Scheduled First Flight of the B-21 Raider Shelved Due To Problems Plaguing the Next Generation Project of the US Air Force
The development of the B-21 Raider is crucial for the US Air Force because it will replace the B-1 and B-2 that are getting old.
United States Us Air Force After Much Speculation Northrop Grumman First Launch Encounters Military Watch Magazine Air Force
Source: hngn.com