NASA & ATK to Conduct Full-Scale Ares I SRB Test

NASA and Alliant Techsystems Inc. [ATK] will conduct the first full-scale, full-duration test of the new first-stage solid rocket motor for the Ares I rocket at 1 p.m. MDT, on Tuesday, Aug. 25. The test will take place at the ATK test facility in Promontory, Utah.

The static firing of the five-segment solid motor, designated Development Motor -1, will last two minutes. The goal is to obtain valuable thrust, roll-control, acoustics and vibration data as engineers continue to design Ares I.

To attend the test, journalists must register with ATK. For information and to request credentials, contact ATK’s Trina Patterson at 801-699-0943. The registration deadline for U.S. reporters is Aug. 20. The deadline for foreign journalists is Aug. 13.

Interviews with project managers may be arranged in advance. News media bringing live broadcast trucks must request parking prior to the event.

The first-stage solid rocket motor is managed and tested by the Ares Projects Office at NASA’s Marshall Space Flight Center in Huntsville, Ala. ATK Space Systems is the prime contractor for the Ares I first stage. The Ares I rocket is designed to launch the Orion spacecraft and the next generation of NASA astronauts.

Ares I First Stage Motor to be Tested on August 25

NASA and ATK unveiled the completed Ares I first stage five-segment solid rocket booster yesterday in Promontory, Utah. The completed solid rocket booster is now installed horizontally in a test stand that was modified from the space shuttle’s four-segment configuration to fit the new five-segment Ares I booster. Instrumentation will be installed over the next month in preparation for the first major ground test of the NASA Constellation program August 25.

NASA’s Ares I launch vehicle will launch the future explorers in the Orion spacecraft to the International Space Station, the moon and beyond. The upcoming test will provide valuable thrust, roll-control, acoustics and vibration data as engineers continue to design the Ares I rocket.

“Generating 3.6 million pounds of maximum thrust at liftoff, Ares I first stage provides the backbone of NASA’s next-generation rocket,” said Alex Priskos, first stage manager for the Ares Projects Office at NASA’s Marshall Space Flight Center in Huntsville, Ala. “The planned two-minute test will be an awesome display of smoke and fire, a live testament reflecting the dedication, hard work and achievement of the people on this project. The entire Ares team is looking forward to the first development motor firing next month.”

The Ares I first stage has been under development since 2005. Based on the design of the space shuttle’s four-segment booster, the first stage differs from its predecessor in a few ways. These include the addition of a fifth segment, changes to the propellant grain, a larger nozzle opening and upgraded insulation and liner.

The propellant and cases remain the same as those used for more than three decades on the Space Shuttle Program. In fact, the cases used in this Ares I first stage ground test have collectively flown on 48 previous shuttle missions, including STS-1, the very first flight.

“Because we are using shuttle boosters in the design of the Ares I first stage, we are able to leverage decades of ground tests and shuttle flight processes,” said Mike Kahn, executive vice president, ATK Space Systems. “Our streamlined processes, quality and infrastructure, combined with the knowledge and lessons learned that have been transferred to the Ares I first stage program, go a long way to ensure mission success for the human spaceflight program.”

ATK is the prime contractor for the first stage five-segment solid rocket booster.