RE: World Record RC Plane Speed?
I'd have to see the FAI rules of engagement for speed record attempts, but can someone quickly tell me if they limit the fuel ??
Sure seems to me that a good f3d airframe (or purpose built equivalent) with some 25-40% nitro running through a properly setup engine, and a prop selected for straight line speed, it would easily push well beyond what the FAI racing setup is capable of.
I too have seen some of the f3d planes up over 210 mph on the radar (dive entry). It does take a huge amount of power increase to get that extra 10-15 mph up to 225 or better. But with some effort, and perhaps that same airframe with a different engine, I believe it can be done.