Image: Andrey Larin engine9, CC0, via Wikimedia Commons
A U.S. company hopes a new supersonic airliner will carry passengers by 2029 — and fly them at speeds above Mach 1 over land with no sonic boom heard on the ground. Current testing will evaluate the feasibility and safety of new supersonic aircraft.
Boom Supersonic, with a factory at Piedmont Triad International Airport in Greensboro, North Carolina, U.S., says its Overture aircraft will cruise at Mach 1.7 with up to 80 passengers. Boom also says the Overture will take advantage of Mach cutoff physics, which refracts a sonic boom upward due to temperature and wind gradients affecting the local speed of sound. (The speed of sound varies with temperature, altitude, and other factors. At sea level at the standard temperature of 15 degrees C (59 degree…
