E-450

Winnebago Industries, Inc. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 2012-10-03
Personnel : B.L., S.R. & C.S.
Temperature (°F) : 63 Humidity (%) : 97
Wind Speed (mph) : NE Wind Direction : 1.6
Barometric Pressure (in.Hg) : 39.8
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): 39.8

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 70.6 1 69.7
2 68.5 2 67.0
3 68.1 3 65.4
4 67.0 4 69.1
5 67.8 5 68.1
Average of two highest actual noise levels = 69.6 dB(A) Average of two highest actual noise levels = 69.4 dB(A)