> Given the fuel needed per passenger per mile What are the expected numbers for the Boom plane? The Concorde was a little over 1/3 as efficient per passenger

> Given the fuel needed per passenger per mile What are the expected numbers for the Boom plane? The Concorde was a little over 1/3 as efficient per passenger-mile compared to a contemporary 747. I seem to recall that the planned successor to the Concorde was considerably more fuel efficient. I imagine it would still be more thirsty than a typical subsonic airliner, but I am curious to know how it actually pencils out.