RE: F3D? Why don't we have it in the U.S.?
i dabble in F3D. it is very costly and only a little faster than QM-40. the planes are bigger. the parts come from all over the world. the motors in the past have been hard to run on a consistant basis. now there better but still need lots of know how to keep them running at there peak. the cost are around 2500 to 4500 per set up dependind on what you want to fly.