Which aircraft has the quietest cabin?

1 Airbus A380 The Airbus A380 is the largest commercial passenger aircraft in the world, as well as the quietest widebody airliner currently flying. The A380's double-deck design and advanced noise-cancellation technology make it one of the quietest airliners in the skies.



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Haven't flown those on BA, but the A350 is much quieter than the B777 and would be my choice for that reason alone. You're also likely to have a newer cabin, unless BA refurbished the 777s. Our flight between Denver and Heathrow is on an A350.

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For most commercial airplanes, the seats closest to the front of the plane are the quietest. And although it's not always possible to get a front row seat, anything in front of the wing is preferable to seating behind the wing. The loudest row is just behind the wing where the engines are located.

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Airbus claims the A350 is five decibels quieter than competing aircraft [the Boeing 787], and up to nine decibels quieter towards the front of the cabin. This means four times less noise. This, of course, is without Airbus actually releasing their data.

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To combat the sound of jet-blast from the rear of the engine, Boeing, General Electric, and NASA developed serrated edges called chevrons for the back of the nacelle and the engine exhaust nozzle. The chevrons reduce jet blast noise by controlling the way the air mixes after passing through and around the engine.

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While both aircraft have much quieter cabins than their competitors, the A350 definitely feels a lot quieter than the 787, no matter which part of the plane you're sitting in. The A350 is in fact the quietest twin-engined aircraft in the skies. The only plane quieter is it's double-deckered older brother, the A380.

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It's the PTU that makes the barking noise. It transfers hydraulic pressure from one of the systems to the other when there is a measurable pressure difference, 500 psi. between the two. When the pressure drops, the PTU kicks in.

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The Boeing 777X is a larger aircraft For twins, Boeing will dominate in terms of capacity. The larger 777-9 offers a typical two-class capacity of 426 seats; this compares with 369 for the A350-1000. The 777-8 will be in a similar league as the A350-1000, with a capacity of around 390.

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If you're referring to interior noise, they are both roughly the same. The 737 has an interior sound level of 69.6 dB while the A320 has an interior sound level of 68.5 dB.

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