UK company Reaction Engines has tested its innovative precooler at airflow temperature conditions equivalent to Mach 5, or five times the speed of sound. This achievement marks a significant milestone in its ESA-supported development of the air-breathing SABRE engine, paving the way for a revolution in space access and hypersonic flight.
Click here for original story, Air-breathing engine precooler achieves record-breaking Mach 5 performance
Source: ESA Space News