Boom Supersonic is advancing with further testing of its supersonic aircraft but the future viability of such commercial flight still remains unclear due to the implications for emissions. Boom reached a new milestone, a fifth flight for its XB-1 demonstrator reaching Mach 0.69. The Overture, the supersonic aircraft in the works, will be constructed at Boom’s Superfactory. To power Overture, Boom is developing the Symphony, a bespoke engine that promises efficient and eco-friendly supersonic performance. Boom Supersonic’s advancements are impressive, but the aviation sector faces significant hurdles beyond just technological innovation. A major concern is the industry’s economic sustainability, especially as it transitions to sustainable aviation fuel (SAF). Airlines now face a tough decision: either adopt SAF to reduce emissions…