AERO ELITE NAVISTAR

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Exterior Noise Test

Accelerating from Standstill

Date : 2015-11-23
Personnel : S.R.,E.D. & M.R.
Temperature (°F) : 32 Humidity (%) : 49
Wind Speed (mph) : 8 Wind Direction : NW
Barometric Pressure (in.Hg) : 30.16
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): 46.0

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 70.2 1 72.5
2 71.2 2 72.4
3 70.1 3 72.3
4 70.3 4 72.1
5 70.9 5 72.3
Average of two highest actual noise levels = 71.1 dB(A) Average of two highest actual noise levels = 72.5 dB(A)