RENAISSANCE

MOTOR COACH INDUSTRIES Pdf Download PDF Report

Exterior Noise Test

Stationary

Date : 2000-04-24
Personnel : S.C. & E.D.
Temperature (°F) : 56 Humidity (%) : 54
Wind Speed (mph) : Calm Wind Direction : Calm
Barometric Pressure (in.Hg) : 29.91
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 B.L.
Initial Sound Level Meter Calibration: true checked by B.L.
Exterior Ambient Noise Level dB(A): 53.3

Accessories and Air Conditioning ON
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 700 67.7 69.1
High Idle 950 70.0 70.7
Wide Open Throttle 2200 77.9 80.6

Accessories and Air Conditioning OFF
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 705 64.8 66.4
High Idle 950 67.8 68.3
Wide Open Throttle 2214 78.4 79.5