Originally Posted by
Pilot DAR
I think that the FAA's perception of propeller blade shedding can be inferred from the design requirement:
.. It's worth noting that the instant that a blade might release from the hub, it stops developing thrust, so would be acted upon by centrifugal force primarily. ..
At the instant the blade is released from the hub there is no more centripetal force. It is now obeying Newton's first law w.r.t. the hub and will go in whatever direction it was already going. OTOH, it is subject to drag and lift from the shape of the blade and the airflow around it,so there are other forces acting on it that might cause it to accelerate in one direction or another.