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Rotorcraft Noise Model (RNM), Version 7
A NASA software catalog entry available for reuse or request.
About this technology
Overview
The RNM simulation model calculates community noise, computing time histories of noise for arbitrary vehicle flight operations. The technology accommodates multiple noise sources (e.g., rotors and engines), each represented by a sphere of spectral data at a reference distance. Propagation to the ground accounts for spherical spreading, atmospheric absorption, ground impedance effects, and limited weather effects.
Release notes
NOTE: RNM is legacy code and does not come with any technical support