Today I deburred all the parts, then I assembled the left aileron to drill everything. On the picture you can see the spar, the leading edge and inside the leading edge the couterweight pipe. This pipe is fixed with pop rivets, I'll have to look how to use this particular type of rivets at this location.

32 stiffeners cut and drilled, they are now ready for deburring and dimpling. Some work also on the spar.

All the parts are accounted for, plan reading, and begin of stiffener work.

After some difficulties bucking a few rivets, both flaps are finished. The hinge pin is secured using a piece of hinge screwed to the spar. On the other flap the small part is screwed horizontally, this will allow to differentiate right and left pins.

Today I got a lot done: assembly of the two flaps, fabrication of the jig for the riveting, riveting of the skins and ribs. Normally I should have finished everything by riveting the skin to the spar, but I run into some problems with the upper skin: the shopheads weren't nicely formed. I decided to drill out all the bad rivets and to do the work on another session. So both flaps only await the spar to be riveted.



The flap hinge is clecoed on the spar. I decided to have the hinge pin inserted by the middle of the hinge. For this I removed one eye of the hinge and added a nutplate on the spar to allow for a hinge pin blocking system.