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Lift off

发布时间:2019-03-07 02:10:02来源:未知点击:

Civilian spaceflight took a giant leap last month, when the first private crewed spacecraft lifted off under rotor power—to an altitude of two and a half metres. Standing more than 20 metres tall and resembling a large cone with rocket-tipped rotor blades on top, the Rotary Rocket Company’s two-person Roton spacecraft is designed to launch under rocket power but land like a helicopter. The Roton’s maiden flight, at Rotary Rocket’s Mohave Desert base,