Original Posted By: "Graham Hansen"
Hi Everyone Can someone tell me the most common way of connecting the two upper and two lower elevator cables to the bellcrank. The plans show each pair connected via a single shackle but I have not been able to find anaircraft shackle large enough to handle two cables with thimbles. I figure the best way would be to Nicropress an eye with a thimble in the center of one continuous cable and run each tail out to an elevator, that way I could use one of the small a/c shackles to connect the thimble to the bellcrank but I'm not sure if that would be acceptable.Or maybe someone knows of a source for larger a/c shackles?? Thanks Ed G.________________________________________________________________________________
Pietenpol-List: elevator cables connections
Re: Pietenpol-List: elevator cables connections
Original Posted By: "Carl Loar"
Ed,I made a special link fitting for this location by bending a 2" strip of .065" 4130 around a 1/4" dia. rod and edge welding it where the strip comes together. Two are required.Then a slot was cut out in the middle to go over the bellcrank and two 3/16" dia. holes were drilled for the two elevator cables to fas-ten to, using the fork ends of two turnbuckles. A 1/4" bolt links this fitting to the bellcrank. I also reinforced the bellcrank (streamlined tubing with flattened ends) using a couple of .049" x 3/4" 4130 straps at each end to provide more bearing surface for the 1/4" bolt. Top and bottom ends of the bellcrank are identical.Without a drawing, it is difficult to describe this thing and I hope you can figure it out. It has been entirely satisfactory on my Piet.In addition, I fashioned similar links for the elevator cable attach-ments to the elevator horns in lieu of shackles which were (and are) expensive. These were made from lighter 4130 strips (about .049"thick) approximately 1" wide. Four are required.These links provide a universal, self-aligning connection for the cables and are not difficult to make. Again, I hope you can visualise these parts from my description.Cheers,Graham ________________________________________________________________________________
Ed,I made a special link fitting for this location by bending a 2" strip of .065" 4130 around a 1/4" dia. rod and edge welding it where the strip comes together. Two are required.Then a slot was cut out in the middle to go over the bellcrank and two 3/16" dia. holes were drilled for the two elevator cables to fas-ten to, using the fork ends of two turnbuckles. A 1/4" bolt links this fitting to the bellcrank. I also reinforced the bellcrank (streamlined tubing with flattened ends) using a couple of .049" x 3/4" 4130 straps at each end to provide more bearing surface for the 1/4" bolt. Top and bottom ends of the bellcrank are identical.Without a drawing, it is difficult to describe this thing and I hope you can figure it out. It has been entirely satisfactory on my Piet.In addition, I fashioned similar links for the elevator cable attach-ments to the elevator horns in lieu of shackles which were (and are) expensive. These were made from lighter 4130 strips (about .049"thick) approximately 1" wide. Four are required.These links provide a universal, self-aligning connection for the cables and are not difficult to make. Again, I hope you can visualise these parts from my description.Cheers,Graham ________________________________________________________________________________
Re: Pietenpol-List: elevator cables connections
Original Posted By: del magsam
Subject: Re: Pietenpol-List: elevator cables connectionsThanks Graham This sounds like something I dreamed up but didn't put in my note tothe list.I had thought about simply bolting a strap type fitting to each side ofthe belcrank with a pivot bolt and then pinning the turnbuckles to them.But I wanted to get some other peoples ideas before I just went aheadand did it since I'm relatively new at this home building stuff.thanksfor the input. I also like your strap idea at the elevator end since those littleshackles are almost five bucks each and they're everywhere. Ed Grentzer________________________________________________________________________________Date: Tue, 27 Feb 2001 15:13:28 -0800 (PST)
Subject: Re: Pietenpol-List: elevator cables connectionsThanks Graham This sounds like something I dreamed up but didn't put in my note tothe list.I had thought about simply bolting a strap type fitting to each side ofthe belcrank with a pivot bolt and then pinning the turnbuckles to them.But I wanted to get some other peoples ideas before I just went aheadand did it since I'm relatively new at this home building stuff.thanksfor the input. I also like your strap idea at the elevator end since those littleshackles are almost five bucks each and they're everywhere. Ed Grentzer________________________________________________________________________________Date: Tue, 27 Feb 2001 15:13:28 -0800 (PST)
Re: Pietenpol-List: elevator cables connections
Original Posted By: "ED GRENTZER"
I did exactly what you described. One cable thru a thimble and back out.Dick N.----- Original Message -----
I did exactly what you described. One cable thru a thimble and back out.Dick N.----- Original Message -----