BBC4 年
Hybrid air-breathing jet engines for space travel
However, the compression of air at Mach 5 causes superheating, so the engine will need to be cooled using a cryogenic heat exchanger. This engine technology could also dramatically cut the ...
BBC4 年
Hybrid air-breathing jet engines for space travel
However, the compression of air at Mach 5 causes superheating, so the engine will need to be cooled using a cryogenic heat exchanger. This engine technology could also dramatically cut the ...