ORION II

BUS INDUSTRIES OF AMERICA, INC. Pdf Download PDF Report

Exterior Noise Test

Stationary

Date : 1994-06-06
Personnel : B.L.
Temperature (°F) : 75 Humidity (%) : 61
Wind Speed (mph) : 8 Wind Direction : WSW
Barometric Pressure (in.Hg) : 29.9
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): 47.3

Accessories and Air Conditioning ON
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 584 54.3 59.1
High Idle 585 54.3 59.1
Wide Open Throttle 3215 74.8 78.1

Accessories and Air Conditioning OFF
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 604 51.6 54.8
High Idle 686 52.5 56.2
Wide Open Throttle 3221 72.1 76.8