What I've always wondered about these sort of accounts is, if you scale down an aircraft, does the same aerodynamics apply?
I do know for a fact that an increase or decrease in scale requires a lot higher adjustment in power since the overall volume is affected at a much higher rate than just the scale... but what about the aerodynamics? The wind-tunnel testings would obviously mean that the way the air flows around the aircraft doesn't change with scale... but what I'm talking about is, if one changes the scale of a plane, but cannot exactly adjust the weight accordingly (due to problems like limited engine choices..) - wouldn't this mean the plane needs some sort of adjustments to the design to compensate for it?