The Concorde was a supersonic passenger plane. It shuttled people between New York and Paris very quickly. When commercial Concorde flights began in 1976, the novelty and excitement of flying at twice the speed of sound led people to line up to take the flights. But after 27 years and several safety mishaps, the Concorde’s popularity waned. Flights were often less than half full, so British Airways, the operator, was losing money. Bigly.