This is our third bird, after 2 big ones I wanted to try something smaller coz I just couldnt get the big ones set up right, and after some pain and sorrow we made this 430mm size (first ones were 720mm, and 660mm). I adjusted the pid in a tiny room with a 10 second hover, then we went out to the smallest backyard I have ever seen and it flew maiden like this. It seems this board favors smaller frames, it was so easy to fly, much more so than the big ones after 5 txpid session. The result is more than we hoped for. A bigger frame could be set up just as well Im sure altho Im sure it would require much more time and effort. Also we are noobs so take this with a grain of salt.
equipment:
4x sunnysky 2216 900kv-II motors with 10x3.8 cf dji props(Yea I had adapter made for them to fit the motors by a professional engineer.)
full cf frame, 6mm round tube inside 10mm square tube, 2mm(2x1mm cf sheet not wowen) on each side, with spongy rubber here and there. Emax simonk escs, 3ah 3s zippy, fs-t6, and ofc the CC3D.