240-AEROTECH

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Exterior Noise Test

Accelerating from Constant Speed

Date : 1994-05-31
Personnel : B.L., B.S. & N.E.
Temperature (°F) : 76 Humidity (%) : 55
Wind Speed (mph) : 7 Wind Direction : NW
Barometric Pressure (in.Hg) : 30.11
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): 42.9

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 73.8 1 74.4
2 73.3 2 73.5
3 74.0 3 72.9
4 73.5 4 73.2
5 74.4 5 73.3
Average of two highest actual noise levels = 74.2 dB(A) Average of two highest actual noise levels = 74.0 dB(A)