Stability testing: Something I could have done two months ago in two hours but for some reason didn't do it. So I finally decided to do them, and here are my results. I'll start with the aircraft (Abi) without the vertical stabilizers. I could probably just give you a video and let you decide for yourself, but there's no reason to waste that much time. There's only one conclusion It was a disaster. The wing extenders barely helped with yaw stability. I felt like i was in Tokyo drift trying to fly that plane around. Once the wind died down yaw stabilized a little, but was still off. It's obviously better than a pure plank flying wing, but obviously still very bad. After i slapped on some vertical stabilizer, it was perfect, stable, and everything I could ask for. Yaw was stable. Roll, pitch, all stable. Here's something else; I'm still in High school, so i'm not very "in-depth" of aeronautics. Some things i still do not know h...