77-300 Altitude wing issues...

[IAF747 8]

The reasons for that were entirely political (they were talking rubbish when they said it was no longer profitable).

 

The airframes were good for at least another 20 years of service (Concorde had pretty low utilization despite its speed, compared to other long haul aircraft - it flew IIRC 1/3 as often as a typical 747, so if the 747 did three flights, Concorde would only complete one).

 

Best regards,

Robin.

 

Ummmm if it was profitable then it would have been kept flying. Investors would jump at something "profitable" so I don't know why you say it is.