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Old 01-19-2008 | 02:14 PM
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n.h.schmidt
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From: Davenport, IA
Default RE: prop adapter for graupner prop?
Hi Bob
Are you sure that the BJ has a 3mm threaded shaft? That seems a little too small. A 3mm to 4mm Threaded adapter isn't possible. Not enough meat to work with with the two sizes. I have tried.
It is possible to make a adapter to go from 3mm or 4mm up to 3/16" and use the many CF graupner and metal props with 3/16" hubs.
Could you tell us the prop numbers you ordered? Only some of the Graupner props are good for hi speed. n.h.schmidt
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