Key tests for Skylon project

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UK engineers have begun critical tests on a new engine technology designed to lift a spaceplane into orbit.

The proposed Skylon vehicle would operate like an airliner, taking off and landing at a conventional runway.

Its major innovation is the Sabre engine, which can breathe air like a jet at lower speeds but switch to a rocket mode in the high atmosphere.

Reaction Engines Limited (REL) believes the test campaign will prove the readiness of Sabre's key elements.

REL Managing Director Alan Bond describes the layout of the company's test stand.

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