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user-inactivated · 4121 days ago · link · · parent · post: Skylon: Promising Tests of the SABRE Engine
I'm trying to wrap my head around how this is possible.The pre-cooler technology is the key. It allows the incoming airstream to be cooled from over 1000 degrees C to minus 150 C in less than 1/100th of a second without any frost blockage.