I'm baffled by this propeller that I was asked to identify. It's obviously of French origin, but it's stamped "Spa" and "Serie 3". Besides the fact that it looks like the stamping person had a seizure while he was doing it, the only reference I can find to a Serie 3 propeller is one manufactured by Eclair and designed for the Nieuport with an 80 hp LeRhone engine. The "Spa" on this one almost certainly refers to "SPAD", as it appears on other identifiable props that way, and would be more consistent with the Hispano Suiza engine stamping on this one as well (I can't discern the HP stamping, though).
I'm hoping PMDec or someone with similar talent can sort this one out for me.
EDIT:
I have since found a Gallia propeller lister as Serie 3 that is the correct length (8feet, or 2.45 cm) as this one, so that's probably the correct listing, but I can't find that it matches any SPAD application. It seems to be the correct length for a SPAD VII, and I suspect that the stamping is for a 150 HP Hisso engine, but I can't be sure.
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I'm hoping PMDec or someone with similar talent can sort this one out for me.
EDIT:
I have since found a Gallia propeller lister as Serie 3 that is the correct length (8feet, or 2.45 cm) as this one, so that's probably the correct listing, but I can't find that it matches any SPAD application. It seems to be the correct length for a SPAD VII, and I suspect that the stamping is for a 150 HP Hisso engine, but I can't be sure.
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