Finished up the fuselage rear bottom assembly by putting together the lower rudder hinge assembly. This is quite a stout section of the airplane and it connects the lower skin, both rear longerons, upper & lower hinge plates as well as a shim and a doubler. In all, there are six layers to be held together in the hinge and will be secured with 4 standard bolts and a 5th bolt that also serves as the aft tie-down ring.
After finishing this initial assembly, I updrilled the entire rear bottom assembly to its final rivet sizes.
Lower rudder hinge assembly - note the thickness.
The lower rudder hinge assembly as seen from underneath.