Hey Ryan,
About the propeller blades being "backwards": When the Hydromatic propeller is assembled, the blades are set to an index angle, the same angle as the pitch change mechanism in the dome, which contains the stationary and rotating cams and the piston. With a full feathering propeller, this is usually done in the feather position, that way all of the components are aligned properly when the piston travels fore and aft actuating the rotating cam, which is geared to the individual blades via the gear segments attached to the butt ends of the blades. It is easier to assemble the propeller in the full feather position, or the highest angle in a non-feathering propeller. It does not really matter, as long as the propeller and the pitch change mechanism are exactly set the same before you install the pitch change mechanism, in this case the dome. With the propeller in the feather or high angle position, it is easier to install it on the propeller shaft, gaining clearance for the propeller nut, the sockets and all of that.
We have posted technical information on the Hamilton Standard Hydromatic on our website, including color schematics:
http://dwp.bigplanet.com/bootstrapaircr ... ndex.nhtml
Craig