The F-712 is also a double bulkhead and again F-712A is the front and F-712B is the rear. They needed to be riveted together before the fuselage was assembled. The flush rivets were used with the flush side aft. The aft surface has to be smooth so the vertical stabilizer spar will fit. For the RV-7A, the aft tiedown was to be fitted later, in assembly with the vertical stabilizer.
Time: 6 hours
Leonard's RV-7A Build 