The operator of the world’s biggest and most sophisticated fleet of warplanes isn’t planning on developing a major new dogfighter. How come?The U.S. Air Force has just released its latest official strategy for controlling the sky for the next 15 years. And for the first time in generations, the “air-superiority” plan doesn’t necessarily include a new fighter jet.That’s right—the world’s leading air force, the operator of the world’s biggest and most sophisticated fleet of fighter planes, isn’t currently planning on developing a major new fighter. The Air Force may be getting the F-35—its current fighter. But it probably won’t get an F-36 any time soon.