RE 185D

COLLINS

Exterior Noise Test

Stationary

Date : 1994-10-05
Personnel : R.L., B.R., & R.H.
Temperature (°F) : 48 Humidity (%) : 65
Wind Speed (mph) : 7 Wind Direction : NW
Barometric Pressure (in.Hg) : 30.02
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.
Initial Sound Level Meter Calibration: true checked by R.L.
Exterior Ambient Noise Level dB(A): 39.8

Accessories and Air Conditioning ON
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 813 61.7 62.5
High Idle 1201 65.6 65.3
Wide Open Throttle 2872 73.4 73.4

Accessories and Air Conditioning OFF
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 851 60.1 60.6
High Idle 1236 62.9 63.8
Wide Open Throttle 2882 74.4 72.9