I continued on getting the three doublers located and drilled on the fuselage. The transponder antenna was drilled last session.
I made a final adjustment to the location of the doublers for the Comm antennas. The center hole for the BNC connector on the doubler is 10 inches behind the spar center section and perpendicular to the fuselage longitudinal axis. I match drilled the 27 holes in each doubler into the fuselage skin.
I removed the doublers and countersunk all the rivet holes and and deburred the holes in the doublers and the fuselage skin. The fuselage skin is ready for dimpling with the pull dimple dies.