Made some more progress on both elevators. They are not finished yet, but the basic structure is done on both sides. I need to add some reinforcements and blocks for the hinges, but I want to first build up the stab in the same manner, so I can add the reinforcements on all parts in one go. But the most important work on the elevators is done and they came out nice and straight:

Also, the trailing edges need to be sanded to a round shape. I want to build a sanding jig for that, to get a uniform shape:

I also made some progress on the muffler, but I will share that next time, as I need to do some polishing first :-).