TB-2242

CHAMPION MOTOR COACH, INC. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 1996-04-18
Personnel : B.L., S.C., & R.H.
Temperature (°F) : 67 Humidity (%) : 58
Wind Speed (mph) : 5 Wind Direction : S
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 R.L.L.
Initial Sound Level Meter Calibration: false checked by R.L.L.
Exterior Ambient Noise Level dB(A): 39.0

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 79.1 1 84.2
2 79.3 2 82.7
3 78.6 3 82.4
4 78.3 4 83.2
5 78.6 5 82.8
Average of two highest actual noise levels = 79.2 dB(A) Average of two highest actual noise levels = 83.7 dB(A)