This week I sorted out where the alternator load meter Hall effect sensor will be mounted, and strung its wires from there to inside the cockpit. The wires are just hanging loose for now - I still need to secure the sensor and wires, and run them into the engine monitor connector.

I haven't made as much progress as I would have liked lately, as I've been trying to work on stuff I don't enjoy. So I decided to take a step back, and try a different task - the spinner. I had done the majority of the work on the spinner many months ago, but there were still several aspects that needed to be finished. I drilled all the holes for the platenuts that the spinner attachment screws go into, primed the forward bulkhead, and rivet all 20 platenuts in place.

Then I attacked the spacers that fill in the gap between the back of the propellor blade shanks and the spinner rear bulkhead. I had made 0.032 templates for those gaps before, but I had never made the final 0.062 pieces. It sure was a bear putting a curve in those 0.062 pieces :(. The plans show riveted on tabs that secure the forward ends of the spacer to the spinner. They didn't look that important, and a bit finicky to make, so I almost skipped them. But, I decided to calculate what the forces were on the ends of the spacers - I just about died when I calculated that they are subjected to an acceleration of over 1,200 g when the engine is turning at 2,700 rpm. That would probably be enough to force the ends of the spacer outwards, where it could be caught by the air. So, I made the tabs. I primed the surfaces of the tabs and spacers that will be riveted together, and tomorrow I'll rivet the tabs to the spacers, and drill the holes from the spinner into the tabs so I can fit the platenuts on the tabs.