Aluminum tubing and music wire were inserted in the appropriate
places. The holes were drilled in a drill press using a wood fixture
to ensure centering and trueness. 3/32 brass tubing and 1/16 music
wire for the bearings and shafts. The kit did call for the shaft but not
the bearings but things run truer and smoother with the brass bearings.
All the prop blades are individual and there is no fixture for
alignment so that was all Mk 1 eyeball. I know I have the blade faces
correct and pitched for opposite rotation but I could have the rotation
backwards on both. Who will know?