The first swept-wing carrier-based fighter aircraft built for the US Navy, the F9F Cougar, marked a major leap forward in naval aircraft design from its predecessor, the straight-wing Grumman F9F Panther. The prototype of the first version of the Cougar, the F9F-6, first took to the air in September 1951, just six months after contract award. There were several different models of the Cougar, reflecting its varied uses as well as the general development...