The secretive new B-21 bomber is flying as much as twice a week in flight test at Edwards Air Force Base, Calif., and ground tests of two other aircraft are also proceeding well, program officials revealed at AFA’s Air, Space and Cyber conference.
The structural fatigue test of the B-1B bomber, which began in 2012 and was initially expected to take five years, will wrap up in 2021, an Air Force Materiel Command spokesman told Air Force Magazine. The test will stress the B-1 to 28,000 hours on ...