Glad to see you checked it out.

This was a test piece so that I can get the torque rod locations correct before drilling the bottom mold for the torque rods. The space inside the fuselage is extremely tight, and I've got to be sure of the location before the holes are drilled. This tail is destined for a Predator if it is still usable after installing the torque rods from the outside.

I've done some serious testing of materials, and what I plan to use is .2 ounce CF tissue on both sides of the elevator and aileron skins. because it is random orientation, when it is applied to both sides of a single piece of skin, it is extremely rigid, when the two sides are joined, it should be stiff as a board.

What do you guys use?

Yesterday was a long day, because I still had to sand, compound. and polish one half of the mold.