Although the title of the world's most lethal fighter jet may still belong to the Lockheed Martin F-22 Raptor, the new kid on the block from Skunk Works, the F-35 Lightning II, has plenty to brag about itself. The F-22 is a pure air superiority fighter, made for maximum performance and complete aerial domination; on the other hand, the F-35 is a multi-role, lightweight fighter but essentially builds upon the legacy of the F-16 Fighting Falcon with new stealth technology. Still, if a fifth-generation light fighter is made to be affordable and flexible on the battlefield, so how long can…