An empirical correlation of the noise field of aircraft propellers with operating conditions and spatial position is described. The results are useful for estimating the propeller‐noise levels over the surface of an aircraft fuselage or other surface in the near‐field of a rotating propeller at points separated from the propeller axis by a distance greater than the propeller radius. Data for this study came principally from three sources: (a) NACA Reports, (b) the work of Beraneket al.published circa 1947, and (c) recent measurements by Bolt Beranek and Newman Inc. The parameters considered include the power delivered to the propeller, the propeller diameter and nmnber of blades, the propeller tip Mach numbers (both rotational and helical), and the distance from the propeller tips to the measurement point. The results of the study are presented in a number of charts giving the over‐all level, spatial distribution, and frequency spectrum of the propeller noise. The use of the charts is described, and a comparisou of predicted and measured levels is made.