No Perry, I'm not referring to the AirBus mishap. I
happen to whole heartedly agree with Paul's assesment of
de-lamination/separation of the lay-ups, further
exacerbated by the elements (Moisture) seeping in. I
have personally witnessed this early on the infancy of
Composites, in my brother's Yacht Club.
As far as I'm concerned, the chances of this occurring
in our Prop Blade is zilch to none since it operates as
a HUGE centrifuge.

It's my ignorance of Composite construction
(Epoxies),that makes me very eerie of the bonding
strength of dissimilar materials joints, vs time.......
So Perry, make sure that you OVERKILL the Shank to Blade
Hub joint. I'll take the additional weight even if I
have to fly on an empty stomach to compensate for it ;-)

                                     Butch

Butch,
The only thing that Epoxy sticks better than to itself, is steel,
it loves it ! we have a saying here - you may have heard of it
"Sticks like S... to a blanket"
Paul is right, if done properly there is no problem.

George (down under)

 
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