Today dad helped me rivet the bulkheads and battery angles, and then we deburred the j-channels and channels that will stiffen the skin in the aft fuselage.
We deburred all of the j-channel lengths, fairly easy with not too many complex shapes. Also started dimpling the j-channel, as seen in this picture below. In the background are more stiffeners and the bottom skin, which needs to be deburred and dimpled next.
