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HyperSoar, a DoE project for a Mach 10 plane using rocket-based combined cycle propulsion to boost-skip between 35 and 60 km altitude, crossing Tokyo to Chicago in 72 minutes or launch an orbital payload at the peak of its trajectory:

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ToughSF

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22,967 просмотров • 5 месяцев назад •via X (Twitter)

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