ATK and Nasa are to test the second fully developed Ares five-segment solid rocket motor known as development motor-2 (DM-2).
During the test, a total of 53 design objectives will be measured through more than 760 instruments.
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DM-2 is a cold motor test, in which the motor will be cooled to 40°F to measure solid rocket motor performance at low temperatures and to verify design requirements of new materials in the motor joints.
The new materials will allow for the elimination of the joint heaters necessary in the original four-segment motor design.
Other objectives include data gathering on vital motor upgrades, such as the new insulation and motor case liner as well as the redesigned nozzle that increases the robustness of the design.
When fired, the motor will produce a maximum thrust of 3.6 million pounds or 22 million horsepower.
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By GlobalData
