Space

July 18, 2014

NASA begins engine test project for space launch system rocket

RS-25 rocket engine No. 0525 is positioned onto the A-1 Test Stand at NASAís Stennis Space Center in Mississippi preparation for a series of developmental tests.

Engineers have taken a crucial step in preparing to test parts of NASA’s Space Launch System rocket that will send humans to new destinations in the solar system.

They installed July 17 an RS-25 engine on the A-1 Test Stand at the agency’s Stennis Space Center near Bay St. Louis, Miss.

The Stennis team will perform developmental and flight certification testing of the RS-25 engine, a modified version of the space shuttle main engine that powered missions into space from 1981 to 2011.† The SLS’s core stage will be powered by a configuration of four RS-25 engines, like the one recently installed on the A-1 stand.

“This test series is a major milestone because it will be our first opportunity to operate the engine with a new controller and to test propellant inlet conditions for SLS that are different than the space shuttle,” said Steve Wofford, SLS Liquid Engines Element manager. “This testing will confirm the RS-25 will be successful at powering SLS.”

Early tests on the engine will collect data on the performance of its new advanced engine controller and other modifications. The controller regulates valves that direct the flow of propellant to the engine, which determines the amount of thrust generated during an engine test, known as a hotfire test. In flight, propellant flow and engine thrust determine the speed and trajectory of a spacecraft. The controller also regulates the engine startup sequence, which is especially important on an engine as sophisticated as the RS-25. Likewise, the controller determines the engine shutdown sequence, ensuring it will proceed properly under both normal and emergency conditions.

“Installation of RS-25 engine No. 0525 signals the launch of another major rocket engine test project for human space exploration on the A-1 Test Stand,” said Gary Benton, RS-25 rocket engine test project manager at Stennis.

The SLS is designed to carry astronauts in NASA’s Orion spacecraft deeper into space than ever before, to destinations including an asteroid and Mars. NASA is using existing and in-development hardware and infrastructure, including the RS-25 engine, to the maximum extent possible to enable NASA to begin deep space missions sooner.

Testing of engine No. 0525 begins in the coming weeks on a test stand originally built in the 1960s for Apollo-era engines that helped launch the lunar missions. The stand has since been used for several major testing projects, and NASA spent almost a year modifying the structure to accommodate the RS-25 engine.

The SLS Program is managed at NASA’s Marshall Space Flight Center in Huntsville, Ala. Aerojet Rocketdyne of Sacramento, Calif., is on contract with NASA to adapt the RS-25 engines for SLS missions.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines October 20, 2014

News: Navy grounds ‘Top Guns’ - The F/A-18s needs spare parts and in too many cases they’re being taken from brand new jets. This is a risk to national security and pilots’ lives.   Business: Boeing seeks revised schedule for U.S. aerial tanker - Boeing is revising its master schedule for developing the new U.S. Air Force...
 
 

News Briefs October 20, 2014

New military medical team to help with Ebola in U.S. Defense Secretary Chuck Hagel has ordered the military to prepare and train a 30-member medical support team that could provide short-term help to civilian health professionals if there are more Ebola cases in the United States. His spokesman, Rear Adm. John Kirby, says the team...
 
 

Dragon ‘fires up’ for flight

The Air Force and NATO are undergoing a cooperative development effort to upgrade the avionics and cockpit displays of AWACS aircraft belonging to the 552nd Air Control Wing at Tinker Air Force Base, Okla., and the NATO E-3 Sentrys from Geilenkirchen, Germany. The Diminishing Manufacturing Sources Replacement of Avionics for Global Operations and Navigation, otherwise...
 

 
Boeing photographs

Boeing-built X-37B successfully completes third flight

Unmanned spacecraft concludes record-setting 674-day mission   Boeing photograph A third mission of the Boeing-built X-37B Orbital Test Vehicle was completed on Oct. 17, 2014, when it landed and was recovered at Vandenberg...
 
 

Boeing concludes commercial crew space act agreement for CST-100/Atlas V

Boeing has successfully completed the final milestone of its Commercial Crew Integrated Capability Space Act Agreement with NASA. The work and testing completed under the agreement resulted in significant maturation of Boeing’s crew transportation system, including the CST-100 spacecraft and Atlas V rocket. NASA in July approved the Critical Design Review Board milestone for Boeing’...
 
 

AF to release small business research solicitations

The Air Force Small Business Innovation Research and Small Business Technology Transfer program office is set to release its fiscal year 2015 list of topics Oct. 22, on the SBIR/STTR website.  Small businesses and research institutions with expertise to address the topics’ technology challenges are encouraged to submit proposals. During 2014, the Defense Department SBIR...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>