AEROTECH 240

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Exterior Noise Test

Accelerating from Standstill

Date : 1998-06-03
Personnel : B.L. & R.H.
Temperature (°F) : 52 Humidity (%) : 59
Wind Speed (mph) : 6 Wind Direction : WNW
Barometric Pressure (in.Hg) : 29.89
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: true checked by R.L.L.
Exterior Ambient Noise Level dB(A): 48.5

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 73.5 1 74.4
2 74.5 2 74.8
3 74.1 3 74.7
4 74.9 4 74.6
5 75.0 5 74.1
Average of two highest actual noise levels = 75.0 dB(A) Average of two highest actual noise levels = 74.8 dB(A)