I was actually discussing about the F-19 and Project Specter before, One forum member claims that he/his friend? saw a black aircraft F-111ish size with droopy wings fly underneath his plane and believes it could have took off from Nellis AFB.
The F-4 Phantom was once designated F-110 Specter and the F-111 Aardvark was nearly designated F-19
OK its just a typical 80s game ad but somthing similar to this design might exist but under another designation like F-24,
F-25 or so on
Still a piece of cold war history though
Such a nice aircraft design i would have these built if i was a pentagon official, Even the heavier F-119 pictured above
I was discussing about it here