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by fyfy18
2101 days ago
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A space plane is going to be more efficient. The idea is you fly the aircraft with jet engines (which use oxygen in the air) to their maximum altitude, and then switch over to rocket engines (which use oxygen in the fuel). So far all demonstrations have been of rockets mounted under a jet engine powered aircraft, which then detaches at space launch. But I don't think there is any reason why you couldn't have a SSTO air/spacecraft, other than we don't have the propulsion technology yet - it works in KSP though :-) |
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