04-17-2013: 2 hrs
After searching the inventory, I finally located the C668 spacer material. I had to trim and fit individual spacer to the canopy deck, which went well. I deviated from the instruction a bit when drilling the holes. I first fit the roll bar and clamped it in place, then located the holes for the AN3 and AN4 bolts that will attach roll bar to fuselage. Luckily, I don't have to bend the roll bar, I just need to push a little to make it fit and leave 7/32" space between the roll bar and outboard edge of F721B canopy deck. Then I drilled the #40 pilot holes through the roll bar from top, instead of drilling from underneath using holes on F721B as a guide. This worked well for me.When drilling C667 aft spacer, I found it is almost impossible to hole the spacer by hand due to very limited access. Since I don't have the canopy deck F721B riveted yet, I lifted F721B, and taped the spacer under the longeron, then put the F721B back on. This worked well.
After that, I followed the instruction to drill all the holes to final size, and attached the roll bar. Putting the bolt in and tightening it will be challenging for the aft holes. I will see.
C667 spacers fabricated
Roll bar attaching holes are drilled to final size with fuselage and C667 spacers
Right side
Picture is pretty blurry, but you can see the spacer fit the canopy deck pretty well
