. Boston Logan International Airport environmental impact study. Logan International Airport; Airports; Environmental impact statements; Harbors; Oceanography; Pollution; Pollution; Transportation. EXHIBIT III-7 Perceived Noise Level for a Flyover At Landing Power for a 707 With Modified Nacelles FLYOVER NOISE AT APPROACH REFERENCE POINT PEAKPNL. PNdB 130r 120- 110 BASELINE NACELLE. 100 —13 TO 16 PNdB ATTENUATION 6-4-2 0 2 4 RELATIVE TIME, sec Approach Departure Source: NASASP-189, Paper 16, Nordstrom, D. C. and Miller D. S. , "Noise Predictions and Economic Effects of Boeing Nacelle Modi
. Boston Logan International Airport environmental impact study. Logan International Airport; Airports; Environmental impact statements; Harbors; Oceanography; Pollution; Pollution; Transportation. EXHIBIT III-7 Perceived Noise Level for a Flyover At Landing Power for a 707 With Modified Nacelles FLYOVER NOISE AT APPROACH REFERENCE POINT PEAKPNL. PNdB 130r 120- 110 BASELINE NACELLE. 100 —13 TO 16 PNdB ATTENUATION 6-4-2 0 2 4 RELATIVE TIME, sec Approach Departure Source: NASASP-189, Paper 16, Nordstrom, D. C. and Miller D. S. , "Noise Predictions and Economic Effects of Boeing Nacelle Modifications" 111-21. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Port Authority.
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Keywords: ., boo, bookcentury1900, booksubjectharbors, booksubjectoceanography
