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Noise-generating aircraft propeller. Aircraft noise is noise pollution produced by an aircraft or its components, whether on the ground while parked such as auxiliary power units, while taxiing, on run-up from propeller and jet exhaust, during takeoff, underneath and lateral to departure and arrival paths, over-flying while en route, or during landing.
An aviation biofuel (also known as bio-jet fuel [89], sustainable aviation fuel (SAF) or bio-aviation fuel (BAF) [90]) is a biofuel used to power aircraft. The International Air Transport Association (IATA) considers it a key element in reducing the environmental impact of aviation . [ 91 ]
The primary sources of jet noise for a high-speed air jet (meaning when the exhaust velocity exceeds about 100 m/s; 360 km/h; 225 mph) are "jet mixing noise" and, for supersonic flow, shock associated noise. Acoustic sources within the "jet pipe" also contribute to the noise, mainly at lower speeds, which include combustion noise, and sounds ...
Nearly two decades after the last flight of Anglo-French Concorde, a panel of United Nations aviation experts is meeting from Monday and will consider updating a decades-old supersonic noise ...
Canestrino also reported that noise levels are up from last year, with a monitor affixed near the top of the hospital averaging noise data of 62.6 decibels in May 2024, compared to 59.5 decibels ...
Aircraft noise can be reduced by using quieter jet engines. ... Noise pollution is a major problem in India. ...
In a blow to GE's (NYSE: GE) huge jet engine division, The National Transportation Safety Board issued two urgent safety recommendations to the Federal Aviation Administration (FAA) regarding two ...
In the US, the Concorde noise was measured at DFW and Dulles airports: [17] Based on the data given in Tables 11 and 12, it appears that the approach noise of the Concorde is somewhat higher than that for present day commercial aircraft. The takeoff noise is, for locations close the airport, considerably higher than present aircraft.