There are many planes that work well in wind, but not in a 30 meter by 30 meter space. My 3.4M Supra sailplane, with no motor, does fine in 15 to 20 mph winds when ballasted, but not in a 30 M by 30 m space.
Your problem is where you are flying. Now, if you had 300 meters by 300 meters I could give you a long list of planes.
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