Aug 24, 2011

Michael Braukus/J D Harrington Headquarters, Washington
202-358-1979/5241 michael j braukus@nasa gov/j d harrington@nasa gov

Daniel Kanigan Marshall Space Flight Center, Huntsville, Ala 256-544-0034 daniel n kanigan@nasa gov

MEDIA ADVISORY: M11-177

NASA AND ATK FULL-SCALE SOLID ROCKET MOTOR TEST SET FOR SEPT 8

WASHINGTON -- NASA and Alliant Techsystems Inc (ATK) will conduct a full-scale test of a five-segment, solid rocket motor at the ATK Aerospace Systems test facility in Promontory, Utah, at 4:05 p m EDT, Thursday, Sept 8

To attend the test, journalists must register with ATK For information and to request credentials, contact ATK's Trina Patterson at 801-699-0943 or trina patterson@atk com The registration deadline for U S reporters is Sept 2 The deadline for foreign journalists is Aug 26

The static firing of the five-segment solid rocket motor, designated Development Motor-3 (DM-3), will last approximately two minutes DM-3 is the third in a series of development motors and the most heavily instrumented solid rocket motor in NASA history, with a total of 37 test objectives measured through more than 970 instruments

The DM-3 incorporates several performance-based improvements to the designs of the first two development motors Additionally, the core of DM-3 will be heated to 90 degrees Fahrenheit for this full-duration firing to verify the motor's performance at high temperatures

This test will continue to advance understanding of five-segment solid rocket motor performance and specifically assess performance at the highest end of the motor's accepted temperature range Through development testing, the solid rocket motor will be certified to fly at ambient temperatures ranging from 40 to 90 degrees Fahrenheit

The DM-3 test will follow wind constraint requirements different than past development motors Two days before the test, ATK's public relations will notify registered media of a go/no-go decision If no-go, the test will slip to the next day Notification of a decision to proceed will be made via email, website www atk com/dm3 and social media (Facebook and Twitter)

The solid rocket motor is managed by NASA's Marshall Space Flight Center in Huntsville, Ala ATK Space Systems is the prime contractor

For more information about NASA and agency programs, visit:

http://www nasa gov

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