AERO ELITE NAVISTAR

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2015-11-23
Personnel : S.R.,E.D. & M.R.
Temperature (°F) : 31 Humidity (%) : 54
Wind Speed (mph) : 8 Wind Direction : NNW
Barometric Pressure (in.Hg) : 30.15
Verify that microphone height is 4 feet, wind speed is less than 12 mpg and ambient temperature is between 30 F and 90 F: true checked by S.R.
Initial Sound Level Meter Calibration: true checked by S.R.
Exterior Ambient Noise Level dB(A): 43.9

Accelerating from Constant Speed
Curb (Right) Side
Accelerating from Constant Speed
Street (Left) Side
Run # Measured Noise Level dB(A) Run # Measured Noise Level dB(A)
1 72.6 1 73.2
2 70.4 2 71.3
3 72.0 3 73.2
4 71.8 4 72.6
5 71.4 5 72.8
Average of two highest actual noise levels = 72.3 dB(A) Average of two highest actual noise levels = 73.2 dB(A)