ALLSTAR 25

STARCRAFT BUS Pdf Download PDF Report

Exterior Noise Test

Accelerating from Standstill

Date : 2006-02-02
Personnel : B.S., S.C. and T.S.
Temperature (°F) : 41 Humidity (%) : 85
Wind Speed (mph) : 5 Wind Direction : sw
Barometric Pressure (in.Hg) : 29.91
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.C.
Initial Sound Level Meter Calibration: true checked by S.C.
Exterior Ambient Noise Level dB(A): 53.7

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 72.4 1 71.3
2 72.9 2 71.4
3 72.1 3 71.0
4 72.5 4 71.3
5 72.4 5 71.2
Average of two highest actual noise levels = 72.7 dB(A) Average of two highest actual noise levels = 71.4 dB(A)