The Concorde, a supersonic passenger aircraft, was equipped with turbojet engines. More specifically, it used Rolls-Royce/Snecma Olympus 593 engines, which were a modified version of the Bristol-Siddeley Olympus engines originally developed for military aircraft.
The Concorde's engines allowed it to achieve incredible speeds. It was capable of flying at a cruising speed of approximately Mach 2, which is twice the speed of sound. This corresponds to around 1,354 miles per hour (2,180 kilometers per hour) or roughly 1,180 feet per second (360 meters per second).
The Concorde's top speed was limited to Mach 2.04 (1,354 mph) to prevent excessive heat buildup on the airframe due to aerodynamic heating caused by the friction with the air at such high speeds. Operating beyond this limit could have posed risks to the structural integrity of the aircraft.
It's worth noting that the Concorde was retired from service in 2003, so these specifications apply to the original Concorde aircraft. No commercial supersonic passenger aircraft are currently in operation, although there are ongoing efforts to develop new supersonic aircraft designs.