video on tracking stealth planes

[y_p_w]

I personally think that a lot of the working theory were not practical until computer becomes affordable and small in size. Many of today's technology had been discovered but finally implemented when chips are cheaper than the value of problems they try to solve.

The faceted shape of Have Blue and the F-117A were a matter of not necessarily having the computing power to create a good stealth shape, so they created a shape that should deflect radar at incident angles with flat surfaces. That combined with a radar absorbing coating. The B-2 was the result of more computing power to create a better, more aerodynamic shape.

That being said, it's a ridiculously unaerodynamic shape. It absolutely needed a fly by wire system to stay in the air.