The F-102 was prototyped and expected to go supersonic.....but the prototype just
hung at about 0.9 Mach or so, would not go faster.
A very young new aero engineer at General Dynamics thought he had the solution,
had to have a constant cross section of the whole airframe to minimize transonic drag.
So, they rebuilt the prototype fuselage with a coke bottle "area rule" shape, and it easily
slipped into supersonic. His name was Whitcomb. And later he came up with Whitcomb
Winglets....which my Long EZ has, and decades later, the airlines figured out that Long EZs had
the right idea, used on lots of them now.
And the Phantom II was an example of many. Two members of my family were "Phantom Phlyers",
as it said on their flight suit patches.
Bill