Original Posted By: brian.e.jardine@l-3com.com
I have a question for the forum. Anyone who wants to please chime in. I have 14 clevises (is that the correct plural?) to use at various places in the control system. Problem: some of the clevises will have a turnbuckle fork attach to it. The Clevis is 0.185 inch thick and the turnbuckle fork slot is only 0.156 inch. Would it be OK with the inspector if I ground down the clevis until the fork would go over it? According to my handy dandy calculator I would have to grind off about 0.03 inch for the fork to go on the clevis. Comments? Chuck________________________________________________________________________________
Pietenpol-List: Clevis
Re: Pietenpol-List: Clevis
Original Posted By: Charles Campbell
Chuck,You shouldn't have to do any grinding of terminals to make them fit. It sounds like you may be mismatching hardware.Here are a couple of pdf's of cable terminal fittings that may help you sort out what you need.http://www.gen-aircraft-hardware.com/im ... gs.pdfGreg Cardinal ----- Original Message -----
Chuck,You shouldn't have to do any grinding of terminals to make them fit. It sounds like you may be mismatching hardware.Here are a couple of pdf's of cable terminal fittings that may help you sort out what you need.http://www.gen-aircraft-hardware.com/im ... gs.pdfGreg Cardinal ----- Original Message -----
Re: Pietenpol-List: Clevis
Original Posted By: Greg Cardinal
Greg, I guess my original problem is that I didn't know that the data like that you sent is even available. I ordered cable shackles from ACS and all they listed was the AN# for 3/32 cable, use AN# thimble, and AN# Clevis pin -- no other dimensions. Same for turnbuckle forks. Until I spent my money and received the parts did I know that the two would not fit together. Oh well, I guess if I don't get any other posts, I'll just make do. ----- Original Message -----
Greg, I guess my original problem is that I didn't know that the data like that you sent is even available. I ordered cable shackles from ACS and all they listed was the AN# for 3/32 cable, use AN# thimble, and AN# Clevis pin -- no other dimensions. Same for turnbuckle forks. Until I spent my money and received the parts did I know that the two would not fit together. Oh well, I guess if I don't get any other posts, I'll just make do. ----- Original Message -----
Pietenpol-List: Clevis
Original Posted By: Michael Perez
Re: Pietenpol-List: Clevis
Original Posted By: mark lee
Subject: Re: Pietenpol-List: Clevis
Subject: Re: Pietenpol-List: Clevis
Re: Pietenpol-List: Clevis
Original Posted By: Ryan Mueller
CharlesWhat exactly are you trying to do? Which part of the controls are you trying tohook up? How about a diagram of what youre trying to accomplish? Please dontjust make do. Something you are trying to do just doesnt sound correct. To me it sounds like your trying to connect two forked ends together which youshouldnt do. Fork ends (turnbuckle end or shackle) should go over a solid tab.If youre trying to attach a cable to a turnbuckle, use turnbuckle end fittingsfor connecting a cable directly to the turnbuckle. If you must connect two forkends together, make a short connector out of metal with holes in both ends.Chris--------ChrisSacramento, CAWestCoastPiet.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 27 Jun 2011 14:36:40 -0500Subject: Re: Pietenpol-List: Clevis
CharlesWhat exactly are you trying to do? Which part of the controls are you trying tohook up? How about a diagram of what youre trying to accomplish? Please dontjust make do. Something you are trying to do just doesnt sound correct. To me it sounds like your trying to connect two forked ends together which youshouldnt do. Fork ends (turnbuckle end or shackle) should go over a solid tab.If youre trying to attach a cable to a turnbuckle, use turnbuckle end fittingsfor connecting a cable directly to the turnbuckle. If you must connect two forkends together, make a short connector out of metal with holes in both ends.Chris--------ChrisSacramento, CAWestCoastPiet.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Mon, 27 Jun 2011 14:36:40 -0500Subject: Re: Pietenpol-List: Clevis
Re: Pietenpol-List: Re: Clevis
Original Posted By: "Catdesigns"
Chris,My scanner is acting up so I can't send you a drawing of what I'm trying to do. If you have a set of Aircamper plans look on the one showing the cockpit controls. There is a clevis at each side of the rear control stick with a cable attached to each -- that one I can do. Now look at the elevator control bellcrank. There are four clevises attached to the bellcrank. The drawing shows the cables connecting directly to the clevises but there must be a turnbuckle in each cable. The fork end of the turnbuckle would have to attach to the clevis, top and bottom. On my turnbuckle fork the space between the 'tines' is only 0.150 inch. The diameter of the clevis is 0.185 inch. Thus, I would have to grind down the .185 dimension to less than 0.15 inch for the two to work together. Capish? Hope I am clearer than mud! Chuck----- Original Message -----
Chris,My scanner is acting up so I can't send you a drawing of what I'm trying to do. If you have a set of Aircamper plans look on the one showing the cockpit controls. There is a clevis at each side of the rear control stick with a cable attached to each -- that one I can do. Now look at the elevator control bellcrank. There are four clevises attached to the bellcrank. The drawing shows the cables connecting directly to the clevises but there must be a turnbuckle in each cable. The fork end of the turnbuckle would have to attach to the clevis, top and bottom. On my turnbuckle fork the space between the 'tines' is only 0.150 inch. The diameter of the clevis is 0.185 inch. Thus, I would have to grind down the .185 dimension to less than 0.15 inch for the two to work together. Capish? Hope I am clearer than mud! Chuck----- Original Message -----
Re: Pietenpol-List: Clevis
Original Posted By: Ryan Mueller
The link sent me to 43.13 1B in which I could not find anything about clevises and turnbuckles. ----- Original Message -----
The link sent me to 43.13 1B in which I could not find anything about clevises and turnbuckles. ----- Original Message -----
Pietenpol-List: Re: Clevis
Original Posted By: "Charles Campbell"
Chuck - You can put extension tabs on the elevator bellcrank holes. Bend themout slightly and everything will clear just fine.Kevin--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Chuck - You can put extension tabs on the elevator bellcrank holes. Bend themout slightly and everything will clear just fine.Kevin--------Kevin "Axel" PurteeNX899KPAustin/Georgetown, TXRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
RE: Pietenpol-List: Re: Clevis
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Chuck,Here's a photo showing how I handled this area (for purposes of thisdiscussion, ignore the spring driven trim system):If you look closely you can see that where the turnbuckles attach I made apair of joggled straps of .062=94 4130 which fit into the fork end of theturnbuckles and fit around the bellcrank. You=92re right, the plans don=92tmention this, but it has to be done somehow. This is one way to do it.Jack PhillipsNX899JP =93Icarus Plummet=94Smith Mountain Lake, Virginia-----Original Message-----
Chuck,Here's a photo showing how I handled this area (for purposes of thisdiscussion, ignore the spring driven trim system):If you look closely you can see that where the turnbuckles attach I made apair of joggled straps of .062=94 4130 which fit into the fork end of theturnbuckles and fit around the bellcrank. You=92re right, the plans don=92tmention this, but it has to be done somehow. This is one way to do it.Jack PhillipsNX899JP =93Icarus Plummet=94Smith Mountain Lake, Virginia-----Original Message-----
Re: Pietenpol-List: Clevis
Original Posted By: Ryan Mueller
By 'making do' I meant that I won't use the clevises that I have -- I'll make up something else. ----- Original Message -----
By 'making do' I meant that I won't use the clevises that I have -- I'll make up something else. ----- Original Message -----
Pietenpol-List: Re: Clevis
Original Posted By: Jim Boyer
Re: Pietenpol-List: Re: Clevis
Original Posted By: Jack Phillips
Jack, I notice you do not have turnbuckles on the 'elevator' side of the bellcrank. Are your turnbuckles back at the elevator horns? ----- Original Message -----
Jack, I notice you do not have turnbuckles on the 'elevator' side of the bellcrank. Are your turnbuckles back at the elevator horns? ----- Original Message -----
RE: Pietenpol-List: Re: Clevis
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Yes. Easier to adjust them there.Jack PhillipsNX899JP =93Icarus Plummet=94Smith Mountain Lake, Virginia _____
Yes. Easier to adjust them there.Jack PhillipsNX899JP =93Icarus Plummet=94Smith Mountain Lake, Virginia _____
Pietenpol-List: Re: Stab Leading Edge
Original Posted By: "echobravo4"
Just to throw a monkey wrench in it here's mysolution at the bellcrank. :-)ClifNow look at the> elevator control bellcrank. There are four clevises attached to the > bellcrank. The drawing shows the cables connecting directly to the > clevises but there must be a turnbuckle in each cable. The fork end of > the turnbuckle would have to attach to the clevis, top and bottom. > Hope > I am clearer than mud! Chuck________________________________________________________________________________Subject: Pietenpol-List: Re: Stab Leading Edge
Just to throw a monkey wrench in it here's mysolution at the bellcrank. :-)ClifNow look at the> elevator control bellcrank. There are four clevises attached to the > bellcrank. The drawing shows the cables connecting directly to the > clevises but there must be a turnbuckle in each cable. The fork end of > the turnbuckle would have to attach to the clevis, top and bottom. > Hope > I am clearer than mud! Chuck________________________________________________________________________________Subject: Pietenpol-List: Re: Stab Leading Edge
> Re: Pietenpol-List: Clevis
Original Posted By:>
> > > > > > > > Greg, I guess my original> problem is that I didn't > know that thedata like that you sent is even> available. I ordered > cable shackles from ACS and all they listed was the AN# for> 3/32 cable, use AN# > thimble, and AN# Clevis pin -- no other dimensions.> Same for turnbuckle > forks. Until I spent my money and received the parts> did I know that the > two would not fit together. Oh well, I guess if I> don't get any other > posts, I'll just make do.> > ----- Original Message> -----
> > > > > > > > Greg, I guess my original> problem is that I didn't > know that thedata like that you sent is even> available. I ordered > cable shackles from ACS and all they listed was the AN# for> 3/32 cable, use AN# > thimble, and AN# Clevis pin -- no other dimensions.> Same for turnbuckle > forks. Until I spent my money and received the parts> did I know that the > two would not fit together. Oh well, I guess if I> don't get any other > posts, I'll just make do.> > ----- Original Message> -----
> > Re: Pietenpol-List: Clevis
Original Posted By:> >
> >> >> >> >> >> >> >> > Greg, I guess my original> > problem is that I didn't> > know that the data like that you sent is even> > available. I ordered> > cable shackles from ACS and all they listed was the AN# for> > 3/32 cable, use AN#> > thimble, and AN# Clevis pin -- no other dimensions.> > Same for turnbuckle> > forks. Until I spent my money and received the parts> > did I know that the> > two would not fit together. Oh well, I guess if I> > don't get any other> > posts, I'll just make do.> >> > ----- Original Message> > -----
> >> >> >> >> >> >> >> > Greg, I guess my original> > problem is that I didn't> > know that the data like that you sent is even> > available. I ordered> > cable shackles from ACS and all they listed was the AN# for> > 3/32 cable, use AN#> > thimble, and AN# Clevis pin -- no other dimensions.> > Same for turnbuckle> > forks. Until I spent my money and received the parts> > did I know that the> > two would not fit together. Oh well, I guess if I> > don't get any other> > posts, I'll just make do.> >> > ----- Original Message> > -----