The completion of the Flight Performance Handling & Qualification testing is a key milestone in proving the jet's airworthiness with consistent performance for the full flight envelope.

The seventh mission of the world’s largest airplane further expanded its flight ... altitude Thursday, as crew members further expanded the world’s largest airplane’s flight test envelope.

During this flight ... systematically expand the flight envelope. The pilot, Geppetto, took XB-1 to the maximum pitch and yaw attitudes that we expect to see in flight. This testing was done at a safe ...

IN THE SKIES OVER MONTANA – Well, that was a first for me: I’d never had to sign a waiver to catch a flight before. I recently joined a mission on NASA’s DC-8 flying laboratory out of the ...

The XB-1 vehicle flew from Mojave Air & Space Port in California, reaching an altitude ... Friday's flight, the company said the aircraft's development team will continue to expand the flight ...