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Old 05-31-2015, 05:10 PM   #11
Bob Gardner
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Join Date: Jan 2006
Location: The North of England
Posts: 1,629


If you can, post a photograph of the prop, of both the entire prop and a close up of the hub top surface. If a flown example, the top and bottom surfaces will have marks left by the hub plates used to bolt the prop to the engine. And also, if flown for some length of time, the bolt holes will become slightly oval with wear in the thrust plane from the crank shaft.

With kind regards and met vriendelijke groet,

Bob Gardner
Author; WW1 British Propellers, WWI German Propellers
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