports and then run the cable.The fuselage is pretty well done, including all of the controls and cables I have mounted the main instruments in the IP, but still need to do some morelike the engine gages, throttle, carb heat etc.. I am going to put the fuel tank in the front and that still needs to be made. The wing center section is complete. My empennage is complete and has been fitted to the fuselage withthe guy wires for a test fit. Next on the agenda is the tail wheel and the straight axle main gear. I'd like to have my Piet done for the 80th in Oshkosh, but realistically that might be a stretch, depending on how much I get done this winter. I am alsogoing to use a corvair engine. I have the core, but I still need to rebuild it. Around Valparaiso (VPZ) we have 4 Piet's in various stages on construction. All of them will be using Corvair power. The plan is to rebuild all of the engines at the same time in the same location with the assistance of our local EAA tech counselor. The great thing is the tech counselor is rebuildinga Piet and also doing a corvair conversion. He is also the person who did the restoration of the Allison engines for the Glacier Girl P-38 a few years ago.Rick Schreiber_lmforge(at)earthlink.net_ (mailto:lmforge(at)earthlink.net) **************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! ________________________________________________________________________________
Subject: Re: Pietenpol-List: aileron stuffRick,The wings look a bit different from when I saw them, really nice.John In a message dated 10/30/2008 2:54:22 P.M. Eastern Daylight Time, lmforge(at)earthlink.net writes:Well guys here is a status report on my project. Per Dan Helsper's request I attached some photos of my wing with the aileron attached. I have also included a photo of drilling the aileron horn attachment. I used the hardwoodblock and tube method to insure the holes were aligned properly and perpendicular. This idea came from Chris Tracy on his web site. It worked well.This is the same method I used to drill all of the holes for the aileron hinge attachment screws.On the wings I still need to put in the nut plates for the aileron hinges, mount the aileron pulley supports and then run the cable.The fuselage is pretty well done, including all of the controls and cables I have mounted the main instruments in the IP, but still need to do some morelike the engine gages, throttle, carb heat etc.. I am going to put the fuel tank in the front and that still needs to be made. The wing center section is complete. My empennage is complete and has been fitted to the fuselage withthe guy wires for a test fit. Next on the agenda is the tail wheel and the straight axle main gear. I'd like to have my Piet done for the 80th in Oshkosh, but realistically that might be a stretch, depending on how much I get done this winter. I am alsogoing to use a corvair engine. I have the core, but I still need to rebuild it. Around Valparaiso (VPZ) we have 4 Piet's in various stages on construction. All of them will be using Corvair power. The plan is to rebuild all of the engines at the same time in the same location with the assistance of our local EAA tech counselor. The great thing is the tech counselor is rebuildinga Piet and also doing a corvair conversion. He is also the person who did the restoration of the Allison engines for the Glacier Girl P-38 a few years ago.Rick Schreiber_lmforge(at)earthlink.net_ (mailto:lmforge(at)earthlink.net) **************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! ________________________________________________________________________________
Re: Pietenpol-List: aileron stuff
Original Posted By:
Thanks John. I'd like to work on my tank next but I'm trying to decide what to make it out of.I was going to go with aluminium.We have a local welder who does racing tanks.His prices were reasonable, but the last Piet tank he did was around $500just for labor! I would like to go with glass, but since I will also burn autofuel I am concerned about solvent resistance. When I get time I'll go throughall of the posts to the web site and make a decision, unless someone would liketo chime in now.Rick----- Original Message -----
Thanks John. I'd like to work on my tank next but I'm trying to decide what to make it out of.I was going to go with aluminium.We have a local welder who does racing tanks.His prices were reasonable, but the last Piet tank he did was around $500just for labor! I would like to go with glass, but since I will also burn autofuel I am concerned about solvent resistance. When I get time I'll go throughall of the posts to the web site and make a decision, unless someone would liketo chime in now.Rick----- Original Message -----
RE: Pietenpol-List: aileron stuff
Original Posted By: Jack T. Textor
Jack,I thought of doing that also. Make it out of terne plate, rivet, then solder. IfI remember correctly, that is what Bernard did on the early versions. HoweverI do recall some have had trouble with leaks from vibration after only a fewhours. Anyone with a terne plate or galvanized tank that they made care to comment?Rick Schreiber----- Original Message -----
Jack,I thought of doing that also. Make it out of terne plate, rivet, then solder. IfI remember correctly, that is what Bernard did on the early versions. HoweverI do recall some have had trouble with leaks from vibration after only a fewhours. Anyone with a terne plate or galvanized tank that they made care to comment?Rick Schreiber----- Original Message -----
RE: Pietenpol-List: aileron stuff
Original Posted By: gcardinal(at)comcast.net
RE: Pietenpol-List: Adequate rod ends
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Maybe if you could provide a sketch or image it might make things a bit moreclear, but I'm going to go ahead and make a couple of assumptions.I am assuming a set-up just like the one shown in Jack Phillips' photo, withthe exception that your rod end does not have the swivel connection.It sounds like you are basically asking how much load a 1/4-20 threaded rodcan carry in simple tension.A threaded rod is not as strong as a solid rod of the same diameter wouldbe, since there are threads cut (or rolled) into the rod, which leaves across-sectional area less than the solid rod. Experiments have been done todetermine the effective diameter of threaded fasteners - this is thediameter of a solid rod that would be approximately equal to the threadedrod. This effective diameter is used to calculate the effectivecross-sectional area of the threaded rod, and is referred to as the TensileStress Area, which is the number used to calculate the maximum load that canbe carried by a threaded fastener. A 1/4-20 thread has a Tensile Stress Areaof 0.0318 square inches, whereas a solid rod 1/4" in diameter would have anarea of 0.049 square inches. We will use 0.0318 for our calculations.Using the only data we have been supplied with (Tensile Strength - noindication whether this is Ultimate (breaking) or Yield (deforming)), we caneasily compute the maximum loading for each material.Maximum Load = Tensile Strength x Tensile Stress AreaFor the Steel rod:Max Load = 75,000 x 0.0318 = 2385 lb.For the Aluminum rod: Max Load = 45,000 x 0.0318 = 1431 lb.If we recall Jack's explanation of the loads carried by the lift struts ofthe Pietenpol in flight, we remember that we are looking for a load carryingcapacity of about 4000 lb. Based on these numbers we see that with theAluminum rod ends, your lift struts would likely fail at less than 2 G's ofloading (a sharp banked turn or a bit of turbulence). With the Steel rodends the lift struts will fail at about 3 G's.If I've interpreted your question correctly, I would say neither of the twoare a good choice. The 1/4-20 size is not big enough.If we do the calculation the normal way - (that is, we are given the loadingand the material strength, and from that we determine the fastener size) wesee the following:for the Steel rod:minimum Tensile Stress Area required = 4000 lb/75,000 psi = 0.053 sq infrom charts (or calculations using formulae) we see that 5/16-18 thread hasTensile Stress area of 0.0524 and 5/16-24 thread has a value of 0.058 .Either of these should do the job - move up one size to 5/16".for the Aluminum rod:minimum Tensile Stress Area required = 4000 lb/45,000 psi = 0.089 sq infrom charts we see that 3/8-24 thread has Tensile Stress area of 0.088(close enough) and 7/16-14 thread has a value of 0.093 while 7/16-20 threadhas a value of 0.119 .You will need to substantially increase the rod size to use aluminum rods.Of course, this may all be an oversimplification.As is often the case, the perceived weight savings by using aluminum becomesmuch smaller when the sizes need to be increased to account for the reducedstrength. I can't imagine there is a real significant weight savings to behad by using aluminum rather than steel in this application. Personally, Idon't care for aluminum fasteners (except maybe rivets). I would go for the5/16-24 size - which just happens to be the size that Jack said he used onhis struts.Hope I'm not way off track here.Bill C. _____
Maybe if you could provide a sketch or image it might make things a bit moreclear, but I'm going to go ahead and make a couple of assumptions.I am assuming a set-up just like the one shown in Jack Phillips' photo, withthe exception that your rod end does not have the swivel connection.It sounds like you are basically asking how much load a 1/4-20 threaded rodcan carry in simple tension.A threaded rod is not as strong as a solid rod of the same diameter wouldbe, since there are threads cut (or rolled) into the rod, which leaves across-sectional area less than the solid rod. Experiments have been done todetermine the effective diameter of threaded fasteners - this is thediameter of a solid rod that would be approximately equal to the threadedrod. This effective diameter is used to calculate the effectivecross-sectional area of the threaded rod, and is referred to as the TensileStress Area, which is the number used to calculate the maximum load that canbe carried by a threaded fastener. A 1/4-20 thread has a Tensile Stress Areaof 0.0318 square inches, whereas a solid rod 1/4" in diameter would have anarea of 0.049 square inches. We will use 0.0318 for our calculations.Using the only data we have been supplied with (Tensile Strength - noindication whether this is Ultimate (breaking) or Yield (deforming)), we caneasily compute the maximum loading for each material.Maximum Load = Tensile Strength x Tensile Stress AreaFor the Steel rod:Max Load = 75,000 x 0.0318 = 2385 lb.For the Aluminum rod: Max Load = 45,000 x 0.0318 = 1431 lb.If we recall Jack's explanation of the loads carried by the lift struts ofthe Pietenpol in flight, we remember that we are looking for a load carryingcapacity of about 4000 lb. Based on these numbers we see that with theAluminum rod ends, your lift struts would likely fail at less than 2 G's ofloading (a sharp banked turn or a bit of turbulence). With the Steel rodends the lift struts will fail at about 3 G's.If I've interpreted your question correctly, I would say neither of the twoare a good choice. The 1/4-20 size is not big enough.If we do the calculation the normal way - (that is, we are given the loadingand the material strength, and from that we determine the fastener size) wesee the following:for the Steel rod:minimum Tensile Stress Area required = 4000 lb/75,000 psi = 0.053 sq infrom charts (or calculations using formulae) we see that 5/16-18 thread hasTensile Stress area of 0.0524 and 5/16-24 thread has a value of 0.058 .Either of these should do the job - move up one size to 5/16".for the Aluminum rod:minimum Tensile Stress Area required = 4000 lb/45,000 psi = 0.089 sq infrom charts we see that 3/8-24 thread has Tensile Stress area of 0.088(close enough) and 7/16-14 thread has a value of 0.093 while 7/16-20 threadhas a value of 0.119 .You will need to substantially increase the rod size to use aluminum rods.Of course, this may all be an oversimplification.As is often the case, the perceived weight savings by using aluminum becomesmuch smaller when the sizes need to be increased to account for the reducedstrength. I can't imagine there is a real significant weight savings to behad by using aluminum rather than steel in this application. Personally, Idon't care for aluminum fasteners (except maybe rivets). I would go for the5/16-24 size - which just happens to be the size that Jack said he used onhis struts.Hope I'm not way off track here.Bill C. _____
Re: Pietenpol-List: aileron stuff
Original Posted By: Richard Schreiber
If you are going to do composite you can use vinyl-ester resin as that is resistant to ethanol now comon in auto fuelshttp://www.aircraftspruce.com/catalog/cmpages/vinylester.phpon the other hand if you make it out of aluminum you can cut all the pices yourself and just take them to someone to weld up, should save a bit on labor cost that way.Michael ----- Original Message -----
If you are going to do composite you can use vinyl-ester resin as that is resistant to ethanol now comon in auto fuelshttp://www.aircraftspruce.com/catalog/cmpages/vinylester.phpon the other hand if you make it out of aluminum you can cut all the pices yourself and just take them to someone to weld up, should save a bit on labor cost that way.Michael ----- Original Message -----
RE: Pietenpol-List: Adequate rod ends
Original Posted By: "walt"
RE: Pietenpol-List: Adequate rod ends
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Jeff,This is kind of a difficult question to answer. There are a lot of unknownshere:What is the diameter of the strut end?What material is the strut end made of?How long is the strut end in it's fully retracted position, and how long init's fully extended position?For the most part, when in flight, lift struts are loaded in tension. Theycan go into compression when experiencing turbulence, or a rough landing.And of course, they are loaded in compression when the plane is at rest, butthat loading is pretty minimal (just the static weight of the wings).If the rod end is loaded in simple tension, it doesn't really matter howmuch is unscrewed (as long as the threads are fully engaged). The onlycondition that I can think of where it would make a difference how much thethreaded portion is unscrewed would be if the rod end was subjected tobending loads (sideways). Then you get an increased bending moment - but I'mnot sure how that would occur, and if it did, how much loading it would be.Bill C.-----Original Message-----
Jeff,This is kind of a difficult question to answer. There are a lot of unknownshere:What is the diameter of the strut end?What material is the strut end made of?How long is the strut end in it's fully retracted position, and how long init's fully extended position?For the most part, when in flight, lift struts are loaded in tension. Theycan go into compression when experiencing turbulence, or a rough landing.And of course, they are loaded in compression when the plane is at rest, butthat loading is pretty minimal (just the static weight of the wings).If the rod end is loaded in simple tension, it doesn't really matter howmuch is unscrewed (as long as the threads are fully engaged). The onlycondition that I can think of where it would make a difference how much thethreaded portion is unscrewed would be if the rod end was subjected tobending loads (sideways). Then you get an increased bending moment - but I'mnot sure how that would occur, and if it did, how much loading it would be.Bill C.-----Original Message-----
RE: Pietenpol-List: aileron stuff
Original Posted By: "Jack T. Textor"
Re: Pietenpol-List: aileron stuff
Original Posted By: Richard Schreiber
Rick, My tank is a Cub tank built by a guy in Cheboygan, Mich. He charged me $140. He has the patterns to make more. If you want I'll ask him if he wants to make anymore.My tank is mounted behind the firewall and holds ~12.6 gallons.Jim Lagowski, in N.W. Mich ----- Original Message -----
Rick, My tank is a Cub tank built by a guy in Cheboygan, Mich. He charged me $140. He has the patterns to make more. If you want I'll ask him if he wants to make anymore.My tank is mounted behind the firewall and holds ~12.6 gallons.Jim Lagowski, in N.W. Mich ----- Original Message -----
Re: Pietenpol-List: aileron stuff
Original Posted By: Lagowski Morrow
Thanks Jim, that would be great! Do you have any dimensions and photos that youcould share? Walt and Greg I thought you were the ones that had problems withthe riveted and soldered tanks, which is why I did not want to go that route.When I checked if there was anyone locally that could weld up an aluminum thatI fabricated, I was given the name of the guy that wants $500. Rick Schreiber----- Original Message -----
Thanks Jim, that would be great! Do you have any dimensions and photos that youcould share? Walt and Greg I thought you were the ones that had problems withthe riveted and soldered tanks, which is why I did not want to go that route.When I checked if there was anyone locally that could weld up an aluminum thatI fabricated, I was given the name of the guy that wants $500. Rick Schreiber----- Original Message -----
RE: Pietenpol-List: aileron stuff
Original Posted By: "Phillips, Jack"
Subject: Pietenpol-List: Dual mags on Model AGene (Rambo),Yes I have an aftermarket head with 8 plug holes. I have one mag driven off the end of the crank, and the other off the camshaft. Photo attached. Dan HelsperPoplar Grove, IL.**************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! ________________________________________________________________________________Subject: RE: Pietenpol-List: aileron stuffDate: Mon, 3 Nov 2008 07:44:14 -0500
Subject: Pietenpol-List: Dual mags on Model AGene (Rambo),Yes I have an aftermarket head with 8 plug holes. I have one mag driven off the end of the crank, and the other off the camshaft. Photo attached. Dan HelsperPoplar Grove, IL.**************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! ________________________________________________________________________________Subject: RE: Pietenpol-List: aileron stuffDate: Mon, 3 Nov 2008 07:44:14 -0500
RE: Pietenpol-List: aileron stuff
Original Posted By: Phillips, Jack
Thanks for the complement Jack. The inspiration actually came from photos of yourplane and a couple of others. Rick SchreiberValparaiso, IN----- Original Message -----
Thanks for the complement Jack. The inspiration actually came from photos of yourplane and a couple of others. Rick SchreiberValparaiso, IN----- Original Message -----
> > Re: [!! SPAM] Re: Pietenpol-List: Re:
Original Posted By:> >> Jim Ash
> > > I'm set (with the exception of a Meco or Smith torch,> and maybe a nice set of two-stange regulators in a weak> moment) for oxy-acetylene, but I do agree with your comments> as to its versatility. One of the down sides of it for me is> that I don't have a garage (working on a shop building),> and I can't do it in the basement without (justifiable)> complaints from my wife about stinking the whole house up.> > For the record, I have no allegiance to either Red or Blue.> I've used both happily. Besides, I'm registered as> an independent.> > Some of my requirements for a TIG system are 1)HF - I want> a versatile tool. One that will do aluminum, stainless, and> maybe even the exotics if I ever had a call for it. Not> being able to do aluminum or stainless would be a> deal-breaker for me, even for a cheapie add-on system. I can> do aluminum and stainless with my torches now, but it's> a bit of a pain and requires more finess (and more flux). 2)> Foot-pedal control. Being able to adjust my heat on the fly> is a big deal for me with a TIG setup. If I have to stop a> good pass to fiddle with some knobs, I might as well not> bother at all. 3) Pre- and Post- flow control. I guess I> shouldn't be surprised the add-ons don't have a> solenoid valve, but I guess I was taking it for granted they> did.> > Jim Ash> > -----Original Message-----> >From: charles loomis > >Sent: Oct 30, 2008 12:23 AM> >To: pietenpol-list(at)matronics.com> >Subject: Re: [!! SPAM] Re: Pietenpol-List: Re:> Learning to weld @ Sport Air workshops> >> > >> >I wouldn't recommend them, they are lift start,> meaning you touch the tungston tip to the metal you are> welding and lift to start the weld, this is bad because it> contaminates the tungston and introduces perosity into the> weld. Also they don't have a built in gas solinoid for> the argon, you turn on the gas, weld, then turn off the gas,> very wateful of the gas, espically if you forget to turn it> off.> >> >I still suggest starting with an Oxy welding setup,> it's cheap and the most versitile tool in your shop. But> if you must have a TIG, try ebay, I got mine for $600> Australian, it is only DC so I cannot weld Aluminium, but it> is High frequency start with a gas solinoid and 140 amp 100%> duty, and 180 amp 80%. You should be able to get the same> rig in the states for $350 new. > >> >Charley> >> >> >--- On Thu, 10/30/08, Jim Ash> wrote:> >
> > > I'm set (with the exception of a Meco or Smith torch,> and maybe a nice set of two-stange regulators in a weak> moment) for oxy-acetylene, but I do agree with your comments> as to its versatility. One of the down sides of it for me is> that I don't have a garage (working on a shop building),> and I can't do it in the basement without (justifiable)> complaints from my wife about stinking the whole house up.> > For the record, I have no allegiance to either Red or Blue.> I've used both happily. Besides, I'm registered as> an independent.> > Some of my requirements for a TIG system are 1)HF - I want> a versatile tool. One that will do aluminum, stainless, and> maybe even the exotics if I ever had a call for it. Not> being able to do aluminum or stainless would be a> deal-breaker for me, even for a cheapie add-on system. I can> do aluminum and stainless with my torches now, but it's> a bit of a pain and requires more finess (and more flux). 2)> Foot-pedal control. Being able to adjust my heat on the fly> is a big deal for me with a TIG setup. If I have to stop a> good pass to fiddle with some knobs, I might as well not> bother at all. 3) Pre- and Post- flow control. I guess I> shouldn't be surprised the add-ons don't have a> solenoid valve, but I guess I was taking it for granted they> did.> > Jim Ash> > -----Original Message-----> >From: charles loomis > >Sent: Oct 30, 2008 12:23 AM> >To: pietenpol-list(at)matronics.com> >Subject: Re: [!! SPAM] Re: Pietenpol-List: Re:> Learning to weld @ Sport Air workshops> >> > >> >I wouldn't recommend them, they are lift start,> meaning you touch the tungston tip to the metal you are> welding and lift to start the weld, this is bad because it> contaminates the tungston and introduces perosity into the> weld. Also they don't have a built in gas solinoid for> the argon, you turn on the gas, weld, then turn off the gas,> very wateful of the gas, espically if you forget to turn it> off.> >> >I still suggest starting with an Oxy welding setup,> it's cheap and the most versitile tool in your shop. But> if you must have a TIG, try ebay, I got mine for $600> Australian, it is only DC so I cannot weld Aluminium, but it> is High frequency start with a gas solinoid and 140 amp 100%> duty, and 180 amp 80%. You should be able to get the same> rig in the states for $350 new. > >> >Charley> >> >> >--- On Thu, 10/30/08, Jim Ash> wrote:> >
RE: Pietenpol-List: aileron stuff
Original Posted By: "Jack T. Textor"
> >> > >> > >> While we're kinda on this, has anybody had any> >> experience with any of those kits that will> convert your> >> stick machine to a TIG machine? It sure takes some> of the> >> sting out of the price, and gives me a little more> >> versatility to be able to do either stick or TIG.> >> > >> Jim Ash> >> > >> -----Original Message-----> >> >From: Owen Davies > >> >Sent: Oct 29, 2008 2:52 PM> >> >To: pietenpol-list(at)matronics.com> >> >Subject: Re: [!! SPAM] Re: Pietenpol-List:> Re:> >> Learning to weld @ Sport Air workshops> >> >> Davies> >> > >> >> >> >Jim Ash wrote:> >> >> That said, the small Lincoln units are> enticing.> >> Maybe next April.> >> >Yup. Or the Miller or Thermal Arc equivalents.> They> >> both are supposed to > >> >be better than the Lincoln at low amperage;> the Thermal> >> Arc 185TSW in > >> >particular is supposed to be extremely good at> the low> >> end, where we > >> >would be working. Can't verify that from> >> experience, as I keep trying to > >> >gather the will to buy a TIG setup and never> quite get> >> there.> >> >> >> >When the time comes, go to> sci.engr.joining.welding and> >> ask Ernie > >> >Leimkuhler what's best for the purpose. A> better> >> model might come along > >> >by then, and he's likely to know.> >> >> >> >Owen> >> >> >> >> >> >> >> >> >> >> >> > >> > >> http://www.matronics.com/Navigator?Pietenpol-List> >> >> > > >> >> >> >> > > http://www.matronics.com/Navigator?Pietenpol-List ________________________________________________________________________________Subject: RE: Pietenpol-List: aileron stuffDate: Thu, 30 Oct 2008 15:24:20 -0500
> >> > >> > >> While we're kinda on this, has anybody had any> >> experience with any of those kits that will> convert your> >> stick machine to a TIG machine? It sure takes some> of the> >> sting out of the price, and gives me a little more> >> versatility to be able to do either stick or TIG.> >> > >> Jim Ash> >> > >> -----Original Message-----> >> >From: Owen Davies > >> >Sent: Oct 29, 2008 2:52 PM> >> >To: pietenpol-list(at)matronics.com> >> >Subject: Re: [!! SPAM] Re: Pietenpol-List:> Re:> >> Learning to weld @ Sport Air workshops> >> >> Davies> >> > >> >> >> >Jim Ash wrote:> >> >> That said, the small Lincoln units are> enticing.> >> Maybe next April.> >> >Yup. Or the Miller or Thermal Arc equivalents.> They> >> both are supposed to > >> >be better than the Lincoln at low amperage;> the Thermal> >> Arc 185TSW in > >> >particular is supposed to be extremely good at> the low> >> end, where we > >> >would be working. Can't verify that from> >> experience, as I keep trying to > >> >gather the will to buy a TIG setup and never> quite get> >> there.> >> >> >> >When the time comes, go to> sci.engr.joining.welding and> >> ask Ernie > >> >Leimkuhler what's best for the purpose. A> better> >> model might come along > >> >by then, and he's likely to know.> >> >> >> >Owen> >> >> >> >> >> >> >> >> >> >> >> > >> > >> http://www.matronics.com/Navigator?Pietenpol-List> >> >> > > >> >> >> >> > > http://www.matronics.com/Navigator?Pietenpol-List ________________________________________________________________________________Subject: RE: Pietenpol-List: aileron stuffDate: Thu, 30 Oct 2008 15:24:20 -0500