Wall pressure fluctuations under turbulent boundary layers at subsonic and supersonic speeds this report is one in the series 448 - 469 inclusive, presenting papers, with discussions, given at the AGARD specialists' meeting on "The Mechanism of Noise Generation in Turbulent Flow" at the Training Center for Experimental Aerodynamics, Rhode-Saint-Genèse, Belgium, 1-5 April 1963... - Lilley, G. M. (Advisory Group for Aeronautical Research and Development, 1963)