Figure 1: Sources of Helicopter Noise During Flights
| Uploaded by | U.S. Government Accountability Office |
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| License | United States Government Work |
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| Date uploaded | 2021-01-11 |
| Tags | gao, governmentaccountabilityoffice, usgovernmentaccountabilityoffice, usgao, unitedstatesgovernmentaccountabilityoffice, government, congress, watchdog, oversight, governmentwatchdog, gao21200, aircraftnoise, faa, federalaviationadministration, nationalronaldreaganwashingtonnationalairport, helicopternoiseduringflights |
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