Lockheed Martin coined the term fifth-generation fighter. It means an aircraft that employs stealth, supercruise and integrated avionics, a la F-22 and F-35.
Boeing apparently thinks it can do better, says Aviation Week's David Fulghum. He reports today that Boeing is working on a sixth-generation fighter that would appear after 2024.
Ok, since you've decided to mention it, Boeing, let's think about what new features will define a sixth-generation fighter?
My proposals: optionally manned cockpit, directed-energy defenses and variable-cycle propulsion.