Publications
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2009
Acree, C.W., "JVX Proprotor Performance Calculations and Comparisons with Hover and Airplane-Mode Test Data", NASA TM 2009 - 215380 Download
Blanken, C., Decker, W., Malpica, C., Berger, T., Tucker, G., Lusardi, J., Ivler, C., Tischler, M., Hofinfer, M., "An Investigation of Rotorcraft Stability-Phase Margin Requirements in Hover". Presented at the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27 - 29, 2009. Download
Bousman, W. G. and Norman, T.R., 2009. "Aeromechanics in A Status of NASA Rotorcraft Research" NASA/TP–2009-215369, (G. K. Yamauchi and L. A. Young, eds.), September, Chapter 2, pp. 11–79. Download
Datta, A., Johnson, W., "Three-dimensional Finite Element Formulation and Scalable Domain Decomposition for High Fidelity Rotor Dynamic Analysis". Presented at the American Helicopter Society Annual Forum 65, Grapevine, Texas, May 27-29, 2009. Download
Bousman, W.,UH-60 Airloads Tutorial. Download
Floros, M., Johnson, W., "Performance Analysis of the Slowed-Rotor Compound Helicopter Configuration", Journal of American Helicopter Society 2009 Download
Janakiram, R., Sim, B., Kitaplioglu, C., Straub, F., "Blade-Vortex Interaction Noise Characteristics of a Full-Scale Active Flap Rotor". Presented at the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27-29, 2009. Download
Johnson, W., "NDARC NASA Design and Analysis of Rotorcraft", NASA/TP–2009-215402 Download
Johnson, W., "Influence of Lift Offset on Rotorcraft Performance", NASA/TP–2009-215404 Download
Johnson, W., Sinsay, J., "Rotorcraft Conceptual Design Environment", "Rotorcraft Conceptual Design Environment" Presented at the 2nd International Forum on Rotorcraft Multidisciplinary Technology ,Korea and 3rd International Basic Research Conference on Rotorcraft Technology, China. Oct 2009 Download
Kottapalli, S., Straub, F., "Correlation of Smart Active Flap Rotor Loads", American Helicopter Society 65th Annual Forum and Technology Display, May 27-29, 2009 Download
Lim, J., McAlister, K., Johnson, W., "Hover Performance Correlation for Full-Scale and Model-Scale Coaxial Rotors", Journal of American Helicopter Society 2009 Download
Norman, T. R., Theodore, C., Shinoda, P. M., Fuerst, D., Arnold, T. P., Makinen, S., Lorber, P., and O'Neill, J., Full-Scale Wind Tunnel Test of a UH-60 Individual Blade Control System for Performance Improvement and Vibration, Loads, and Noise Control. American Helicopter Society 65th Annual Forum, Grapevine, TX, May 2009. Download
Sim, B., JanakiRam, R., Barbely, N., Solis, E., "Reduced In-Plane, Low Frequency Noise of an Active Flap Rotor". Presented at the American Helicopter Society 65th Annual Forum, Grapevine, Texas, May 27-29, 2009. Download
Straub, F., Vaidyanathan, A., Birchette, T., Lau, B., "SMART Rotor Development and Wind-Tunnel Test", Presented at the 35th European Rotorcraft Forum, Hamburg, Germany, Sept. 22-25, 2009. Download
Yeo, H., Johnson, W., "Performance and Design Investigation of Heavy Lift Tilt-Rotor with Aerodynamic Interference Effects", JOURNAL OF AIRCRAFT Vol. 46, No. 4, July–August 2009 Download
Yamauchi, G., Young, L., "A Status of NASA Rotorcraft Research" NASA/TP–2009-215369 Download