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ATK Completes Installation of World's Largest Solid Rocket Motor for Ground Test

  • NASA's Space Launch System Booster Test Scheduled for March

NASA and ATK (NYSE: ATK) have completed installing the first Space Launch System booster qualification motor, QM-1, in a specialized test stand in Utah. The largest solid rocket motor ever built for flight, QM-1 is now being prepared for its static-fire test, which is scheduled for March 11.
The first qualification motor for NASA's Space Launch Systems booster is installed in ATK's test stand in Utah - ready for a March 11 static-fire test.

"Testing before flight is critical to ensure reliability and safety when launching crew into space," said Charlie Precourt, vice president and general manager of ATK's Space Launch division. "The QM-1 static test is an important step in further qualifying this new five-segment solid rocket motor for the subsequent planned missions to send astronauts to deep space."


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For this test, QM-1 is being conditioned to 90 degrees to test its higher temperature capabilities against the required temperature range. Lying horizontally in the test stand, the motor is 154 feet in length and 12 feet in diameter. When fired, QM-1 will produce 3.6 million pounds of maximum thrust.

The five-segment rocket motor in conjunction with four RS-25 engines will propel NASA's Space Launch System (SLS) off the launch pad . The SLS, along with NASA's Orion spacecraft, provides a flexible deep space exploration platform to take humans and cargo to multiple destinations across our solar system.

Orion successfully experienced its first flight test in December, orbiting twice around the earth and flying as far away as 3,600 miles, – more than 15 times farther than the International Space Station and farther than a human spaceflight vehicle has traveled in 40 years. The first test flight of SLS, called Exploration Mission-1 (EM-1), is just a few years away. EM-1 will use two of ATK's five-segment solid rocket motors.

The SLS five-segment motor is based on the design heritage of the flight-proven solid rocket boosters used on the Space Shuttle Program, and was upgraded using new technologies and updated materials.

"While we made modifications to our booster for NASA's new SLS, during the 30 years of the Space Shuttle Program, we also constantly monitored and improved our design," said Precourt, a four-time space shuttle astronaut.

ATK technicians are now instrumenting the five-segment rocket to collect measurements on more than 500 data channels. This information will be used to evaluate motor performance, acoustics, motor vibrations, nozzle modifications, insulation upgrades and avionics command and control performance. The full-scale motor test will further improve the safety, technology and knowledge of solid rocket motors.

The SLS and Orion programs are supported by a network of hundreds of suppliers representing 47 states. ATK has 29 key SLS booster suppliers across 16 states: Alabama, Arizona, California, Connecticut, Indiana, Kentucky, Massachusetts, Minnesota, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Texas, Utah and Wisconsin.

Recent milestones include:

  • EFT-1 (Orion) flight test (Dec. 5, 2014)
  • Launch abort motor igniter test (Sep. 30, 2014)
  • Booster Critical Design Review (August 7, 2014)

Source : Alliant Tech Systems, Inc (ATK) (NYSE: ATK) - view original press release

Published on ASDNews: Jan 22, 2015

 

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