Charles Hall Soltmann, L. M., & Hall, C. E., Jr. (2017). Power-Required Flight Testing of Unmanned Aerial Systems Using Non-Steady-State Flight. JOURNAL OF AIRCRAFT, 54(3), 1162–1171. https://doi.org/10.2514/1.c033982 Heinzen, S. B., Hall, C. E., Jr., & Gopalarathnam, A. (2015). Development and Testing of a Passive Variable-Pitch Propeller. Journal of Aircraft, 52(3), 748–763. https://doi.org/10.2514/1.c032595 Southwell, J. T., Hall, C. E., & Burke, D. A. (2013). Correlation of population density to designated urban areas. Journal of Aerospace Information Systems, 10(1), 40–46. Burke, D. A., Hall, C. E., Jr., & Cook, S. P. (2011). System-Level Airworthiness Tool. JOURNAL OF AIRCRAFT, Vol. 48, pp. 777–785. https://doi.org/10.2514/1.c031022 Cox, C., Gopalarathnam, A., & Hall, C. E., Jr. (2010). Flight Test of Stable Automated Cruise Flap for an Adaptive Wing Aircraft. Journal of Aircraft, 47(4), 1178–1188. https://doi.org/10.2514/1.46789 Cox, C., Gopalarathnam, A., & Hall, C. E., Jr. (2009). Development of Stable Automated Cruise Flap for an Aircraft with Adaptive Wing. Journal of Aircraft, 46(1), 301–311. https://doi.org/10.2514/1.38684