NASA Surpasses Test Facility Record With J-2X Powerpack Test | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

** Airborne 11.21.14 ** HD iPad-Friendly -- Airborne 11.21.14 **
** Airborne 11.19.14 ** HD iPad-Friendly -- Airborne 11.19.14 **
** Airborne 11.17.14 ** HD iPad-Friendly -- Airborne 11.17.14 **

Tue, Jun 12, 2012

NASA Surpasses Test Facility Record With J-2X Powerpack Test

Longest Firing Ever Conducted At Stennis 'A' Test Complex

NASA's Stennis Space Center near Bay St. Louis, MS, broke its own record Friday when it conducted a test on the new J-2X powerpack. The test lasted for 1,150 seconds, surpassing the previous record by more than a full minute. For NASA, the test marked a milestone step in development of a next-generation rocket engine to carry humans deeper into space than ever before. For Stennis, the 19-minute, 10-second test represented the longest duration firing ever conducted in the center's 'A' Test Complex.

"This is the longest and the most complex J-2X test profile to date," said Mike Kynard, NASA's Space Launch System liquid engines element manager. "By combining as many test objectives as we can, we aim to get the most out of every opportunity and work as affordability and efficiently as possible while maintaining a reasonable level of risk."

The powerpack is a system of components on the top portion of the J-2X engine, including the gas generator, oxygen and fuel turbopumps, and related ducts and valves. As designed, the powerpack system feeds the thrust chamber system, which produces engine thrust. By removing the thrust chamber assembly, including the main combustion chamber, main injector and nozzle, engineers can push more easily the turbomachinery components over a wide range of conditions to demonstrate durability and safety margins.

"Setting a new record for the longest duration test on one of our stands in the A complex is a testament to the longevity and versatility of our testing facilities," said Randy Galloway, engineering and test director at Stennis. "These stands, originally built in the 1960s to test the stages for the Apollo Program, then used for the Space Shuttle Program, now are being used to test for the next generation vehicle that will take us farther than we have ever gone."

This record-breaking test explored numerous operating points required for the fuel and oxidizer turbopumps. The results of this test will be useful for determining performance and hardware life for the J-2X engine turbopumps. The test also allowed operators to calibrate flow meters on the stand, which measure the amount of liquid hydrogen and liquid oxygen delivered to the powerpack.

Before the powerpack test, the longest firing in Stennis' A Test Complex occurred in August 1989, with a 1,075-second test of a space shuttle main engine. The B Test Complex still claims the record for test duration at more than 2,000 seconds.

The J-2X engine is the first human-rated liquid oxygen and liquid hydrogen rocket engine to be developed in four decades. It will power the upper stage of NASA's evolved Space Launch System, an advanced heavy-lift rocket that will provide an entirely new national capability for human exploration beyond Earth's orbit. The June 8 test is part of a second series of firings on the powerpack. NASA engineers performed an initial test of an Apollo-era powerpack at Stennis in 2008.

FMI: www.nasa.gov/stennis

Advertisement

More News

Airborne 11.21.14: AEA's 3Q/14 Report, Fantasy Of Flight, Modernizing The NAS

Also: Holland Wants Gold, FAA Strangling UAVs?, RAF WWII Trainer For Sale, Bf109s Live, Georgia v Aerospace Engineers The Aircraft Electronics Association has released its third-qu>[...]

Aero-News: Quote Of The Day (11.23.14)

"Reaching this stage that we call ATLO is a critical milestone. This is a very satisfying point of the mission as we transition from many teams working on their individual elements>[...]

ANN FAQ: Getting The Most Out Of ANN's Newsletters

ANN goes through a lot of trouble to make the graphics flashy and cool and an integral part of the story. But let's face it, they're bandwidth-intensive. So here are a couple of th>[...]

Air Force Funds Research On Thermal Management Technology For Fighters

Heat Generated By Electronic Systems A Growing Challenge Managing heat that is generated by electronic subsystems in next-generation aircraft is a vexing challenge for aerospace sy>[...]

Raytheon Successfully Demonstrates Airborne Electronic Attack System

Prototype Test Flights Evaluate Integrated Electronic Warfare Capabilities The U.S. Navy and Raytheon successfully demonstrated an end to end, first of its kind, integrated electro>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2014 Web Development & Design by Pauli Systems, LC