Continued work on the rear canopy bow. In photo 1 I have drilled the front-facing pilot holes from the bow into the steel corner brackets. The pen in the photo was to hold the bow off the rear bulkhead while drilling.
In photo 2 I'm drilling the 2nd set of holes in the side of the bow. Note the holes are offset from the first pair, so the rivets clear one another.
And in photo 3 the rear bow is done.
Drilling pilot holes at corners
Drilling 2nd set of holes in the side of the corners