Marty Bradley

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Marty Bradley
Academic background
Alma materUniversity of Southern California (PhD)[1]
ThesisFlow Models for the Design of a Hypersonic Iodine Vapor Wind Tunnel Nozzle with Chemical and Vibrational Nonequilibrium Effects (1994)

Marty Bradley is an American aerospace engineer who specializes in advanced propulsion, electric aircraft, and sustainable aviation.[2] He is a fellow of the American Institute of Aeronautics and Astronautics (AIAA),[3] an adjunct professor of aerospace and mechanical engineering practice at the University of Southern California (USC),[1] and a sustainable aviation consultant.[4]

Education and career[edit]

Bradley received his Ph.D. in aerospace engineering from USC in 1994.[1] He worked for Northrop Grumman in the 1980s, Rockwell International in the 1990s, then at Boeing until 2020, advancing to the position of Boeing Technical Fellow.[1] In 2020, he joined Electra.aero, a hybrid-electric aircraft company.[5]

Research and projects[edit]

In the 1990s, Bradley specialized in propulsion integration for hypersonic vehicles such as missiles and airplanes, and was the leader of the nozzle team for the Rockwell X-30.[6][7][8][9] He authored test standards documents for nozzle and flowpath testing.[10]

Later, Bradley was involved in the Transonic Truss-Braced Wing (TTBW) project. The TTBW is an experimental aircraft demonstrator designed with a long wingspan that burns much less fuel than traditional jet liners.[11][12][13] This was originally part of the Subsonic Ultra Green Aircraft Research (SUGAR) program, a series of NASA studies that investigated future technologies that would burn less fossil fuels, with the goal of predicting the technology and designs of commercial aircraft around the years 2030–2050.[2][14][15][16] Bradley was the principal investigator for SUGAR.[2] Boeing designed a low-emission aircraft concept called the Sugar Volt as part of this program.[17]

While at Boeing, Bradley created test plans for aviation biofuel demonstrations.[1] Aviation biofuel was later approved and used industry-wide. The use of aviation biofuel reduces net carbon dioxide emissions from aircraft. He also created a life-cycle assessment (LCA) tool for aircraft called qUWick, and integrated it into Boeing's commercial aircraft design process, which helps to evaluate the environmental impact of potential new aircraft.[18]

In a paper in Nature in 2022, Bradley and his co-authors investigated what would be needed to drive forward the fledgling electric aircraft industry, and concluded that batteries with high watt hours per kilogram and high safety and reliability were the main bottlenecks. The paper concluded that with sufficient research and investment, 600 watt hour per kilogram batteries suitable for the mass production of short-range electric aircraft could be developed within a decade.[19][20]

AIAA[edit]

Bradley became an American Institute of Aeronautics and Astronautics (AIAA) fellow in 2018.[21] He helped create and was the first chairman of the High Speed Airbreathing Propulsion Technical Committee and the yearly Electric Aircraft Technology Symposium (EATS).[22]

References[edit]

  1. ^ a b c d e "USC - Viterbi School of Engineering - Viterbi Faculty Directory". viterbi.usc.edu. Retrieved 2023-08-10.
  2. ^ a b c "Sustainable Aviation: Challenges, Design Implications, Recent Advancements, Noise, Emissions, Alternative Fuels, Electric Aircraft, and Emerging Technologies - On-Demand Short Course". aiaa.mycrowdwisdom.com. Retrieved 2023-08-10.
  3. ^ "Marty Bradley, Sustainable Aviation Consultant and Educator". American Institute of Aeronautics and Astronautics (AIAA). Retrieved 2023-08-10.
  4. ^ Barrera, Thomas P.; Bond, James R.; Bradley, Marty; Gitzendanner, Rob; Darcy, Eric C.; Armstrong, Michael; Wang, Chao-Yang (2022-09-01). "Next-Generation Aviation Li-Ion Battery Technologies—Enabling Electrified Aircraft". The Electrochemical Society Interface. 31 (3): 69. Bibcode:2022ECSIn..31c..69B. doi:10.1149/2.F10223IF. ISSN 1944-8783. S2CID 252507673.
  5. ^ "New Positions, Promotions, Honors And Elections, July 13, 2020". Aviation Week. Retrieved 2023-08-11.
  6. ^ Blocker, W.; Komar, D.; Bradley, M. (2003-07-20). "NGLT Systems Assessment of the Boeing FASST TSTO Airbreathing Vehicle Concept". AIAA Conference Paper. American Institute of Aeronautics and Astronautics. doi:10.2514/6.2003-5267. ISBN 978-1-62410-098-7.
  7. ^ Bradley, Marty; Bowcutt, Kevin; McComb, James; Bartolotta, Paul; McNelis, Nancy (2002-07-07). "Revolutionary Turbine Accelerator (RTA) Two-Stage-to-Orbit (TSTO) Vehicle Study". AIAA Conference Paper. American Institute of Aeronautics and Astronautics. doi:10.2514/6.2002-3902. ISBN 978-1-62410-115-1.
  8. ^ Bradley, Marty; Magee, Todd (1995-01-09). "Flow models for hypersonic nozzles and shock waves with chemical and vibrational nonequilibrium". AIAA Conference Paper. American Institute of Aeronautics and Astronautics. doi:10.2514/6.1995-624.
  9. ^ Haney, J; Bradley, M (1995-01-09). "Waverider nozzle integration issues". AIAA Conference Paper. American Institute of Aeronautics and Astronautics. doi:10.2514/6.1995-847.
  10. ^ Tirres, Carlos; Bradley, Marty; Morrison, Calvin (2002-06-24). "A Flow Quality Analysis for Future Hypersonic Vehicle Testing (Invited)". AIAA Conference Paper. American Institute of Aeronautics and Astronautics. doi:10.2514/6.2002-2706. ISBN 978-1-62410-112-0.
  11. ^ "The bridge to net-zero". Aerospace America. 2023-03-01. Retrieved 2023-08-10.
  12. ^ "NASA, Boeing Test Low-Drag Truss-Braced Wing Concept". Aviation Week. Retrieved 2023-08-11.
  13. ^ Warwick, Graham (2014-01-27). "Different Aspect: High-aspect-ratio, truss-braced wing promises marked fuel savings". Aviation Week & Space Technology. pp. 40–42.
  14. ^ Bradley, Marty K.; Droney, Christopher K. (2011-04-01). "Subsonic Ultra Green Aircraft Research". NASA Technical Report.
  15. ^ Bradley, Marty K.; Droney, Christopher K. (2012-05-01). "Subsonic Ultra Green Aircraft Research Phase II: N+4 Advanced Concept Development" (PDF). NASA Technical Report.
  16. ^ "Boeing Researches Alternative Propulsion And Fuel Options". Aviation Week. Retrieved 2023-08-11.
  17. ^ Norris, Guy (2014-01-27). "Hybrid Help: GE delves into company-wide electric experience as hybrid engine concept comes together". Aviation Week & Space Technology. pp. 42–43.
  18. ^ Dallara, Emily; Kusnitz, Joshua; Bradley, Marty (2013-09-17). "Parametric Life Cycle Assessment for the Design of Aircraft". SAE International Journal of Aerospace. 6 (2): 736–745. doi:10.4271/2013-01-2277. ISSN 1946-3901.
  19. ^ Viswanathan, Venkatasubramanian; Epstein, Alan H.; Chiang, Yet-Ming; Takeuchi, Esther; Bradley, Marty; Langford, John; Winter, Michael (2022-01-26). "The challenges and opportunities of battery-powered flight". Nature. 601 (7894): 519–525. Bibcode:2022Natur.601..519V. doi:10.1038/s41586-021-04139-1. ISSN 1476-4687. OSTI 1842014. PMID 35082419. S2CID 256821367.
  20. ^ "Batteries Have Potential For Aviation, If Needed Investment Is There". Aviation Week. Retrieved 2023-08-11.
  21. ^ "AIAA Announces Its Class of 2018 Fellows and Honorary Fellows". American Institute of Aeronautics and Astronautics (AIAA). Retrieved 2023-08-10.
  22. ^ "AIAA/IEEE Electric Aircraft Technologies Symposium (EATS) - IEEE Transportation Electrification Community". tec.ieee.org. Retrieved 2023-08-10.

External links[edit]

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