Aircraft noise pollution
Noise generated by powered aircraft / From Wikipedia, the free encyclopedia
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Aircraft noise pollution refers to noise produced by aircraft in flight that has been associated with several negative stress-mediated health effects, from sleep disorders to cardiovascular disorders.[1][2][3] Governments have enacted extensive controls that apply to aircraft designers, manufacturers, and operators, resulting in improved procedures and cuts in pollution.
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Sound production is divided into three categories:
- Mechanical noise—rotation of the engine parts, most noticeable when fan blades reach supersonic speeds.
- Aerodynamic noise—from the airflow around the surfaces of the aircraft, especially when flying low at high speeds.
- Noise from aircraft systems—cockpit, cabin pressurization, conditioning systems, and Auxiliary Power units.