The key to its design is a “reverse-camber” fuselage ... a “low boom” mode at Mach 1.6. Like the C949, the X-59 features a 30-meter needle-shaped nose—nearly half its length—to ...

NASA's new X-59 supersonic jet is a step closer to flight after passing an important ground test in March. Known as "engine speed hold," the test ensured that the X-59 can maintain a specific ...