They seem to have dramatically reduced fuel consumption, but fuel wasn't the issue for the concord the limited number of viable routes where.
Going from the Concrods 3550nm range to 4250nm should help with that as it opens up several new routes and longer routes see a more significant drop in travel times.
Going from the Concrods 3550nm range to 4250nm should help with that as it opens up several new routes and longer routes see a more significant drop in travel times.