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The United Launch Alliance is close to choosing an engine for its Vulcan rocket between Blue Origin’s BE-4 and Aerojet Rocketdyne’s AR-1. Meanwhile Orbital ATK is pitching a solid rocket motor for the Air Force’s Evolved Expendable Launch Vehicle launch system. Aviation Week editors have the details.
By Aviation Week4.2
390390 ratings
The United Launch Alliance is close to choosing an engine for its Vulcan rocket between Blue Origin’s BE-4 and Aerojet Rocketdyne’s AR-1. Meanwhile Orbital ATK is pitching a solid rocket motor for the Air Force’s Evolved Expendable Launch Vehicle launch system. Aviation Week editors have the details.

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