Is this a proven technique? If I gave Godfrey a mountain of WSPR signal data and left him for a day under exam conditions could he reproduce the flight path of

Is this a proven technique? If I gave Godfrey a mountain of WSPR signal data and left him for a day under exam conditions could he reproduce the flight path of a flight I randomly choose? This must have already been done lots of times, to prove the technique? I am skeptical but at the same time... I Want To Believe.