This is my first completed (well, almost) project with FreeCAD. It is a small radio controlled airplane with mainly balsa and film construction. Wingspan is 32 inches, and I'm shooting for about 8.5 ounces total weight. I have designed it with a pusher prop so that the camera can go in the front for first-person-view flying. The airfoil was also custom designed. All the parts are now done, and all I have left is to design a jig for building the wing on a workbench and transform all the parts to 2D outlines for laser cutting.
For modeling, I used the Draft -> Part workflow exclusively. It is what I'm used to, and it works well for this kind of task where you start with an "outer mold line" solid aircraft and have to slice it into parts. Lots of intersections and booleans were involved. I am using FreeCAD 0.18 (the AppImage) on Slackware64 14.2. FreeCAD was great for this project. It is getting quite good!
Thanks for looking.