Paul Richard Hill (1909–1990) was a mid–twentieth-century American aerodynamicist.Archives of American Aerospace Exploration, Paul R. Hill Special Collection, MS2010-068; http://spec.lib.vt.edu/aerosp/aerospgd/hill.htm He was a leading research and development engineer and manager for NASA (National Aeronautics and Space Administration) and its predecessor, NACA (the National Advisory Council for Aeronautics) between 1939 and 1970, retiring as Associate Chief, Applied Materials and Physics Division at the NASA Langley Research Center.Hansen, J. R., 1986, Engineer in Charge, NASA, p417, https://history.nasa.gov/SP-4305/ He is arguably most widely known today as the author of Unconventional Flying Objects: a Scientific Analysis.Hill, P. R., 1995, Unconventional Flying Objects: a Scientific Analysis, Hampton Roads Publishing Company Inc., Charlottesville, VA.
