Supercruise sounds like marketing spin, but in aviation it describes a very specific and demanding trick: flying faster than sound for long stretches without lighting fuel‑guzzling afterburners.

Boom Supersonic took a step toward its passenger jet ambitions Friday by completing the first flight of its demonstrator plane, called XB-1, at the Mojave Air & Space Port in California. The company ...

The days of fighter jets outrunning ground defenses are long since past, and new aerial innovations are focused on stealth and sensor technology. But raw speed still has a place. Supersonic flight, ...