I'm building the simple one in the background first. The one in the front I call the "Yawcopter" It's three tail assemblies. I imagine hooking them all up to the rudder control would give it quite the turning radius, kinda like a blender. But what I want to know is can the two at the front tilt forward as you up the throttle? Could they tilt back when you want to stop? I guess I could just have them hooked to a switch or something... I don't know. What do you think is the best way to drive this thing? Is there some configuration of channel mixing or a board that can handle this? Hello by the way, I'm Peter... I build stuff. This will be 3D printed. I designed a heavy sturdy trainer version (pictured) and a trimmed down light speed/endurance version (not pictured). I used Sketchup pro (Don't tell my wife I bought it!). Any thoughts? I have a KK-mini coming to me in the mail to run this. 300mm from motor to motor.