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Wednesday, December 5, 2007

Jet Aircraft Noise - Ages of Problem



Noise of jet aircraft is not a new issue. In Europe, we heared a news how certain airport ban Russian aircraft because they breach the allowed limit of sound measurement. Certain western jet engine manufacturers starting to design engine with less or emitting sound that comply with European standard.
In US an already noise-conscious, busy Santa Monica airport (SMO) just north of LAX is set to adopt a city council ordinance prohibiting category C and D aircraft (those aircraft with approach speeds of 121 knots or more, but less than 166 knots) from using its sole 4,973-by-150-foot runway in spite of a letter from the FAA that calls the move "flatly illegal." With a Dec. 5 meeting set for SMO representatives and the FAA, the issue may yet end in court. Category C and D aircraft (Gulfstream IV, Challenger and Citation X aircraft (Piture Above), and the like) account for about 8,500 operations per year at SMO and half of its jet traffic. Violation of the ordinance, which the council says is proposed for safety concerns, would incur a $1,000 fine. The FAA has stated it will use "all available means" to prevent implementation of the ordinance. Proponents say the FAA's own guidelines call for runway safety areas of 1,000 feet at either end of runways accommodating category C and D aircraft. Santa Monica presently has none ... but it does have homes within 300 feet of the runway's ends.
There is no doubt there is noise problem moreover if you stay near a Military airbase.There is a report in newspaper that I read on how public who's home near an airbase complained about the noise when the Air Force conducting an exercise be it at day or night. But one thing that I'm notice is old jet aircraft like MD DC-10 or Boeing 727 or military jets contribute most of the noise pollution. New aircraft like Airbus 320 is most likely emitted less noise pollution.

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