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Reply to post: Re: @AC Piggy back rocket?

Reaction Engines' precooler tech demo chills 1,000°C air in less than 1/20th of a second

John Brown (no body) Silver badge
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Re: @AC Piggy back rocket?

"Imagine an SR-71 type aircraft that can go from ground to Mach 5 and to space and back."

Like the Spitfires in Dr Who? :-)

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