Problem discovered at Edwards Air Force Base prompts critics to slam 'gigantically disappointing performance' of new planeThe Pentagon has grounded its fleet of F-35 fighter jets, after discovering a cracked engine blade in one plane.The problem was discovered during what the Pentagon called a routine inspection at Edwards Air Force Base, California, of an F-35A, the Air Force version of the sleek new plane. The Navy and the Marine Corps are buying other versions of the F-35, which is intended to replace older fighters like the Air Force F-16 and the Navy F/A-18.All versions a total of 51 ... Read More