The F-16 is probably the greatest military aircraft of all time.

The YF-16 was rolled out in 1973, 52 years ago…and it's still in active production.

Yeah, the YF-16 and a shiny new Block 72 are about as similar as a chimpanzee and Stephen Hawking but…what's wrong with taking the perfect lil' airframe and just slapping the latest and greatest on it?