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  • 1
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    Overview of Avionics and Electrical Ground Support Equipment (2011)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Presents an overview of the Crew Module Avionics and the associated Electrical Ground Support Equipment for the Pad Abort 1 flight test of the Orion Program. A limited selection of the technical challenges and solutions are highlighted.
    Keywords: Avionics and Aircraft Instrumentation
    Type: DFRC-E-DAA-TN2701 , 49th AIAA Aerospace Sciences Meeting: Orion Pad Abort 1 Flight Test; Jan 04, 2011 - Jan 07, 2011; Orlando, FL; United States
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Development of a Multi-Phase Mission Planning Tool for NASA X-57 Maxwell (2018)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The physical design and operation of electric aircraft like NASA Maxwell X-57 are significantly different than conventionally fueled aircraft. Operational optimization will require close coupling of aerodynamics, propulsion, and power. To address the uncertainty of electric aircraft operation, a system level Mission Planning Tool is developed to simulate all aircraft trajectory phases: taxi, motor run-up, takeoff, climb, cruise, and descent. The Mission Planning Tool captures performance parameters at each point of the trajectory including battery state of charge, the temperatures of components in the electrical system, and propulsion system thrust. This work describes the modeling of each mission phase, and compares the results of simulating a user-specified trajectory, and using a collocated optimal control approach to determine an optimal trajectory. The results show that optimization of the mission show a significant increase in the final battery state of charge over the user- specified simulation strategy. These results will inform the operation of the NASA Maxwell X-57 test flights that will take place this year.
    Keywords: Aircraft Design, Testing and Performance; Aircraft Communications and Navigation
    Type: GRC-E-DAA-TN56714 , AIAA Aviation Forum; Jun 23, 2018 - Jun 29, 2018; Atlanta, GA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    LEAPTech/HEIST Experiment Test and Evaluations Lessons Learned (2018)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: This presentation is designed to update and enhance NASA's ability to collect, preserve, disseminate, and communicate to decision makers for Distributed Electric Propulsion technologies. Acronyms: LEAPTech/HEIST (Leading Edge Asynchronous Propeller Technology/Hybrid-Electric Integrated Systems Testbed).
    Keywords: Aircraft Propulsion and Power
    Type: AFRC-E-DAA-TN57434 , AIAA Aviation Forum 2018; Jun 25, 2018 - Jun 29, 2018; Atlanta, GA; United States
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 4
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    NASA Electrified Aircraft Propulsion Efforts (2019)
    In:  CASI
    Details
    Publication Date: 2019-11-14
    Description: NASA's broad investments in Electrified Aircraft Propulsion (EAP) are reviewed in this paper. NASA investments are guided by an assessment of potential market impacts, technical key performance parameters, and technology readiness attained through a combination of studies, enabling fundamental research, and flight research. NASA has determined that the impact of EAP varies by market and NASA is considering three markets: national/international, on-demand mobility, and short haul regional air transport. Flight research is underway to demonstrate integrated solutions and inform standards and certification processes. This paper focuses on the vehicle related activities, however there are related NASA activities in air space management and vehicle autonomy activities as well as a breakthrough technology project called the Convergent Aeronautics Solutions Project. A key finding is that sufficient technical advances in key areas have been made which indicate EAP is a viable technology for aircraft. Significant progress has been made to reduce EAP adoption barriers and further work is needed to transition the technology to a commercial product and improve the technology so it is applicable to large transonic aircraft. This paper will review the activities of the Hybrid Gas Electric Subproject of the Advanced Air Transport Technology Project, the Revolutionary Vertical Lift Technology Project, and the X-57 Flight Demonstration Project, and discuss the potential EAP benefits for commercial and military applications.
    Keywords: Aircraft Propulsion and Power
    Type: GRC-E-DAA-TN72947 , Hybrid/Electric Aero-Propulsion Systems for Military Applications; Oct 07, 2019 - Oct 09, 2019; Trondheim; Norway
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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