The C-9A is a McDonnell Douglas DC-9 series 30 commercial transport modified to perform aeromedical evacuation missions. This report provides measured data defining the bioacoustic environments at flight crew/passenger locations inside this aircraft during normal flight operations. Data are reported for 56 locations in a wide variety of physical and psychoacoustic measures: overall and band sound pressure levels, C-weighted and A-weighted sound levels, preferred speech interference level, perceived noise level, and limiting times for total daily exposure of personnel with and without standard Air Force ear protectors.
USAF Bioenvironmental Noise Data Handbook. Volume 149. C-9A In-Flight Crew/Passenger Noise
1982
28 pages
Report
Keine Angabe
Englisch
Aircraft , Noise Pollution & Control , Handbooks , Noise(Sound) , Commercial aircraft , Transport aircraft , Bioacoustics , Aircraft engine noise , Flight crews , Inflight , Psychoacoustics , Sound pressure , Level(Quantity) , Speech , Interference , Measurement , Exposure(Physiology) , Ear protectors , Turbofan engines , Position(Location) , Noise pollution , Tables(Data) , Bioenvironmental noise , C-9A aircraft