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ATK Tests Second Ares Development Motor

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By Marina Malenic ATK [ATK] yesterday conducted a successful ground test of the second Ares five-segment Development Motor (DM-2), the company said. Initial test data indicated that the motor, which was chilled to a 40 degree F core temperature since early July, performed as designed, according to ATK. DM-2 produced approximately 3.6 million pounds of thrust and burned for just over two minutes. DM-1 was conducted approximately one year ago, on Sept. 10. On Oct. 28, the Ares I-X was…

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