An experienced craftsman can produce amazing things with a simple set of tools…
So true and no question about what wonders such a person can create. Now take into account the scale of these projects and the number of highly skilled craftsman required and questions do pop up. If they did it all by hand then kudos to them!
Some questions to answer would be:
1. Which natural phenomenon can reflect radar? Weather, doppler radar excluded of course.
2. Which of these natural phenomenon, can spoof radar systems to show high speeds and high maneuverability? How?
3. Same goes for modern observation equipment.
From there a clearer picture could emerge.