Drilling the Spinner and Fitting the Gap Fillers

I got the 14 holes drilled through the spinner and into the aft bulkhead uneventfully. The front bulkhead holes were located using small, round molybdenum magnets that center over each other. The lower magnet is taped in its underlying bulkhead hole and the top magnet slides around on the spinner on a plastic washer lubricated with a little oil. The magnets great attraction centers them over each other. The washer is taped in position and the center marked. Then the washer is removed, and drilled with a small #40 drill in case I was off a little. The final screw hole will be #19. In all cases I was nearly exactly over the underlying bulkhead hole. Once enlarged to #30 the holes were all perfectly centered. I also started fitting my home-made spinner gap covers. I'm so glad I took the trouble to make new ones. The fit is very good and I should end up with nice, tight joints where they butt up against the spinner.