Hey guys,
I just build one of these twister arfs and I have to say that I am not so happy with it. The build actually went very well for me. I installed a OS 50sx and it balanced right were the manual said it was supposed to. Then the next day I took it out to fly it. As soon as it lifted off, it wanted to nose right into the ground. I had to pull hard on the stick to keep it up. It finally flew straight with lots of up trim on the elev. I landed and moved the CG back about 1.5 inches and then flew again. The plane still wanted to nose in, but not so bad. I still had to use some up trim on the elev. to get it to fly straight. I moved the battery as far back as I could and it still wants to nose in. If I use trim on the elev, then the plane will not fly straight inverted. I don't know what to do. As far as I could tell, the incidence is off on the horizontal stab. I really don't want to rip the stabilizer apart and try to fix the incidence, any suggestions?