On Friday, the U.S. Air Force and Northrop Grumman [NOC] said that weapons testing for the company's B-21 Raider had started a week prior when the future stealth bomber released a conventional munition unspecified by the service and the company. The weapons release test validated the B-21's "digital models and the maturity of its open systems architecture," the Air Force said on Friday. "This test proves the B-21’s strike capability, proves its ability to rapidly onboard new weapons and solidifies…