I have been following the swappable series for several months now and have built a nutball, delta, old fogey, baby blender II, FT 3D alread built. I have always wanted to fly a "bank and yank" and the delta sealed the deal for me. I read the plans on FT for the F-22 Raptor but I wanted it to be a swappable. I have succeeded and here are pics of the plane after adding the KF step airfoil.
The first edition flew very well without the airfoil, however, it required a lot of elevator to maintain level flight. I figured the air foil would help this. Note: the Raptor with the swappable pod mounted is very nose heavy, I positioned the battery as far back on the power pod as possible and it made the rig managable.
Before you ask, the foam board was Dollar Tree and I bought it in black. The cut out was half of the airplane on one sheet of foam board, then joined on the center line. The spar is 3/16th hardwood dowel. Two 9 gram servos sealed the deal operating the twin elevons. It flies really good and I am not a good flyer. Comments and advice are appreciated.
Good luck building swappables, they really make flying and building fun.
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