ORION II

BUS INDUSTRIES OF AMERICA, INC. Pdf Download PDF Report

Exterior Noise Test

Stationary

Date : 1992-03-31
Personnel : BL, RH and BR
Temperature (°F) : 42 Humidity (%) : 46
Wind Speed (mph) : 7 Wind Direction : nw
Barometric Pressure (in.Hg) : 29.92
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 BL
Initial Sound Level Meter Calibration: true checked by BL
Exterior Ambient Noise Level dB(A): 39.4

Accessories and Air Conditioning ON
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 654 56.9 59.1
High Idle 804 59.5 63.2
Wide Open Throttle 3258 74.6 80.8

Accessories and Air Conditioning OFF
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 702 55.0 59.4
High Idle 842 57.3 63.7
Wide Open Throttle 3264 74.1 79.7