Faster than the speed of sound comes the plane of the future. It has cost at least fifteen times the original estimates. It is described as a “commercial disaster" by a review committee of one of the countries that built it. It is besieged by the environmentalists. The Concorde is the benighted offspring of Anglo-French diplomacy and once-and-future dreams of glory in the skies. Now its builders are trying to keep it from crashing in a sea of red ink.