A-Weighted Sound Levels in Cockpits of Fixed- and Rotary-Wing Aircraft
A-Weighted Sound Levels in Cockpits of Fixed- and Rotary-Wing Aircraft
- Neue Suche nach: D. C. Gasaway
- Neue Suche nach: D. C. Gasaway
Noise measurements obtained within the cockpits of 339 fixed- and rotary-wing aircraft during normal cruise are reported. The sample includes 271 fixed-wing and 68 rotary-wing aircraft that are grouped according to type and number of power plants. Mean A-weighted levels ranged from 92 to 105 dB for fixed-wing vehicles and from 98 to 106 dB for helicopters. Means and standard deviations are reported by octave-bands, all-pass (flat), A-levels, and preferred speech interference levels (PSIL, average of 500, 1000 and 2000 Hz). Also, at-the-ear A-levels are reported for generalized amounts of attenuation provided by headsets commonly worn in aircraft. (Author)
Dokumentinformationen
A-Weighted Sound Levels in Cockpits of Fixed- and Rotary-Wing Aircraft
1975
28 pages
Report
Keine Angabe
Englisch
Human Factors Engineering , Aircraft , Aircraft noise , Hearing , Conservation , Flight crews , Pilots , Background noise , Intensity , Cockpits , Military aircraft , Rotary wing aircraft , Voice communications , Interference , Engine noise , Level(Quantity) , Acoustic measurement , Fatigue(Physiology) , Deafness , Risk , Losses , Headgear , Flight helmets , Aviation medicine , Helicopters , Fixed wing aircraft
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