Why is the A330 so noisy?

Hydraulic pump The purpose of the system is to ensure that minimum pressure is maintained across the hydraulic systems of the aircraft. This system produces the 'barking dog' noise that is associated with the Airbus series, which also sometimes manifests itself as a high-pitched whining noise.



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The source of certain Airbus planes' characteristic barking noise is a component known as the Power Transfer Unit (PTU). This is an element of the aircraft's hydraulic systems, and it facilitates the switching of power from one system to another in the event of a failure.

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Another noise peculiar to Airbus models is a shrill, prolonged whine heard at the gate prior to departure and again after landing. This is an electric hydraulic pump used to open and close the cargo doors.

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The Airbus A321 study suggests that noise levels are higher in the rear of the cabin, near and behind the engines and propellers, and near windows. When you have a choice, moving to other locations in the cabin may reduce your noise levels.

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The Airbus A380 is the largest commercial passenger aircraft in the world, as well as the quietest widebody airliner currently flying.

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According to a June 2022 study on in-cabin noise in widebody aircraft, The Airbus A350 is slightly noisier than the Boeing 787 Dreamliner , although not by much at all. The aircraft incorporates advanced noise reduction technologies and sound-insulating materials to minimize engine noise and vibrations.

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The website tinitustalk.com pulled research figures together for several widebody aircraft – with the A380 coming in lowest at 69.5 dB. The Boeing 787, for comparison, was quoted as 72.7 dB and the Airbus A350 at 74.9 dB.

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Cabin comfort and The A330's modern cabin enables the installation of Airbus-standard wide seats that bring a high level of comfort and relaxation to long-haul flights – even in economy.

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Is Airbus A330 a good plane? Looking at the respective operational ranges of these aircraft, the A330 competes very strongly with the 777. Indeed, the A330-200 outranks any first-generation 777 variant, with the A330-300 also beating the Boeing 777-300.

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The Airbus A330-200 is the largest aircraft we offer. It is a modern, efficient and reliable aircraft and can fly for more than 14 hours non-stop, making it ideal for ultra-long-range operations.

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However, because of the logarithmic scale used in reporting decibels, this means the Boeing is about 50% "louder" than the Embraer aircraft. Similarly, the 737 is 0.9 decibels louder than the A320, or about 10% "louder".

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Yes, they have. A lot quieter. Over the past 50 years individual aircraft have reduced their noise impact by 75%. Indeed, compared with the first jet aircraft, noise from modern aircraft has been reduced by 97% on departure - a 15 decibel reduction - and 94% on arrival - a 12 decibel reduction (1).

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The A350 is on average up to 6 dB quieter on departure than the A330 and 777, and up to 9 dB quieter than the A340.

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Airbus A380: The Airbus A380, known as the largest commercial airplane, has never experienced a fatal crash. While it has had a few accidents related to engine problems, these incidents were effectively controlled, and the A380 is considered to be a reliable and safe aircraft.

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Jet airliners, on the inside, are loudest in the last few rows at the rear. Outside, right at the engine exhausts, but you're in serious danger from the engine if you're anywhere near that. Most of the noise goes backwards away from the plane.

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In my own unscientific research, dozens of decibel readings I took on recent flights show where you sit makes a difference in how much noise you hear. Sitting next to or behind the engines makes for a noisier ride. Being near an exit door can up the decibels, too.

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Departures tend to be louder than arrivals since the pilot is using more power to the engine to achieve lift.

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