It will be powered by a combination of a hybrid rocket and a jet engine from a Eurofighter-Typhoon.

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SpaceShip Two will use its hybrid rocket motor to propel itself into space.

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If the hybrid rocket needs to be shut down in a hurry all you need do is turn off the pump delivering the oxidiser.

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The term hybrid is used because this type of rocket motor uses neither all-liquid fuel nor all-solid fuel, but a combination of both.

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