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Reaction Begins Building U.S. Hypersonic Engine Test Site // AviationWeek.com Commercial Aviation Channel
http://aviationweek.com/awindefense/reaction-begins-building-us-hypersonic-engine-test-site
A high-temperature airflow test site designed to evaluate a key technology in the Reaction Engines' hypersonic air-breathing combined cycle Sabre rocket engine is under assembly.
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