Publications

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2020

Acree, C.W., "Vertical Climb Testing of a Full-Scale Proprotor on the Tiltrotor Test Rig," Presented at the VFS Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA, January 21–23, 2020. Download

Argus, F.J., Ament, G.A, Koning, W.J.F., "The Influence of Laminar-Turbulent Transition on Rotor Performance at Low Reynolds Numbers," Presented at the VFS Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA, January 21– 23, 2020. Download

Brown, G.V., Trudell, J.J., Kohlman, L.W., Duffy, K.P., Koci,D.F. "Status of Analysis and Manufacturability of Superconducting Wires With Low AC Losses," NASA/TM–20205005815, Download

Conley, S., Russell, C., "Mechanical Design of the Multirotor Test Bed," Presented at the VFS Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA, January 21–23, 2020 Download

Conley, S., Russell, C., Kallstrom, K., Koning, W., Romander, E., "Comparing RotCFD Predictions of the Multirotor Test Bed with Experimental Results" Presented at the Vertical Flight Society's 76th Annual Forum & Technology Display, Virtual, October 6–8, 2020, Download

Cummings, H., Dominguez, M., Solis, E., Silva, C., Bowman, B., Burek, S., "XV-15 Tilt Rotor Research Aircraft Photogrammetry and Metrology Measurement " Presented at the Vertical Flight Society's 76th Annual Forum & Technology Display, Virtual, October 6–8, 2020, Download

Deluane, J., Izraelevitz, J., Sklyanskiy, E., Schutte, A., Fraeman, A., Scott, V., Leake, C., Ballesterost, E.,Aaron, K.,Young, L., Johnson, W., Withrow-Maser, S., Cummings, H., Bhagwat, R., Veismann, M., Wei, S., Lee. R., Pabon Madrid, L., Morteza, G., Burdick, J., Rapin, W., "Motivations and Preliminary Design for Mid-Air Deployment of a Science Rotorcraft on Mars " Presented at the AIAA Ascend Conference, Virtual, November 16–18, 2020, Download

Dromiack, H., "March of the Interns," Vertiflight Magazine January/February 2020 Download

Harris, F.D., "Model Rotor Hover Performance at Low Reynolds Number" NASA/CR–20205001147 Download

Jacklin, S., Swanson, S., Blaas, A., Richter, P., Teves, D., Nielsl, G., Kube, R., Gmelin, B., Key, D., "Investigation of a Helicopter Individual Blade Control (IBC) System in Two Full-Scale Wind Tunnel Tests: Volume I " NASA/TP–20205003457 Vol I, Download

Johnson, W., "Mars Science Helicopter Mid-Year Review," Presented at NASA Jet Propulsion Laboratory, Pasadena, CA, March,2020, Download

Johnson, W., "A Quiet Helicopter for Air Taxi Operations" Presented at the VFS Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA, January 21–23, 2020, Download

Johnson, W., Withrow-Maser, S., Young, L., Malpica, C., Koning, W.J.F., Kuang, W., Fehler, M., Tuano, A., Chan, A., Datta, A., Chi, C., Lumba, R., Escobar, D., Balaram, J., Tzanetos, T., Grip, H., "Mars Science Helicopter Conceptual Design" NASA/TM–2020–220485 Download

Kottapalli, S., "Loads Correlation of a Full-Scale Proprotor on the Tiltrotor Test Rig" Presented at the VFS Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA, January 21–23, 2020 Download

Koning, W.J.F., Romander, E.A., Johnson, W., "Optimization of Low Reynolds Number Airfoils for Martian Rotor Applications Using an Evolutionary Algorithm" Presented at the AIAA Science and Technology Forum and Exposition (AIAA SciTech), Orlando, Florida, USA, January 6–10, 2020 Download

Malpica, C., Withrow-Maser, S., "Handling Qualities Analysis of Blade Pitch and Rotor Speed Controlled eVTOL Quadrotor Concepts for Urban Air Mobility" Presented at the VFS International Powered Lift Conference 2020, San Jose, CA, January 21–23, 2020 Download

Narbuntas, T., Conley, S., Kallstrom, K., Abrego, A.M., "Wind Tunnel Performance Test of a Ducted Fan System" NASA/TM–2020–220484 Download

Perez Perez, B.N., "Forward Flight Rotor Performance at Martian Atmospheric Densities and Sensitivity to Low Reynolds Numbers," Presented at the VFS Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA, January 21–23, 2020, Download

Russell, C., Conley, S. "The Multirotor Test Bed – A New NASA Test Capability for Advanced VTOL Rotorcraft Configurations" Presented at the Vertical Flight Society's 76th Annual Forum & Technology Display, Virtual, October 6–8, 2020, Download

Schuet, S., Malpica, C., Lomaerts, T., Kaneshige, J., Withrow–Maser, S., Hardyk, G., Aires, J., "A Modeling Approach for Handling Qualities and Controls Safety Analysis of Electric Air Taxi Vehicles," Presented at the virtual AIAA AVIATION Forum, Modeling and Simulation Technologies Conference, 15–19 June 2020 Download

Sheltz, K., Schatzman, N., "Acoustic Testing of the Bell 699 Rotor on the Tiltrotor Test Rig (TTR) in the National Full-Scale Aerodynamics Complex 40- by 80- Foot Wind Tunnel in Conversion and Airplane Configuration," Presented at the VFS Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA, January 21–23, 2020 Download

Wadcock, A., Porter, B., Wagner, L., Dromiak, H., "Effect of Atmospheric Wind and Upstream Buildings on the Flow Quality in the Test Section of the 80– by 120–Foot Wind Tunnel," NASA/CR–20205000668, Download

Withrow-Maser, S., Koning W., Kuang W., Johnson, W., "Recent Efforts Enabling Future Mars Rotorcraft Missions," Presented at the VFS Aeromechanics for Advanced Vertical Flight Technical Meeting, San Jose, CA, January 21–23, 2020 Download

Withrow–Maser, S., Malpica, C., Nagami, K., "Multirotor Configuration Trades Informed by Handling Qualities for Urban Air Mobility Application " Presented at the Vertical Flight Society's 76th Annual Forum & Technology Display, Virtual, October 6–8, 2020, Download

Withrow–Maser, S., Johnson W., Young L., Koning, W., Kuang, W., Malpica C., Balaram J., Tzanetos, T., "Mars Science Helicopter: Conceptual Design of the Next Generation of Mars Rotorcraft" Presented at the AIAA Ascend Conference, Virtual, November 16–18, 2020. Download

Withrow–Maser, S., Johnson W., Young L., Cummings, H.,Chan, A., Balaram, J., Bapst, J., "An Advanced Mars Helicopter Design," Presented at the AIAA Ascend Conference, Virtual, November 16–18, 2020 Download

Young, L., "Accessibility Design and Operational Considerations in the Development of Urban Aerial Mobility Vehicles and Networks," Presented at the VFS International Power Lift Conference (IPLC) 2020, San Jose, California, January 21–23, 2020 Download

Young, L., Deluane J., Johnson W., Withrow–Maser, S., Cummings, H., Sklyanskiy E., Izraelevitz J., Schutte, A., Fraeman, A., Bhagwat, R., T."Design Considerations for a Mars Highland Helicopter," Presented at the AIAA Ascend Conference, Virtual, November 16–18, 2020, Download