Browse Standards AIR6501
Current ISSUED 2020-02-20

Method for Modeling Line-of-Sight Blockage of Aircraft Noise AIR6501

This document describes methods for calculating the attenuation of sound due to line-of-sight blockage or shielding from non-level terrain. This method applies to sound propagating from an airplane to locations on the ground during ground roll, climbout after liftoff, and landing operations.
AIR1845 and AIR5662 provides guidance for modeling aircraft noise at airports with flat terrain. In reality, many airports are surrounded by non-level terrain that may result in attenuation (or shielding) of sound at some receptors. This noise blockage can be accounted for with the line-of-sight blockage calculation, based on the difference in propagation path length between the direct path and propagation path over the top of terrain feature. The purpose of this aircraft information report is to provide a method that accounts for the attenuation due to line-of-sight blockage of aircraft noise by terrain features.
AIR6501
2020-02-20
Latest
Issued

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 10% off list price.
Login to see discount.
Special Offer: AeroPaks offers a customized subscription plan that is cost-effective and allows you to choose the number of downloads and Aerospace and Aerospace Material documents you need. Find more information here.
We also recommend:
TECHNICAL PAPER

Predicting Turbulent Decorrelation in Acoustic Phased Array in a Turbulent Medium

2014-36-0765

View Details

TECHNICAL PAPER

Interior Noise Control of the Saab 340 Aircraft

891080

View Details

TECHNICAL PAPER

A New Ride Quality Meter

850981

View Details

Get Involved

Want to participate in updating this standard?

X