March 2021 Boom Supersonic recently received a strategic investment from American Express Ventures that the company says will help support the continued development of its Overture supersonic airliner. The investment comes as Boom has outlined a roadmap to build and roll out the aircraft around 2025, with passenger flights commencing in 2029. As a precursor, Boom in October introduced its XB-1 Supersonic demonstrator, which will fly this year to test concepts for the final Overture design. Blake Scholl, Boom founder and CEO, called 2021 a pivotal year for the Denver-based company. “As we prepare to fly our supersonic demonstrator, XB-1, we are also accelerating [development of] Overture.”