E-450

Winnebago Industries, Inc. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Standstill

Date : 2012-10-03
Personnel : B.L., S.R. & C.S.
Temperature (°F) : 63 Humidity (%) : 97
Wind Speed (mph) : 1.6 Wind Direction : NE
Barometric Pressure (in.Hg) : 30.06
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): 44.8

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 68.3 1 70.0
2 67.8 2 68.3
3 67.9 3 68.9
4 65.9 4 68.4
5 66.7 5 68.6
Average of two highest actual noise levels = 68.1 dB(A) Average of two highest actual noise levels = 69.5 dB(A)