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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:

ToughSF

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22,967 次观看 • 5 个月前 •via X (Twitter)

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#OTD in 1947 a captured German V-2 rocket was launched from the deck of US Navy carrier USS Midway South of Bermuda. Due to an erratic trajectory the rocket eventually broke up at altitude but regardless it was the first successful launch of a ballistic missile at sea.

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