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Rotorcraft
Noise Study Drives Washington Helicopter Route Change
The FAA is modifying helicopter routes in the Washington, D.C. area based on the results of an aviation noise study.
Military helicopter in flight over Jefferson Memorial in Washington D.C.
The FAA is modifying helicopter routes in the Washington D.C. area based on the results of an aviation noise study. (Photo: NPS/Victoria Stauffenberg via Wikimedia Commons)