[NorthMountain]

Why not just take the Concorde specs and work from there?

Because the Concorde made a tremendous sonic boom. This experiment, along with a similar experiment sponsored by NASA, is all about massively reducing the sonic boom. The Concorde is an example of what NOT to do.

[adorno]

Because the Concorde made a tremendous sonic boom.

Then, it's bound to fail. You can't undo physics. If it had been possible, it would have been done long ago.

Still, it the idea is to reduce sonic booms, why not take the Concorde design and work to reduce or undo the sonic booms in that design?