Incorporating the "Sabre" engine system into a passenger aircraft would involve redesigning its entire engine, so inventors do not expect it would ever be used for more than 10 per cent of flights.
But they claim it could revolutionize space flight, the purpose it was designed for, by allowing aircraft to fly directly into orbit and back to earth in one clean stage.
Current jet engines are not powerful enough to launch an aircraft into space because they can not operate at a high enough power without overheating.
# posted by Bill C @ 2:22 PM
