Since the dawn of the jet age, military planners and industrialists have grouped the fighters borne forth from their iron loins into generations. Borrowing the term from biology, each generation is grouped by a series of improvements that make the successor distinct from the predecessor. Now, as the fifth generation F-35 Joint Strike Fighter slowly eases its way into American military service, and the fourth generation A-10s and F-16s that preceded it are phased out, the Pentagon is looking further into the future, ready to start the long and pricey conception of a sixth generation.
Image: Boeing Concept For 6th Generation Fighter Boeing Image
