Well, it's been almost 3 weeks now. I took a bit of time off from the project, and only picked it back up a couple of days ago. First off, I built a mock-up of the flap system I plan to use. This is a slotted flap arrangement, using control horns for hinges.



This should work pretty well! It'll be nearly gapless, both top and bottom. All of the horns but one will be shortened, and the one that will remain long will be connected to the servo for actuation.