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Chapter 845 - 743: Spaceplane Test Flight
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... ough the aircraft didn’t actually break through the atmosphere into space, it reached an altitude of thirty thousand meters with the powerful push of its engine and maintained a supersonic speed of Mach 7.
This is incredibly astonishing for an aircraft, considering that under normal circumstances, the flight speed of supersonic fighter jets is below Mach 3.
One could construct a plane capable of accelerating to Mach 10, but such planes are not designed for fighter jet-type high m ...
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