FIRST STOP EARTH ORBIT

摘要

A British aerospace technology company has announced what it claims is the biggest breakthrough in propulsion since the jet engine. Reaction Engines is developing a synergetic air-breathing rocket engine (Sabre) that could allow an aircraft to travel directly into Earth orbit. The technological breakthrough has come with the development and testing of the engine's pre-cooler, which is designed to cool continuously the incoming airstream from more than 1,000°C to -150°C in less than 1/100th second.