The Economist -
5 Nov 2015 17:50

SOME good ideas take years of dogged perseverance to come to fruition. That has certainly been true of a hypersonic engine which Alan Bond, a British engineer, began developing in 1982. Its first incarnation was as part of a government-backed spaceplane project called HOTOL (horizontal take-off and landing), run by Rolls-Royce and British Aerospace. When the money for this dried up in 1989, Mr Bond and two fellow Rolls-Royce engineers set up a company called Reaction Engines to keep the work goi...
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