Center controls

The center controls require a center phenolic block support for the flap drive tube. For a week I was trying to read the plans off my notebook computer screen. I emailed Sonex to ask them if they sold the extra plans pages for the center controls and lowered seat options, and they mailed them to me at no cost. I love those guys. When I first tried fitting the flap drive tube with the two original pre-drilled phenolic blocks the alignment of the bolt holes was slightly off. If I laid the drive tube into the bottoms of the left or right blocks with mounting bolts in the holes in the mounts, the opposite end of the tube was a half inch fore or aft of laying flat into the bottom of the block on that end. I re-made the two outside blocks and the middle block by boring the large hole for the drive tube and only one mounting bolt hole. Then I was able to fit and clamp everything into position and mark the second mounting bolt hole by drilling up from below. After the drive tube was installed and the flap handle in place, I could fit the flap and brake detent assembly onto the top of the spar tunnel. The 3rd shot is of starting to make the brake cable pulley link- a fun little piece.

Here are some more shots of the installation. In the middle shot you can see the rough-cut bracket for the brake cables sitting in place. It gets drilled and tapped for the 5/16-24 threaded ends of the brake cables. The flap drive cannot be installed until after the wings have been rigged- they would interfere with drilling the wing bolts.

 

Parts I've found not included with my Wick's order, it may have been updated since I made my hardware order in April 07. The hardware for the center controls I didn't expect to be included, but there are some other bits and pieces Wick's can't supply.

 

sonex parts- center controls,misc
quant. part # descrip
brake handle cable clevis mount bolt
1 an23-13 clevis bolt
1 an310-3 castle nut
1 ms24665-132 cotter pin
brake handle clevis pulley mount
1 1"OD X 3/16 ID X 3/16 thick pulley
1 an23-13 clevis bolt
1 an310-3 castle nut
1 ms24665-132 cotter pin
brake handle pivot 
1 an23-13 clevis bolt
1 an310-3 castle nut
1 ms24665-132 cotter pin
flap handle installation
1 snx-c06-15 spring 5/8ODX5/8LENGTHx.067" WIRE DIAM. GARDNER SPRING 36108G
1 1/4 ID X 3/8 OD steel bushing stock
1 an4-12 bolt
1 an960-416 washer
1 an970-4 washer
1 an310-4 castle nut
1 ms24665-134 cotter pin
1 an4-7 bolt
2 an960-416 washer
1 an960-416L washer
1 an310-4 castle nut
1 ms24665-134 cotter pin
nose gear pushrod
1  Aurora MW-3M-16 rod end (heim joint)
brake installation
1 1/2 X 1/2  X  2" alum. block pulley mount