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2024 AA Awards for Technology and Innovation (Group Honorable Mention)
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By NASA
As part of NASA’s Advanced Capabilities for Emergency Response Operations flight tests in November 2024, Overwatch Aero flies a vertical takeoff and landing aircraft in Watsonville, California.Credit: NASA NASA will conduct a live flight test of aircraft performing simulated wildland fire response operations using a newly developed airspace management system at 9 a.m. PDT on Tuesday, March 25, in Salinas, California.
NASA’s new portable airspace management system, part of the agency’s Advanced Capabilities for Emergency Response Operations (ACERO) project, aims to significantly expand the window of time crews have to respond to wildland fires. The system provides the air traffic awareness needed to safely send aircraft – including drones and remotely piloted helicopters – into wildland fire operations, even during low-visibility conditions. Current aerial firefighting operations are limited to times when pilots have clear visibility, which lowers the risk of flying into the surrounding terrain or colliding with other aircraft. This restriction grounds most aircraft at night and during periods of heavy smoke.
During this inaugural flight test, researchers will use the airspace management system to coordinate the flight operations of two small drones, an electric vertical takeoff and landing aircraft, and a remotely piloted aircraft that will have a backup pilot aboard. The drones and aircraft will execute examples of critical tasks for wildland fire management, including weather data sharing, simulated aerial ignition flights, and communications relay.
Media interested in viewing the ACERO flight testing must RSVP by 4 p.m. Friday, March 21, to the NASA Ames Office of Communications by email at: arc-dl-newsroom@mail.nasa.gov or by phone at 650-604-4789. NASA will release additional details, including address and arrival logistics, to media credentialed for the event. A copy of NASA’s media accreditation policy is online.
NASA’s ACERO researchers will use data from the flight test to refine the airspace management system. The project aims to eventually provide this technology to wildland fire crews for use in the field, helping to save lives and property. This project is managed at NASA’s Ames Research Center in California’s Silicon Valley.
For more information on ACERO, visit:
https://go.nasa.gov/4bYEzsD
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Rob Margetta
Headquarters, Washington
202-358-1600
robert.j.margetta@nasa.gov
Hillary Smith
Ames Research Center, Silicon Valley
650-604-4789
hillary.smith@nasa.gov
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Last Updated Mar 18, 2025 EditorJessica TaveauLocationNASA Headquarters Related Terms
Ames Research Center Advanced Capabilities for Emergency Response Operations Aeronautics Aeronautics Research Mission Directorate Flight Innovation View the full article
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By NASA
Main Menu Videos For Educators For Students TBD News About Help learners STEMify their summer through hands-on and engaging activities curated by the NASA eClips team. You’ll find something for everyone – Earth-based and out-of-this-world. This issue includes eClips videos, resources, and design challenges as well as partner activities and other recommended summer activities. We have organized them by the amount of time the activity will take so you can easily plan your day around them! Enjoy!
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Summer 2024 newsletter
Mar 17, 2025
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By NASA
Main Menu Videos For Educators For Students TBD News About Fall back to school with this edition of the NASA eClips newsletter! Educators are provided with a host of resources to help engineer a great school year! Videos and activities focus on comparing science and engineering practices. Two new Spotlite Design Challenges are launched on climate change and Earth-observing satellites! And a fun activity for learners to work in groups to design their own mission patches.
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Mar 17, 2025
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By NASA
A chevron nozzle is installed on NASA’s Learjet for a mid-March 2001 flight test at Lorain Country Airport to verify that in an emergency, the aircraft could be flown using only the experimental engine. Credit: NASA/Marvin Smith
Shortly after dawn on March 27, 2001, NASA pilot Bill Rieke took off from an airfield just outside of Phoenix in NASA’s blue-and-white Learjet 25 and flew low over a series of microphones for the first flight test of a groundbreaking NASA technology.
On one of the plane’s engines was an experimental jagged-edged nozzle that researchers at Glenn Research Center in Cleveland had discovered made aircraft significantly quieter. These initial flight tests were an important step toward using these “chevron nozzles” on modern aircraft, lowering noise levels for communities.
NASA Glenn has been exploring ways of reducing engine noise since the first jet airliners appeared in the 1950s. New turbofan engines in the 1960s were quieter, but the expansion of the overall airline industry meant that noise was still an issue. With the introduction of noise-limiting mandates in the 1970s, NASA and engine manufacturers embarked on a decades-long search for technologies to lower noise levels.
NASA researchers discovered that the military’s use of rectangular notches, or tabs, along an engine nozzle’s exit – to help disguise a jet fighter’s infrared signature – could also reduce engine noise by helping mix the hot air from the engine core and the cooler air blowing through the engine fan. In the 1990s, Glenn researcher Dennis Huff and his colleagues discovered that a serrated, or sawtooth, shape, referred to as a chevron, offered more promise.
Dennis Huff explains chevron nozzles, seen on a table, to U.S. Senator George Voinovich and other visitors inside the Aero-Acoustic Propulsion Laboratory facility in 2006. Huff was head of NASA Glenn Research Center’s Acoustics Branch at this point.Credit: NASA/Marvin Smith NASA contracted with General Electric and Pratt & Whitney to develop an array of tab and chevron designs to be analyzed in Glenn’s unique Aero-Acoustic Propulsion Laboratory (AAPL). Extensive testing in the spring of 1997 showed the possibilities for reducing noise with these types of nozzles.
Engine manufacturers were impressed with the findings but wary of any technology that might impact performance. So, in 1998, NASA funded engine tests of the 14 most promising designs. The tests revealed the chevron nozzle had a negligible 0.25% reduction of thrust. It was a major development for jet noise research.
In September 2000, Glenn’s Flight Operations Branch was contacted about the logistics of flight-testing chevron nozzles on the center’s Learjet 25 to verify the ground tests and improve computer modeling. Nothing further came of the request, however, until early the next year when Huff informed Rieke, chief of Flight Operations, that the researchers would like to conduct flight tests in late March—with just eight weeks to prepare.
Glenn’s Acoustics Branch worked with colleagues at NASA’s Langley Research Center in Hampton, Virginia, and the Arizona-based engine manufacturer Honeywell on the effort. They planned to conduct testing at Estrella Sailport just outside of Phoenix from March 26 to 28, 2001.
Bill Rieke and Ellen Tom with the chevron nozzle installed on the Learjet. NASA Glenn Research Center’s small Flight Operations team was heavily involved with icing research and solar cell calibration flights during this period, so arrangements were made for Tom, a Federal Aviation Administration pilot, to assist with the chevron flights. Credit: Courtesy of Bill Rieke With the required safety and design reviews, the eight-week target date would be difficult to meet for any test flight, but this one was particularly challenging as it involved modifications to the engine nacelle. While the special nozzle engineers created for the flights would allow them to switch between a six- and a 12-chevron design during testing, it also got hot quickly. This necessitated the installation of new sensors, rewiring of fire alarm cables, and the presence of an onboard test engineer to monitor the temperatures. The short turnaround also required expedited efforts to obtain flight plan approvals, verify the plane’s airworthiness, and perform normal maintenance activities.
Despite the challenges, Rieke and a small team delivered the Learjet to Estrella on March 25, as planned. The next day was spent coordinating with the large Langley and Honeywell team and acquiring baseline noise data. The pilots idled the unmodified engine as the Learjet flew over three perpendicular rows of microphones at an altitude of 500 feet and speed of 230 miles per hour.
View from below as NASA Glenn Research Center’s Learjet 25 passes overhead at the Estrella airfield with the experimental chevron nozzle visible on the left wing.Credit: Courtesy of Bill Rieke The flight patterns were repeated over the next two days while alternately using the two variations of the chevron nozzle. The researchers anecdotally reported that there was no perceptible noise reduction as the aircraft approached, but significant reductions once it passed. Recordings supported these observations and showed that sideline noise was reduced, as well.
The flights of the Learjet, which was powered by a variation of GE’s J-85 turbojet, were complemented by Honeywell’s turbofan-powered Falcon 20 aircraft. These flights ultimately confirmed the noise reduction found in earlier AAPL tests.
Overall, the flight tests were so successful that just over a year later the FAA began certifying GE’s CF34–8, the first commercial aircraft engine to incorporate chevron technology. The engine was first flown on a Bombardier CRJ900 in 2003. Continued studies by both NASA and industry led to the improved designs and the incorporation of chevrons into larger engines, such as GE’s GEnx.
According to Huff, the chevron’s three-decibel noise decrease was analogous to the difference between running two lawnmowers and one. Their comparatively easy integration into engine design and minimal effect on thrust made the chevron a breakthrough in noise-reduction technology. In 2002, NASA presented an innovation award to the Glenn, Langley, and Honeywell team that carried out the flights. Today, airliners such as the 737 MAX and 787 Dreamliner use chevron nozzles to lower noise levels for communities near airports.
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By NASA
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NASA / Maria Werries The ARMD 2024 Associate Administrator Awards were presented to NASA employees, contractors, and students or interns who distinguished themselves, either individually or as part of a group, through their overall approach to their work and through results they achieved during the award year.
LEGEND: ARMD NASA CENTERS
ARC = Ames Research Center
AFRC = Armstrong Flight Research Center
GRC = Glenn Research Center
HQ = Headquarters
LaRC = Langley Research Center
Technology and Innovation
Honoree (Individual)
Kenneth R. Lyons, ARC
Kenneth R. Lyons made significant contributions this past year that were successfully applied in advancing NASA’s state-of-the-art unsteady Pressure Sensitive Paint (uPSP) experimental measurement in NASA’s wind tunnels. Lyons was key to the development of innovative data processing capabilities such as custom software drivers necessary to transfer the high-speed uPSP data from NASA’s wind tunnels to its High-End Computer facility – as well as other data management and methodologies overall. The uPSP development team’s principal investigator referred to his work on replacing older legacy systems as a “masterpiece.”
Honoree (Group)
NASA GRX-810 Licensing Team
NASA’s GRX-810 Licensing Team demonstrated exemplary performance by developing a technologically significant new material, meeting community demands for rapid evaluation, and enabling broad industry availability through timely commercialization. The team’s efforts led to successful licensing to multiple parties, pioneering a novel approach for NASA by using co-exclusive licenses, and the negotiation of four co-exclusive licenses with commercial partners. This license structure will increase competition within the marketplace and provide incentive for each company to fast-track product development.
Team Lead: Dr. Timothy M. Smith, GRC
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Honorable Mention
Shishir Pandya, ARC
Shishir Pandya’s exemplary actions as the formulation and technical lead for the Propulsion/Airframe Integration (PAI) emerging technical challenge were instrumental in creating an actionable project plan that will examine complex aerodynamic interactions between sustainable propulsor technologies – such as open rotor concepts envisioned in programs like General Electric’s Revolutionary Innovation for Sustainable Engines (RISE). Pandya was instrumental in classifying the current PAI analysis capabilities at NASA, and scoping NASA’s, GE’s, and Boeing’s roles and responsibilities for open fan integration studies, both computational and experimental.
Honorable Mention (Group)
Electric Vertical Takeoff and Landing (eVTOL) Propulsion Team
The Revolutionary Vertical Lift and Technology project’s Electric Propulsion Team achieved major accomplishments – successfully completing a technical challenge to improve propulsion system component reliability by demonstrating significant improvements in 100-kilowatt electric motors. Through an integrated interdisciplinary approach including external partner collaborations, the team produced six major technological capabilities towards further development of NASA’s Advanced Air Mobility mission.
Team Lead: Mark Valco, GRC
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Honorable Mention (Group)
Self-Aligned Focusing Schlieren Team
The Self-Aligned Focusing Schlieren Team developed a highly innovative and impactful Schlieren system that revolutionizes high-speed flow visualization in aeronautics research by enabling the use of a highly efficient, non-intrusive optical measurement technique in physically constrained environments. This new approach drastically improves efficiency in accurately capturing and analyzing complex, high-speed airflows around advanced aerospace vehicles in a non-intrusive manner – providing precise visualization without requiring the cumbersome alignment procedures of traditional Schlieren systems.
Team Lead: Brett Bathel, LaRC
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Leadership and Management Excellence
Honoree
Anthony Nerone, GRC
Anthony Nerone demonstrated strong leadership in formulating and leading the implementation of the Hybrid Thermally Efficient Core project. He has successfully set up a framework to establish a high-performing project team that has been an example for other Aeronautics projects. Nerone’s strong project management has led industry to accelerate the development of advanced engine technologies which have started to see infusion into products – continuing United States leadership in sustainable aviation.
Program and Mission Support
Honoree
Diana Fitzgerald, LaRC (Booz Allen Hamilton)
Diana Fitzgerald has demonstrated innovation, responsiveness, and impact in her contributions to the Transformational Tools and Technologies (TTT) project. Her creative and comprehensive approach to enhancing TTT’s communication processes has significantly improved the efficiency and effectiveness of the project’s operations, enabling ARMD to advance critical strategic capabilities and partnerships. Her dedication has garnered widespread recognition from colleagues and leadership and has had a substantial and measurable impact.
Honoree (Group)
Airspace Operations Safety Program (AOSP) Resource Analyst Group
The AOSP Resource Analyst Group worked tirelessly to skillfully review and analyze the NASA Aeronautics budget – preparing programs and projects for planning, budget, and execution inputs. Their extraordinary performance in numerous AOSP activities building, tracking, and executing milestones resulted in a smooth and transparent execution of the program’s annual budget. The group has gone beyond the call of duty and their hard work and dedication is reflected in their discipline and commitment to NASA through critical, time-sensitive attention to detail and solution-focused problem solving.
Team Leads: Michele Dodson, HQ and Jeffrey Farlin, HQ
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Honorable Mention (Individual)
Shannon Eichorn, GRC
Shannon Eichorn developed and authored a compelling, creative vision for the future of aeronautics research and of NASA’s working environment. She envisioned and described a future in which NASA’s aeronautics research goals, future technologies, workforce, and capabilities are in synergy to maximize research quality and impact. Eichorn presented this vision to numerous leaders and groups at NASA, and the excitement in the room at each presentation led to engaging follow-on discussions and several workstream groups requested Eichorn to present to their full group. Her efforts inspire not only ARMD, but the entire agency.
High Potentials
Honoree
Matthew Webster, LaRC
Matthew Webster has had significant impact and contributions to meeting goals in the Convergent Aeronautics Solutions and Transformational Tools and Technologies projects. In his short time at NASA, he has rapidly demonstrated exceptional ability to adapt and apply technical expertise across multiple NASA projects to advance towards project technical goals. Webster has shown his leadership ability, providing exceptional skills at creating a healthy team environment enabling the group to successfully meet project goals.
Honorable Mention
Dahlia Pham, ARC
Dhalia Pham’s contributions as a system analyst, researcher, and teammate in support of NASA’s efforts in electrified aircraft propulsion have shown an ability to creatively solve problems, analyze impacts, present results with strong communication skills, and collaborate with and mentor others. Her technical acumen and leadership ability raise the bar, making her an established leader amongst her peers.
Strategic Partnerships
Honoree
Salvatore Buccellato, LaRC
Salvatore Buccellato identified collaborative opportunities in hypersonics research that were mutually beneficial to NASA, the Defense Advanced Research Projects Agency (DARPA), and other non-NASA entities through his program management experience and knowledge of NASA people and capabilities. Buccellato was able to leverage NASA and non-NASA expertise and capabilities, along with DARPA funding, to further mature and advance hypersonic technologies via ground and flight tests with the goal of enabling operational flight systems. His exemplary work helped to significantly advanced hypersonic technologies and its workforce, and are expected to lead to further partnered activities for NASA.
Pushing the Envelope
Honoree (Group)
Advanced Power Electronics Team, GRC
The Advanced Power Electronics Team of the Advanced Air Transport Technology project completed an ambitious design of a prototype flight-packaged, altitude-capable electric motor drive for aviation. Their work pushed past the state of the art in flight motor drives in several areas including power density, efficiency, and power quality – and is a steppingstone towards megawatt-level, cryogenically cooled motor drives. The electric motor design underwent many successful tests and exercises, and the team’s subsequent publications and expertise help the electrified aircraft industry push past several barriers.
Team Leads: Matthew G. Granger, GRC
View Group Honorees
2024 AA Award Honorees PDF
ARMD Associate Administrator Award
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Last Updated Mar 06, 2025 EditorLillian GipsonContactJim Bankejim.banke@nasa.gov Related Terms
Associate Administrator Awards View the full article
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