I decided to try building some 1:18 planes, to go with the 21st century and BBI planes I have. I thought a MiG-21 would be an easy first try (it's just a tube and two deltas, right?). I figured that at 1:18 I would need to beef up a paper model. So, I have scaled up a GPM MiG-21 too, well, 1:18...