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AFRL achieves record-setting hypersonic ground test milestone
by Staff Writers
Wright-Patterson AFB OH (SPX) Aug 12, 2019

The AEDC Aerodynamic and Propulsion Test Unit at Arnold Air Force Base supports recent testing for the Air Force Research Laboratory Medium Scale Critical Components Scramjet program. The Northrop Grumman-produced engine was successfully operated at conditions above Mach 4 and has set the record for highest thrust produced by an air-breathing hypersonic engine in Air Force history. (U.S. Air Force photo/Holly Jordan)

An Air Force Research Laboratory and Air Force Test Center ground test team set a record for the highest thrust produced by an air-breathing hypersonic engine in Air Force history.

"AFRL, in conjunction with Arnold Engineering Development Complex and Northrop Grumman, achieved over 13,000 pounds of thrust from a scramjet engine during testing at Arnold Air Force Base," said Todd Barhorst, AFRL aerospace engineer and lead for the Medium Scale Critical Components program.

The 18-foot-long Northrop Grumman engine endured a half hour of accumulated combustion time during the nine months of testing.

"The series of tests, ran in conjunction with AEDC and AFRL, on this fighter-engine sized scramjet was truly remarkable," said Pat Nolan, vice president, missile products, Northrop Grumman. "The scramjet successfully ran across a range of hypersonic Mach numbers for unprecedented run times, demonstrating that our technology is leading the way in delivering large scale hypersonic platforms to our warfighters."

"The plan for a larger and faster hypersonic air breathing engine was established 10 years ago during the X-51 test program, as the Air Force recognized the need to push the boundaries of hypersonic research," Barhorst said. "A new engine with 10-times the flow of the X-51 would allow for a new class of scramjet vehicles."

An evaluation of the nation's test facilities concluded that none could test an engine at this large of a scale in a thermally-relevant environment. To address the issue, AEDC's Aerodynamic and Propulsion Test Unit facility underwent a two-year upgrade to enable large-scale scramjet combustor tests over the required range of test conditions.

The AEDC team also successfully leveraged technology developed by CFD Research Corporation under the Small Business Innovative Research program. This technology proved crucial in achieving most of the required test conditions.

"Our collective team has worked hard over the past few years to get to where we are today," said Sean Smith, lead for the AEDC Hypersonic Systems Combined Test Force ground test team. "We've encountered numerous challenges along the way that we've been able to overcome thanks to the dedication and creativity of the team. We've learned quite a bit, and I'm proud of what we've accomplished. These groundbreaking tests will lead the way for future hypersonic vehicles for a range of missions."

"After years of hard work, performing analysis and getting hardware ready, it was a great sense of fulfillment completing the first successful test of the world's largest hydrocarbon fueled scramjet," added Barhorst.


Related Links
Air Force Research Laboratory
Rocket Science News at Space-Travel.Com


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ROCKET SCIENCE
Pentagon working on 9 separate hypersonic missile projects to take on Russia, China
Washington (Sputnik) Jul 31, 2019
Earlier this year, the US Air Force announced that it was in a 'race' with Russia and China to develop new hypersonic missile systems, with the Pentagon saying it would use President Trump's new 'Space Force' to try to counter Russian and Chinese advances in this area. The US expects to test at least two hypersonic missiles by the end of 2019. In addition to the seven Pentagon hypersonic missile-related projects which have already been publically acknowledged, the US is also working on 'at least t ... read more

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