TC 18 FD

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Exterior Noise Test

Accelerating from Constant Speed

Date : 1994-09-30
Personnel : B.L., B.R., & R.H.
Temperature (°F) : 68 Humidity (%) : 70
Wind Speed (mph) : 6 Wind Direction : 1
Barometric Pressure (in.Hg) : 29.95
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): 49.7

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 72.9 1 73.1
2 72.8 2 73.3
3 72.9 3 73.3
4 72.9 4 73.8
5 72.7 5 73.6
Average of two highest actual noise levels = 72.9 dB(A) Average of two highest actual noise levels = 73.7 dB(A)