There are DP props like Troops that have solid hubs, just like a Bravo 3 propset. Then there are ones that have rubber hubs. But they sure look like pressed in rubber hubs to me, not replaceable like what you are thinking F14.
Any Volvo experts? I am not, I have only seen about 3 different Volvo propsets and am not certain of their vintage. B3s are so easy, they are all the same, all solid, no hub.
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