On Jan 30, 2:49*am, Stealth Pilot wrote:

the crush strength of the wood in the hub area is likely to be the
critical factor in selecting the wood species used for a propeller.

The state of the art in prop bolts for wood propellers:
http://www.cozybuilders.org/Oshkosh_...lle_Washer.pdf

The better the prop is sealed, the less the variance in humidity will
be, so it's important to seal and finish a wood prop.