This week in Edwards flight test history Published Feb. 15, 2017 412th Test Wing Public Affairs EDWARDS AIR FORCE BASE, Calif. -- On Feb. 15, 1958, the first Convair B-58 Hustler (55-665) arrived at the Flight Test Center for Phase IV testing, concluding a combined delivery and test flight. The four engine delta winged aircraft was the world’s first bomber designed to sustain supersonic speeds during its mission profile. This aircraft is part of the Air Force Flight Test Museum’s collection and is currently in storage.