I take it you're referring to the "no sonic boom in my backyard" shenanigans that hampered flights to/from/over the US in the early days? These were sorted out

I take it you're referring to the "no sonic boom in my backyard" shenanigans that hampered flights to/from/over the US in the early days? These were sorted out for the key NY-Europe routes by 1977, just over a year from first commercial flight. https://en.wikipedia.org/wiki/Concorde#Operational_history https://en.wikipedia.org/wiki/Concorde#Operational_history