Drilling F-634 Seat Belt Brackets July 27th, 2010
The seat belt anchors do not have pre-punched holes, so they have to be lined up with the holes in the F-705 bulkhead. Each anchor is made up of two F-634 brackets. To attach the anchors, I first drilled a hole in the left brackets as shown in the plans. I then made a spacer out of wood in the shape of the bracket to position the right brackets.
With one side bolted to the bulkhead, and the spacer in place, I put a bolt through the opening where the seat belt would normally attach to keep the two brackets aligned.
I used clamped the right bracket to the F-705 bar with a block of wood to give it some support, turned the whole thing over, and match-drilled the hole.
Then I simply repeated the process for the four anchors, and put all the little brackets away for a while!