Free Newsletter
Register for our Free Newsletters
Airport, Border and Port Safety and Security
Left Nav Sep
Left Nav Sep
Civil Aircraft
Left Nav Sep
Civil Airlines, Airports and Services
Left Nav Sep
Communications and Navigation
Left Nav Sep
Education, Training and Professional Services
Left Nav Sep
Manufacturing and Materials
Left Nav Sep
Military and Defence Facilities
Left Nav Sep
Military Aviation
Left Nav Sep
Military Vehicles
Left Nav Sep
Naval Systems
Left Nav Sep
Personal Equipment
Left Nav Sep
Software and IT Services
Left Nav Sep
Space and Satellite
Left Nav Sep
Weapons, Ammunition and Explosives
Left Nav Sep
View All
Other Carouselweb publications
Carousel Web
Defense File Logo
New Material Logo
Pro Health Service Zone
Pro Manufacturing Zone
Prosecurity Zone
Web Lec Logo
Pro Engineering Zone

ATK Prepares Installation For Testing 5 Stage Solid Rocket Motor

Strict Standards: Only variables should be passed by reference in /home/defensef/public_html/components/com_zone/handleHTML.php on line 623
: 08 July, 2010  (New Product)
Ground testing to take place in September on world’s largest solid rocket motor as ATK and NASA complete the installation for the Ares I development motor
ATK Prepares Installation For Testing 5 Stage Solid Rocket Motor
Engineers and technicians at Alliant Techsystems and NASA have completed installation work on the second Ares I First Stage five-segment Development Motor (DM-2), in preparation for its static-fire, which is currently scheduled for early September.

The Ares I First Stage is the largest solid Rocket motor ever built. It was designed to maximize astronaut safety while providing the nation with a reliable launch capability for both crew and cargo missions. As the prime contractor, ATK continues to perform on schedule and cost in support of NASA's space exploration programs.

The motor, which is 154 feet in length and 12 feet in diameter, has been installed horizontally in a specialized test stand in Utah. Results from this test will be compared with data from the ground test of the first five-segment motor and Ares I-X test flight both successfully completed last year.

'A robust ground and flight test program is a critical part of human-rating to ensure reliability and safety when launching crew into any orbit,' said Charlie Precourt, VP and GM of ATK Space Launch Systems. 'This test is a vital milestone in further growing the performance database for this new five-segment solid Rocket motor.'

Although the five-segment motor is based on the design heritage of the flight-proven Solid Rocket Boosters on the Space Shuttle Program, it was upgraded utilizing modern technologies and materials. These include the addition of a fifth segment, changes to the propellant grain, a larger nozzle opening and upgraded insulation and liner.

'We designed this motor using a knowledge base gained from over three decades of operations, during which we constantly monitored and improved our design,' said Precourt.

ATK technicians are in the process of instrumenting the five-segment Rocket with sensors and gages to collect measurements on more than 750 data channels. This information will be used to evaluate performance, roll control, acoustics, motor vibrations, oscillations, nozzle modifications and insulation upgrades. The full-scale motor test will advance the safety, technology and knowledge of solid Rocket motors.

When fired, the motor will produce 3.6 million pounds of maximum thrust or 22 million horsepower. Utilizing the in-line configuration with a single five-segment solid Rocket motor first stage and liquid upper stage, this launch vehicle is designed to lift more than 54,000 pounds of payload directly to Low Earth Orbit.

'The combination of a solid propulsion first stage and liquid propulsion upper stage provides optimum payload capability, reliability and lowest cost,' said Precourt. 'These motors were designed not only to carry humans to orbit but also for use on a heavy lift vehicle where performance and reliability are key requirements.'

The DM-2 ground test will:

* Validate numerous design improvements to the insulation, liner, propellant and nozzle systems.
* Provide side load data that can be used in future test flights leading to heavy lift development.
* Compare roll torque data to information collected from the stable flight of Ares I-X to further the design of the roll control system.

The first stage is designed to be recovered and reused. This enables NASA and ATK to collect vital post-flight information and performance data, confirming a safe and robust design.
Bookmark and Share
Home I Editor's Blog I News by Zone I News by Date I News by Category I Special Reports I Directory I Events I Advertise I Submit Your News I About Us I Guides
   © 2012
Netgains Logo