NASA's X-59 jet will fly faster than speed of sound. 2nd flight today

NASA's experimental supersonic X-59 jet designed to travel faster than the speed of sound is preparing for its second flight from California.
Flying

Boom Supersonic Test Aircraft Approaches Speed of Sound

Seven down. Three to go. Boom Supersonic—the developer of a 64-to-80-passenger commercial airliner that flies faster than the speed of sound—last week set speed and altitude records with its XB-1 test ...

NASA to resume supersonic aircraft tests. Here's what to know

NASA's experimental supersonic X-59 jet designed to travel faster than the speed of sound is preparing for its second flight from California.
FLYING Magazine

Hermeus Flies Second Supersonic Test Plane in Nine Months

Company aims to achieve supersonic speed with its Quarterhorse Mk 2.1 before advancing to more powerful aircraft.
The Aviationist on MSN

DARPA's High-Speed VTOL SPRINT Aircraft Receives X-76 X-Plane Designation

DARPA has assigned the designation X-76 to the Speed and Runway Independent Technologies (SPRINT) project, a Bell proof-of-concept technology demonstrator for a high-speed tiltrotor. The DARPA ...
New Atlas

DARPA's high-speed VTOL X-plane passes ground effect testing

Boeing subsidiary Aurora Flight Sciences is working on a high-speed VTOL military aircraft as part of DARPA's Speed & Runway Independent Technologies (SPRINT) program. Early ground effect testing has ...