I love to see the posts from old engineers who declare that the wind tunnel testing is what produces a truly correct aircraft.
It helps - but the real reason the planes work is from the field work .
The flying darts from the fifties n sixties were attempts a for "speed-at any price."
I have a small Convair DART model made by one of the wind tunnel guys there - .
The long noses acted just like our pattern models with excessive forward side area -