The Sabre is being hailed by some as the biggest advance in engine technology since the jet engine.
Developed by British company Reaction Engines Ltd, the new engine is capable of operating like a jet engine in the atmosphere and a rocket when it's in space. The technology is to be implemented in a new type of space plane known as Skylon that could potentially replace conventional rockets for accessing space and travel around the world in a matter of hours.
The development of the project has been given a further boost by an endorsement from the European Space Agency. "ESA are satisfied that the tests demonstrate the technology required for the Sabre engine development," said ESA's head of propulsion engineering Mark Ford. "One of the major obstacles to a re-usable vehicle has been removed. The gateway is now open to move beyond the jet age."
"A small British company with a dream of building a re-usable space plane has won an important endorsement from the European Space Agency (ESA) after completing key tests on its novel engine technology."
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