It is curious to know why Scientific American has used information from a First Officer with a minor carrier, are we missing something here? Does this chap have knowledge and experience beyond his rank? Could they not find someone more experienced and knowledgeable?
I fear that the answer goes back to the days when Concorde first flew and the American authorities made every effort to keep it out, because it had not been made by an American company. This article seems to be another crude attempt to discredit Concorde and it is all the more surprising in such a reputable magazine.