As fighter aircraft get faster and faster there is a diminishing return on more aerodynamic streamlining in designs. You can only build the aircraft so “Aerodynamically Correct” once you have the best optimum design for speed, there is little you can do without changing the aircraft in-flight or the air itself. Of course both of those possibilities have been and are being looked at. Let’s think on the many types of fighter aircraft, which change their configurations in-flight. You have the F-8 C.