Brief Description: Finished Flap Control-Cable System
Finished the flap cables out to the wings.
Installed the thimble eye in the end of the cable coming from the flap handle to the area behind the rear baggage bulkhead. This is where the triangular piece of 0.125" steel is that splits the control cable into two runs, one to each wing. This end attached with an AN115-21 shackle.
The -32S turnbuckle forks which are sized for 1/8" cable have holes drilled for AN4 bolts or pins, and the triangular piece had #10 holes at each corner (for AN3 bolts that fit the -21 shackle). I am assuming that Bob Barrows/AviPro would expect you to cut a 1/4" 4130 tube down to a very short bushing to go here to make up the difference, but it isn't specified anywhere in the instructions or the plans. Since there is this discrepancy, I am drilling out the holes for AN4 bolts to fit the turnbuckle fork. I bet Bob didn't even use turnbuckles to begin with, and just put -21 shackles here at the triangle and used the rod-end at the flap control rod to adjust the flaps. There is still plenty of material around the holes in the triangle, and there isn't a huge amount of tension here anyhow, so drilling this out is still probably good for 4 or 5 times the load this assembly will ever see.
Installed the pulleys and cable guide bushings and ran the cables up to each wing rear spar attach point. I added a foot or so of cable past the rear spar to have enough to install the thimble eye once I get the wings and have a good measurement. So this completes the flap controls for now.
Putting together the turnbuckle cable eye
Trangular Flap Cable Splitter
This end will be finished when the wing is installed
