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id on square ended propeller please or advice
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The ends have almost certainly been cut off (not an uncommon situation when prop tips are damaged) and it is virtually impossible to identify it without stamped drawing numbers or other identifying information stamped on the hub.
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You're welcome. By the way if you're interested, you might be able to correlate it with a engine possibility by going to this page then carefully measuring the hub dimensions and refering to the chart linked on that page. My general impression is that it's a WW1 era prop, although even matching the hub dimension doesn't provide positive proof, but it does tell you that it's NOT one of the other listed ones.
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What width do you mean? The wooden hub width can vary. You're measuring the dimensions of the metal hub, which is standard for the engine used. The critical measures are those on the "bolt hole circle", described in the link above. Those dimensions plus the bolt size provide a lot of information to at least exclude those engines that don't match.
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Hi,
Both systems did exist: one piece or stacked. In England, there was many 4-bladed props during WW1, and very few in France. In England, many of the 4-bladed were one piece construction, probably very difficult to make... and to transport! Post war, some people in France tried 4-bladed, many of them stacked. There was even French 4-bladed props which were not at right angle! Probably an interesting theory behind this...
ProbableFarmanJabiru.jpg
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