NASA’s experimental X-59 aircraft reached Mach 0.98 in recent Mojave Desert tests, edging toward its goal of quiet supersonic flight. The test included complex maneuvers to assess stability, control, ...
A fourth aircraft is now part of the Gulfstream G650 flight-test program. The newest ultra-large-cabin, ultra-long-range test aircraft flew for the first time June 6 and has spent more than five hours ...