Can someone tell me what the hub thickness is on a top flight 16-8 wood prop
I have a 16-8 plastic master airscrew and the hub is to thick. I can not get the spinner on my os-120

If you don't get an answer elsewhere, try here:
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Most spinners have to be fitted to the prop.

Is the prop washer too far foward preventing the spinner for going down to the back plate?

Or is the spinner catching on the prop?

Enjoy,

Jim

or is the screw too long to tighten the spinner? if the prop blades are too big for the slots enlarge the slots if the screw is too long cut it i've had to do both. i hate wooden props they seem to loosen up due to expansion caused by humidity. i'll open the slots for an apc prop. by the way did you know that spinners come in slot sizes? there's a 3inch with small medium and large props