BAE Systems and Reaction Engines to develop hypersonic space engine

Reaction Engines' single-stage-to-orbit Skylon spacecraft took a step closer to reality today as BAE Systems announced that would buy a 20 percent stake in the company as part of an agreement to help develop Reaction's Synergetic Air-Breathing Rocket Engine (SABRE) hypersonic engine designed to propel the Skylon orbiter.
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