Canadair CF-5 Freedom Fighter – Cost: Unknown
The F-5 Freedom fighter aircraft represented a breakthrough in air combat technology. It rose to popularity in the 1960s. Its ultra-low radar cross section made the aircraft difficult to spot at long range. The Freedom Fighter was the closest thing the world had to a stealth fighter at the time. This tiny “pocket fighter” was also built from the ground up as nimble dog-fighter. Most importantly, at least to outnumbered NATO nations facing the vast might of the Warsaw Pact, this fighter was incredibly cheap. It combined most of the hi-tech avionics and performance of more expensive aircraft like the F-4 Phantom with low-operating costs equivalent to the Russian Mig-21. The most recent Canadair CF-5 was sold to a private buyer, but the price is undisclosed.