"The Northrop F-20 Tigershark is celebrated as the “greatest fighter never built.” Originating from the F-5E Tiger II, the F-20 offered cutting-edge avionics, a GE F404 engine propelling it to Mach 2.1, and a versatile weapons loadout, including AMRAAM and Maverick missiles"
“The F-20A Tigershark was fast, maneuverable, lethal, easy to fly and easy to maintain. But Northrop was never truly able to compete with the F-16 on cost and the Tigershark failed, ultimately, because it tried to be too many things. Too heavy to be a lightweight, lacking the stealth properties then being developed in super-secret “black” programs.
" The F-20A was also too light to be a robust, globe-girdling warplane like the F-15E Strike Eagle. It was an outstanding fighter, but in the end the Northrop F-20A Tigershark was the right aircraft at the wrong time.”