I thought I was done with Aeromatic propellers about 40 years ago. Now I have half a dozen of them. Some are on flying airplanes.....
Realize that production propellers came in #1,#2,#3 flange as well as #20 shaft sizes. The pre-war Franklin had it's own, unique flange that incorporated the "snout." These crankshafts were obsolete by the time Aeromatic was in production, after the war and I do not know of any Aeromatics produced for the prewar engines.
The snout does nothing more than center and stabilize a wood prop. Continental and Lycoming do without. You could have Kent Tarver provide the early bolt pattern on one of his unfinished hubs...after you cut the snout off. Or you could do what I did on my 6AC-298-F3, essentially a 6 cylinder version of the 90 hp, 4AC-199 series.....make an adaptor disc that bolts to the Franklin flange and is bored in the front to mount the Aeromatic. This combo has been flying my Bellanca T14-14 for quite a few years. It was never a certified aircraft, so it operates 'experimental/exhibition." Certification on the Cadet would be a big question mark.
Dan
