Tech

February 13, 2013

NASA set for new round of J-2X testing at Stennis

NASA’s progress toward a return to deep space missions continues with a new round of upcoming tests on the next-generation J-2X rocket engine, which will help power the agency’s Space Launch System to new destinations in the solar system. SLS is managed at NASA’s Marshall Space Flight Center in Huntsville, Ala.

Beginning this month, engineers will conduct a series of tests on the second J-2X development engine, designated number 10002, on the A-2 Test Stand at NASA’s Stennis Space Center in Mississippi. Once the series is completed, the engine will be transferred to the A-1 Test Stand to undergo a series of gimbal, or pivot, tests for the first time.

“The upcoming test series is not only a critical step forward, but important to the Stennis test team, as well,” said Gary Benton, manager of the J-2X test project at Stennis. “This test series will help us increase our knowledge of the J-2X and its performance capabilities. In addition, the series will help us maintain the high skill level of our team as we look ahead to continued J-2X testing and testing of the RS-25 engines that will be used to power the SLS first-stage.”

The first objective of the testing is to verify and demonstrate the engine’s capability. Data from what is known as hot-fire engine tests will be compared to the performance of the first engine. Engineers also will vary liquid hydrogen and liquid oxygen inlet pressures and subject the engine nozzle to higher temperatures than in previous tests to see what effect they have on performance.

NASA already has conducted successful tests on engine number 10001 and on the J-2X powerpack assembly. In total, 34 tests were conducted on the J-2X engine and powerpack, with the J-2X achieving a full flight-duration firing of 500 seconds in the eighth test, earlier than any rocket engine in U.S. history.

The engine is being designed and built by NASA and Pratt & Whitney Rocketdyne of Canoga Park, Calif., to power the upper stage of the 130 metric-ton (143-ton) version of the SLS rocket.

The SLS will launch NASA’s Orion spacecraft and other payloads from the agency’s Kennedy Space Center in Florida, providing an entirely new capability for human exploration beyond low-Earth orbit.

 




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


 
 

 

Headlines December 19, 2014

News: SpaceX’s attempt to land rocket on floating barge postponed - It’s set to be one of the most groundbreaking moments in humanity’s six decades of space exploration. Obama signs $1.1 trillion spending bill into law - President Obama signed the $1.1 trillion federal spending measure into law Dec. 16, officially ending any threat of a government...
 
 

News Briefs December 19, 2014

Trial set for ex-Navy engineer in military secrets case A former Navy civilian engineer is scheduled to stand trial next summer on charges of trying to steal aircraft carrier schematics. Media outlets report that 35-year-old Mostafa Awwad of Yorktown, Va., pleaded not guilty Dec. 17 to two counts of attempted exportation of defense articles and...
 
 
Army photograph by C. Todd Lopez

Army to launch cruise missile-detecting aerostat at Aberdeen Proving Ground

Army photograph by C. Todd Lopez The Army plans to launch an aerostat, part of the “Joint Land Attack Cruise Missile Defense Elevated Netted Sensor,” in late December 2014. The JLENS aerostat will be tethered to the...
 

 
Air Force photograph by SrA. Jordan Castelan

AF delivers Iraqi F-16s for training in US

Air Force photograph by SrA. Jordan Castelan Iraqi air force captain Hama conducts preflight inspections while inside a new to service Iraqi F-16 Fighting Falcon Dec. 17, 2014, located at the nearby Tucson International Airport...
 
 
Air Force photograph by SSgt. Derek VanHorn

Short-notice: A new way to exercise

Air Force photograph by SSgt. Derek VanHorn Airmen from Kadena Air Base, Japan, prepare for an aeromedical evacuation exercise on a KC-135 Stratotanker Dec. 5, 2014, at Misawa Air Base, Japan. The operation was executed in supp...
 
 
Lockheed Martin photograph by Andy Wolfe

Japan, Australia to provide F-35 maintenance sites in Pacific region

Lockheed Martin photograph by Andy Wolfe An F-35C Lightning II joint strike fighter carrier variant prepares to launch from the aircraft carrier USS Nimitz in the Pacific Ocean, Nov. 6, 2014. Japan and Australia will be sharing...
 




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>