Investigation of Aircrew Noise Exposure Onboard the NRC Dassault Falcon Aircraft Through Flight Testing
The NRC Dassault Falcon 20 is a small business jet operated by the NRC Flight Research Laboratory as a customizable research and experimental facility. As such, the NRC Falcon flies in a variety of cabin configurations and flight conditions including parabolas for microgravity. In-flight cabin noise measurements were performed on the NRC Falcon throughout a number of representative flight conditions. The data was analyzed in 1/3rd octave bands in accordance with ISO 5129 and evaluated in accordance with the Canadian Aviation Occupational Health and Safety Regulations. It was determined that all aircrew equipped with properly fitted hearing protection will not be overexposed to noise while onboard the NRC Falcon. The most severe noise exposure was experienced at the rear of the cabin near the engines during level flight while accelerating to 300 KIAS. While not equipped with properly fitted hearing protection, an occupant will reach the maximum allowed noise dose in a cumulated 9 minutes and 36 seconds under these conditions.
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