Originally devised by the Wilson Committee on Noise in Britain (1963), the Noise and Number Index is an attempt to measure the subjective noisiness of aircraft. It uses the PNdB as a basis and ...
Originally devised by the Wilson Committee on Noise in Britain (1963), the Noise and Number Index is an attempt to measure the subjective noisiness of aircraft. It uses the PNdB as a basis and ...
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