SPIRIT

GILLIG CORPORATION

Exterior Noise Test

Accelerating from Constant Speed

Date	:	1990-12-14
Personnel	:	S.M. and B.L.
Temperature (°F)	:	30	Humidity (%)	:	12
Wind Speed (mph)	:	2	Wind Direction	:	nw
Barometric Pressure (in.Hg)	:	30.24
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 SM
Initial Sound Level Meter Calibration: false checked by SM
Exterior Ambient Noise Level dB(A): 42.5

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	71.9	1	72.2
2	72.0	2	72.3
3	73.2	3	72.4
4	71.7	4	72.7
5		5
Average of two highest actual noise levels = 72.6 dB(A)		Average of two highest actual noise levels = 72.6 dB(A)

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Replacement & Repair

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Summary
Data

Performance

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Noise

Glossary
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