تماشای ویدئو F 35S COST COULD RISE BY 1 BILLION BECAUSE OF EXTRA TESTING WARTHOG 2017 از آی-ویدئو
Flight testing of Lockheed Martin Corp.’s F-35, the Pentagon’s costliest program, will take about a year to complete and require at least $1 billion more than planned, Congress’s watchdog agency said.