Deburring of all parts of the aft fuselage, with the usual "unblueing" of the rivet lines.

Still drilling the aft fuse, but before I had to realign the small aft skin I had problems with a few days ago. This meant unclecoing and clecoing 50 or so clecos between each iteration before getting a satisfactory setting.

Today I worked in small sessions; first I needed almost two hours to square the aft fuselage. The pictures show the method I used.







Then I drilled the J-channels. First by drilling one hole out of five, putting in the cleco and then drilling the remaining holes. Here is a picture of the first step.



And the interior after the second step.

Today, with Sabine's help, we begun assembling the rear fuselage. This begins with the two aftermost bulkheads being clecoed to a small skin.
This skin needs to be formed to fit correctly the bulkheads. The second picture shows there is still a gap between the skin and the bulkhead. After one hour of work I got an acceptable fit.






Then the next bulkheads are assembled to the lower skin. Some six J-channel stiffeners have to be cut and their extremities trimmed to fit the bulkheads.



Then the side skins, the first bulkhead and the small back skin are assembled. The picture while seeming to show a big progress is somewhat misleading as we now have to get a better fit for the bulkheads, drill the stiffeners after making sure their is no twist, drill the skins and as usual, deburr, dimple, prime and rivet everything.