There have been no commercial supersonic flights since the Anglo-French Concorde retired from scheduled service more than 20 years ago. But the U.S. space agency NASA is testing an improved supersonic ...
Aided by a quartet of Rolls-Royce Olympus 593 engines, the Concorde, the world's only commercially successful supersonic passenger plane, was capable of flying at speeds up to 1,354 mph (2,179 kph).