I'd bet most of the small foamies fly very well in a small area if they are kept lite. I can very easily fly my Eflite Ultimate in about a 50x50’ area, less than 25x25’ starts to get tough. I have even flown into my 2 car garage turned around and landed in the middle of it. Course that was flying a harrier to do that, but it can be done. You’ll need lots of power to fly in a small area though or be very very good at flying. When my Ultimate was flying on the stock brushed motor I could not fly in as small area with ease.