MBC-II FUTURA

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Exterior Noise Test

Accelerating from Standstill

Date : 1992-12-21
Personnel : B.R., S.C., & R.H.
Temperature (°F) : 34 Humidity (%) : 17
Wind Speed (mph) : 2 Wind Direction : NNW
Barometric Pressure (in.Hg) : 30.32
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.R.
Initial Sound Level Meter Calibration: true checked by R.R.
Exterior Ambient Noise Level dB(A): 38.4

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 68.7 1 72.1
2 69.6 2 72.6
3 69.8 3 71.7
4 69.5 4 72.0
5 69.7 5 71.2
Average of two highest actual noise levels = 69.8 dB(A) Average of two highest actual noise levels = 72.4 dB(A)