Original Posted By: Stephen Gumper
I bought some turnbuckles from our friend JoeC (fishin)and he sent alongsomething that he wanted my opinion on. I would like others' opinions too.He sent a stamped stainless eye strap that is used on boats. He bent itover and has a terrific looking shackle. Boat US sells them for $4.29 a 5pack. Looks plenty strong and I can attest, as a sailboat owner in Florida,that the stainless will hold up quite well to the elements. Strength wouldbe the only question in my mind. Without being a structural engineer, Iwould say it is plenty strong.Just thought others might want to learn of Joe's creativity.Ted BrousseauNaples, FLFlying a GN-1Building a Pietenpol/________________________________________________________________________________
Pietenpol-List: Re: shackles
Pietenpol-List: Re: shackles
Original Posted By: Lawrence V Williams
writes:>I bought some turnbuckles from our friend JoeC (fishin)and he sent >along>something that he wanted my opinion on. I would like others' opinions >too.>>He sent a stamped stainless eye strap that is used on boats. He bent >it>over and has a terrific looking shackle. Boat US sells them for $4.29 >a 5>pack. Looks plenty strong and I can attest, as a sailboat owner in >Florida,>that the stainless will hold up quite well to the elements. Strength >would>be the only question in my mind. Without being a structural engineer, >I>would say it is plenty strong.>>Just thought others might want to learn of Joe's creativity.>>Ted Brousseau>Naples, FL>Flying a GN-1>Building a Pietenpol/>>TedGood to hear from you! I've been sweating you out since you departedB'head to FL via the "great circle route". Good to know that you made ithome OK.Larry________________________________________________________________________________
writes:>I bought some turnbuckles from our friend JoeC (fishin)and he sent >along>something that he wanted my opinion on. I would like others' opinions >too.>>He sent a stamped stainless eye strap that is used on boats. He bent >it>over and has a terrific looking shackle. Boat US sells them for $4.29 >a 5>pack. Looks plenty strong and I can attest, as a sailboat owner in >Florida,>that the stainless will hold up quite well to the elements. Strength >would>be the only question in my mind. Without being a structural engineer, >I>would say it is plenty strong.>>Just thought others might want to learn of Joe's creativity.>>Ted Brousseau>Naples, FL>Flying a GN-1>Building a Pietenpol/>>TedGood to hear from you! I've been sweating you out since you departedB'head to FL via the "great circle route". Good to know that you made ithome OK.Larry________________________________________________________________________________
Pietenpol-List: RE: shackles
Original Posted By: Doug
A photo would be worth a 1001 words...-------------------------------------------------------------------------I bought some turnbuckles from our friend JoeC (fishin)and he sent alongsomething that he wanted my opinion on. I would like others' opinions too.He sent a stamped stainless eye strap that is used on boats. He bent itover and has a terrific looking shackle. Boat US sells them for $4.29 a 5pack. Looks plenty strong and I can attest, as a sailboat owner in Florida,that the stainless will hold up quite well to the elements. Strength wouldbe the only question in my mind. Without being a structural engineer, Iwould say it is plenty strong.Just thought others might want to learn of Joe's creativity.Ted BrousseauNaples, FLFlying a GN-1Building a Pietenpol/________________________________________________________________________________
A photo would be worth a 1001 words...-------------------------------------------------------------------------I bought some turnbuckles from our friend JoeC (fishin)and he sent alongsomething that he wanted my opinion on. I would like others' opinions too.He sent a stamped stainless eye strap that is used on boats. He bent itover and has a terrific looking shackle. Boat US sells them for $4.29 a 5pack. Looks plenty strong and I can attest, as a sailboat owner in Florida,that the stainless will hold up quite well to the elements. Strength wouldbe the only question in my mind. Without being a structural engineer, Iwould say it is plenty strong.Just thought others might want to learn of Joe's creativity.Ted BrousseauNaples, FLFlying a GN-1Building a Pietenpol/________________________________________________________________________________
> RE: shackles
Original Posted By: Sylph
I have heard that stainless steel isn't as strong as regular carbon steel. Something about "it's easier to fatigue","developes cracks".Several years ago, while hanging around the local sport shop, a fellow brought in his brand new Ruger 44 Mag Super Redhawlk revolver.He'd fired the first shot all right, but on firing the second, something flashed down range, and the handgun got suddenly lighter.He had shot the barrel off. The secound round of 44 mag ammo, had caused the barrel to break off at the threads, where the barrel screws into the frame.He held the gun in two big pieces.Gun was stainless steel. I suspect that a carbon steel pistol wouldn't have done that.Still though, one in a million.Bob>From: "Davis, Marc" >Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: RE: shackles>Date: Mon, 11 Oct 1999 09:45:25 -0700>>>A photo would be worth a 1001 words...>------------------------------------------------------------------------->I bought some turnbuckles from our friend JoeC (fishin)and he sent along>something that he wanted my opinion on. I would like others' opinions too.>He sent a stamped stainless eye strap that is used on boats. He bent it>over and has a terrific looking shackle. Boat US sells them for $4.29 a 5>pack. Looks plenty strong and I can attest, as a sailboat owner in >Florida,>that the stainless will hold up quite well to the elements. Strength would>be the only question in my mind. Without being a structural engineer, I>would say it is plenty strong.>Just thought others might want to learn of Joe's creativity.>Ted Brousseau>Naples, FL>Flying a GN-1>Building a Pietenpol/>________________________________________________________________________________
I have heard that stainless steel isn't as strong as regular carbon steel. Something about "it's easier to fatigue","developes cracks".Several years ago, while hanging around the local sport shop, a fellow brought in his brand new Ruger 44 Mag Super Redhawlk revolver.He'd fired the first shot all right, but on firing the second, something flashed down range, and the handgun got suddenly lighter.He had shot the barrel off. The secound round of 44 mag ammo, had caused the barrel to break off at the threads, where the barrel screws into the frame.He held the gun in two big pieces.Gun was stainless steel. I suspect that a carbon steel pistol wouldn't have done that.Still though, one in a million.Bob>From: "Davis, Marc" >Reply-To: Pietenpol Discussion >To: Pietenpol Discussion >Subject: RE: shackles>Date: Mon, 11 Oct 1999 09:45:25 -0700>>>A photo would be worth a 1001 words...>------------------------------------------------------------------------->I bought some turnbuckles from our friend JoeC (fishin)and he sent along>something that he wanted my opinion on. I would like others' opinions too.>He sent a stamped stainless eye strap that is used on boats. He bent it>over and has a terrific looking shackle. Boat US sells them for $4.29 a 5>pack. Looks plenty strong and I can attest, as a sailboat owner in >Florida,>that the stainless will hold up quite well to the elements. Strength would>be the only question in my mind. Without being a structural engineer, I>would say it is plenty strong.>Just thought others might want to learn of Joe's creativity.>Ted Brousseau>Naples, FL>Flying a GN-1>Building a Pietenpol/>________________________________________________________________________________
Pietenpol-List: RE: shackles
Original Posted By: oil can
There is Stainless steel and then there is stainless steel! 316 is oneof the best. We use it in high stress situations in boats. Thesemetals have high levels of alloying metals to change their qualities.316, for instance has 16 to 18% chromimum to increase its resistance tocorrosion and 10 to 14% nickle for toughness and strength.The rub comes in fabrication. Anything that interferes with thestainless's ability to form a protective coating of corrosion on itsself can be problem. Stainless is very suseptable to cloride stresscorrosion. The smallest scratch or crack will allow corrosive agents toenter. If the part is under stress, vibrates or beds, the corrostionwill move deeper and deeper. The resulting crystalized corossion failureis often mistaken for a fatgue failure. Usually when the stainless partfails, the surface still looks shiny. It's insideous.If you are going to use stainless, Make your bends before you drill anyholes, to avoid stress localization at the edge of the hole. Ease alledges, round all corners (especially inside corners) and polish allsurfaces. These cautions are just as valid for 4130 chromemoly steeltoo, even though it's not as susceptable to deveoping cracks.Lauren mailsorter-102-2.iap.bryant.webtv.net (8.8.8-wtv-d/ms.dwm.v7+dul2)Date: Mon, 11 Oct 1999 19:45:19 -0700 (PDT)________________________________________________________________________________
There is Stainless steel and then there is stainless steel! 316 is oneof the best. We use it in high stress situations in boats. Thesemetals have high levels of alloying metals to change their qualities.316, for instance has 16 to 18% chromimum to increase its resistance tocorrosion and 10 to 14% nickle for toughness and strength.The rub comes in fabrication. Anything that interferes with thestainless's ability to form a protective coating of corrosion on itsself can be problem. Stainless is very suseptable to cloride stresscorrosion. The smallest scratch or crack will allow corrosive agents toenter. If the part is under stress, vibrates or beds, the corrostionwill move deeper and deeper. The resulting crystalized corossion failureis often mistaken for a fatgue failure. Usually when the stainless partfails, the surface still looks shiny. It's insideous.If you are going to use stainless, Make your bends before you drill anyholes, to avoid stress localization at the edge of the hole. Ease alledges, round all corners (especially inside corners) and polish allsurfaces. These cautions are just as valid for 4130 chromemoly steeltoo, even though it's not as susceptable to deveoping cracks.Lauren mailsorter-102-2.iap.bryant.webtv.net (8.8.8-wtv-d/ms.dwm.v7+dul2)Date: Mon, 11 Oct 1999 19:45:19 -0700 (PDT)________________________________________________________________________________
> RE: shackles
Original Posted By:> oil can
After machining any stainless, it should be passivated to protect it fromcorrosion!Lauren Williams wrote:> There is Stainless steel and then there is stainless steel! 316 is one> of the best. We use it in high stress situations in boats. These> metals have high levels of alloying metals to change their qualities.> 316, for instance has 16 to 18% chromimum to increase its resistance to> corrosion and 10 to 14% nickle for toughness and strength.>> The rub comes in fabrication. Anything that interferes with the> stainless's ability to form a protective coating of corrosion on its> self can be problem. Stainless is very suseptable to cloride stress> corrosion. The smallest scratch or crack will allow corrosive agents to> enter. If the part is under stress, vibrates or beds, the corrostion> will move deeper and deeper. The resulting crystalized corossion failure> is often mistaken for a fatgue failure. Usually when the stainless part> fails, the surface still looks shiny. It's insideous.>> If you are going to use stainless, Make your bends before you drill any> holes, to avoid stress localization at the edge of the hole. Ease all> edges, round all corners (especially inside corners) and polish all> surfaces. These cautions are just as valid for 4130 chromemoly steel> too, even though it's not as susceptable to deveoping cracks.>> Lauren>> ------------------------------------------------------------------------>> Subject: RE: shackles> Date: Mon, 11 Oct 1999 19:45:19 -0700 (PDT)
After machining any stainless, it should be passivated to protect it fromcorrosion!Lauren Williams wrote:> There is Stainless steel and then there is stainless steel! 316 is one> of the best. We use it in high stress situations in boats. These> metals have high levels of alloying metals to change their qualities.> 316, for instance has 16 to 18% chromimum to increase its resistance to> corrosion and 10 to 14% nickle for toughness and strength.>> The rub comes in fabrication. Anything that interferes with the> stainless's ability to form a protective coating of corrosion on its> self can be problem. Stainless is very suseptable to cloride stress> corrosion. The smallest scratch or crack will allow corrosive agents to> enter. If the part is under stress, vibrates or beds, the corrostion> will move deeper and deeper. The resulting crystalized corossion failure> is often mistaken for a fatgue failure. Usually when the stainless part> fails, the surface still looks shiny. It's insideous.>> If you are going to use stainless, Make your bends before you drill any> holes, to avoid stress localization at the edge of the hole. Ease all> edges, round all corners (especially inside corners) and polish all> surfaces. These cautions are just as valid for 4130 chromemoly steel> too, even though it's not as susceptable to deveoping cracks.>> Lauren>> ------------------------------------------------------------------------>> Subject: RE: shackles> Date: Mon, 11 Oct 1999 19:45:19 -0700 (PDT)
Pietenpol-List: shackles
Original Posted By: Doug413(at)aol.com
I have been following the messages about wire shackles and how you allhave been using #40 or #50 chain links. I assume you take two linksand two bolts and bolt the fitting on one end and the cable on theother. Or do you fold the link over and make it resemble the actualshackle? Would either method work?Why don't you simply not use the shackle? I understand that they'rethere so you can remove or replace the wire but how ofter does thathappen? The method my Kolb SlingShot uses is that the wire andthimble are attached directly to the fitting, no shackle at all.What's the downside to this method?Robert HainesMurphysboro, Illinois________________________________________________________________________________
I have been following the messages about wire shackles and how you allhave been using #40 or #50 chain links. I assume you take two linksand two bolts and bolt the fitting on one end and the cable on theother. Or do you fold the link over and make it resemble the actualshackle? Would either method work?Why don't you simply not use the shackle? I understand that they'rethere so you can remove or replace the wire but how ofter does thathappen? The method my Kolb SlingShot uses is that the wire andthimble are attached directly to the fitting, no shackle at all.What's the downside to this method?Robert HainesMurphysboro, Illinois________________________________________________________________________________
Re: Pietenpol-List: shackles
Original Posted By: "Gary Meadows"
Subject: Re: Pietenpol-List: shacklesIn a message dated 3/5/01 4:40:46 PM Pacific Standard Time, robertsjunk(at)hotmail.com writes:> I have been following the messages about wire shackles and how you all> have been using #40 or #50 chain links. I assume you take two links> and two bolts and bolt the fitting on one end and the cable on the> other. Or do you fold the link over and make it resemble the actual> shackle? Would either method work?> > Why don't you simply not use the shackle? I understand that they're> there so you can remove or replace the wire but how ofter does that> happen? The method my Kolb SlingShot uses is that the wire and> thimble are attached directly to the fitting, no shackle at all.> What's the downside to this method?> > Robert Haines> Murphysboro, Illinois> > > Robert,The only reason to consider using a shackle made of 2 links, 2 clevis bolts, 2 castle nuts is because aircraft shackles are kind of expensive so this represents a suitable substitute. Use where needed. I use these on my aircraft and they work well for me. I now have obtained a formed sheetmetal shackle from a 1923 -1927 Laird Swallow. The Kansas Av Museum has a punch press die for them which I can borrow. I received an estimate from a local fabricator who will run them for about $.40 each. The blankings then have to be formed. I may use some of these on my Scout. Doug Bryant ________________________________________________________________________________
Subject: Re: Pietenpol-List: shacklesIn a message dated 3/5/01 4:40:46 PM Pacific Standard Time, robertsjunk(at)hotmail.com writes:> I have been following the messages about wire shackles and how you all> have been using #40 or #50 chain links. I assume you take two links> and two bolts and bolt the fitting on one end and the cable on the> other. Or do you fold the link over and make it resemble the actual> shackle? Would either method work?> > Why don't you simply not use the shackle? I understand that they're> there so you can remove or replace the wire but how ofter does that> happen? The method my Kolb SlingShot uses is that the wire and> thimble are attached directly to the fitting, no shackle at all.> What's the downside to this method?> > Robert Haines> Murphysboro, Illinois> > > Robert,The only reason to consider using a shackle made of 2 links, 2 clevis bolts, 2 castle nuts is because aircraft shackles are kind of expensive so this represents a suitable substitute. Use where needed. I use these on my aircraft and they work well for me. I now have obtained a formed sheetmetal shackle from a 1923 -1927 Laird Swallow. The Kansas Av Museum has a punch press die for them which I can borrow. I received an estimate from a local fabricator who will run them for about $.40 each. The blankings then have to be formed. I may use some of these on my Scout. Doug Bryant ________________________________________________________________________________
Re: Pietenpol-List: Piet List: welding
Original Posted By: Mike Hardaway
Gang, This is two cents from an innocent bystander. It would seem like normalizing would be a perfectly safe and non-detrimental practice after TIG welding. Otherwise, it seems like all of us guys out here Oxy/acetylene welding (which I also understand is self-normalizing), would be having all these cracking problems. I haven't heard of any of this type of problem that much, Has anyone else? I have the feeling there is a large enough body of anecdotal evidence out here in Piet land that we would have heard about these normalization problems.They also taught us in A&P school to normalize welds like Chris mentioned.Gary Meadows________________________________________________________________________________Date: Mon, 05 Mar 2001 21:27:28 -0800
Gang, This is two cents from an innocent bystander. It would seem like normalizing would be a perfectly safe and non-detrimental practice after TIG welding. Otherwise, it seems like all of us guys out here Oxy/acetylene welding (which I also understand is self-normalizing), would be having all these cracking problems. I haven't heard of any of this type of problem that much, Has anyone else? I have the feeling there is a large enough body of anecdotal evidence out here in Piet land that we would have heard about these normalization problems.They also taught us in A&P school to normalize welds like Chris mentioned.Gary Meadows________________________________________________________________________________Date: Mon, 05 Mar 2001 21:27:28 -0800
> RE: shackles
Original Posted By: LaurenMWilliams(at)webtv.net (Lauren Williams)
>>>A photo would be worth a 1001 words...>------------------------------------------------------------------------->I bought some turnbuckles from our friend JoeC (fishin)and he sent along>something that he wanted my opinion on. I would like others' opinions too.>He sent a stamped stainless eye strap that is used on boats. He bent it>over and has a terrific looking shackle. Boat US sells them for $4.29 a 5>pack. Looks plenty strong and I can attest, as a sailboat owner in >Florida,>that the stainless will hold up quite well to the elements. Strength would>be the only question in my mind. Without being a structural engineer, I>would say it is plenty strong.>Just thought others might want to learn of Joe's creativity.>Ted Brousseau>Naples, FL>Flying a GN-1>Building a Pietenpol/>________________________________________________________________________________
>>>A photo would be worth a 1001 words...>------------------------------------------------------------------------->I bought some turnbuckles from our friend JoeC (fishin)and he sent along>something that he wanted my opinion on. I would like others' opinions too.>He sent a stamped stainless eye strap that is used on boats. He bent it>over and has a terrific looking shackle. Boat US sells them for $4.29 a 5>pack. Looks plenty strong and I can attest, as a sailboat owner in >Florida,>that the stainless will hold up quite well to the elements. Strength would>be the only question in my mind. Without being a structural engineer, I>would say it is plenty strong.>Just thought others might want to learn of Joe's creativity.>Ted Brousseau>Naples, FL>Flying a GN-1>Building a Pietenpol/>________________________________________________________________________________
> > RE: shackles
Original Posted By: DonanClara(at)aol.com
> >> >> >> >> >A photo would be worth a 1001 words...> >-------------------------------------------------------------------------> >I bought some turnbuckles from our friend JoeC (fishin)and he sent along> >something that he wanted my opinion on. I would like others' opinions too.> >He sent a stamped stainless eye strap that is used on boats. He bent it> >over and has a terrific looking shackle. Boat US sells them for $4.29 a 5> >pack. Looks plenty strong and I can attest, as a sailboat owner in> >Florida,> >that the stainless will hold up quite well to the elements. Strength would> >be the only question in my mind. Without being a structural engineer, I> >would say it is plenty strong.> >Just thought others might want to learn of Joe's creativity.> >Ted Brousseau> >Naples, FL> >Flying a GN-1> >Building a Pietenpol/> >>________________________________________________________________________________
> >> >> >> >> >A photo would be worth a 1001 words...> >-------------------------------------------------------------------------> >I bought some turnbuckles from our friend JoeC (fishin)and he sent along> >something that he wanted my opinion on. I would like others' opinions too.> >He sent a stamped stainless eye strap that is used on boats. He bent it> >over and has a terrific looking shackle. Boat US sells them for $4.29 a 5> >pack. Looks plenty strong and I can attest, as a sailboat owner in> >Florida,> >that the stainless will hold up quite well to the elements. Strength would> >be the only question in my mind. Without being a structural engineer, I> >would say it is plenty strong.> >Just thought others might want to learn of Joe's creativity.> >Ted Brousseau> >Naples, FL> >Flying a GN-1> >Building a Pietenpol/> >>________________________________________________________________________________