I made one of these the other day, but didn't like it, so I started over again. From AS3·063 aluminum sheet, make two 5-1001 Gap Fillers and two S-1002 Backing Plates to fit as shown. Once again, make sure there is a 1/16" to 1/8" clearance between the propeller blade and gap fillers. Drill four #30 rivet holes for securing the gap filler to the Spinner Back Plate Assembly, and two #30 rivet holes for securing the gap filler to the backing plate. Locate the holes approximately as shown. Cleco the backing plate to the gap filler, then cleco the gap filler to the Spinner Back Plate Assembly. Drill a #30 pilot hole in the S·601-1 Spinner and backing plate for the screw that will secure the two parts together.
I then primed and top coated these parts.
I also has some assistance from Phil Newlon. He assisted in helping me turn the prop to ensure that I had appropriate clearance with the filler plates.
