I am trying to verify the installation of my propeller. The Hartzell documentation shows two examples - R flange and F flange. Trying to correlate that to the prop itself and the flywheel there are some differences. On my flywheel there are two NON-protruding sockets - leading me to believe this is a R flange. But on my prop there is only 1 hole that is not countersunk.
So other the obvious alignment of having the non-countersunk hole line up with one of the non-protruding sockets, is there any other orientation to take into account? Does it matter which non-protruding socket to use?