D45 Viking

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Exterior Noise Test

Accelerating from Standstill

Date : 1999-03-17
Personnel : B.L. and R.H.
Temperature (°F) : 60 Humidity (%) : 38
Wind Speed (mph) : 9 Wind Direction : W
Barometric Pressure (in.Hg) : 29.85
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): 41.3

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 77.0 1 78.4
2 77.1 2 79.0
3 76.9 3 78.6
4 76.5 4 78.4
5 77.1 5 79.0
Average of two highest actual noise levels = 77.1 dB(A) Average of two highest actual noise levels = 79.0 dB(A)