SPIRIT

GILLIG CORPORATION

Exterior Noise Test

Stationary

Date : 1991-01-04
Personnel : SM and BL
Temperature (°F) : 31 Humidity (%) : 55
Wind Speed (mph) : 7 Wind Direction : nw
Barometric Pressure (in.Hg) : 28.5
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: true checked by SM
Exterior Ambient Noise Level dB(A): 52.0

Accessories and Air Conditioning ON
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 607 56.0 57.2
High Idle 1280 615.0 62.9
Wide Open Throttle 2783 71.3 71.3

Accessories and Air Conditioning OFF
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 655 56.4 57.3
High Idle 1298 60.6 63.2
Wide Open Throttle 2784 71.3 71.3