Is A350 or 787 quieter?

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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The high bypass engines and smooth aerodynamics mean that as well as being economical the A350 is the quietest long haul aircraft in the sky. This is good news for our customers relaxing onboard.

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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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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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It has been reported that the A350 is quieter than the B787, primarily due to the automatic Noise Abatement Departure Procedure (NADP) for the optimization of the engine thrust and flight path to reduce noise and the fuel-efficient engine. The other giant airplane, A380, is also known to have a quiet cabin.

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They had very low bypass ratios and as a result, were noisy and thirsty beasts. Over the years the size of those first stage fans has grown – as has the percentage of bypass gas – to the point today where the A350 Trent XWB engine is a true giant, and the bigger the engine, the more efficient and quiet it is.

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Boeing Business Jet (BBJ) 787 - Estimated cabin noise level: 55-60 decibels.

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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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The Airbus A350 was developed in response to Boeing's successful 787 Dreamliner, aiming to offer equal or better range and efficiency. The aircraft features a wider cabin compared to the 787, allowing for high-density configurations if desired, and boasts quieter cabins and optimized air quality.

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The huge TV screens. The spacious interior, and the numerous little touches we've designed and added just for you. But equally impressive are some of the unseen innovations, because the A350 is the quietest and most economical long haul jet ever built. It's an incredible machine.

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Airbus has changed the design of its A350 flagship jet amid its dispute with Qatar Airways over peeling paint. Airbus has changed the copper foil used on its A350 aircraft, which protects from lightning strikes. In 2021, Qatar Airways sued Airbus over chipped paint that exposes the copper mesh, citing a safety risk.

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The sound comes from the rotary hydraulic motor situated in the wheel well of the jet which turns the drive shaft for the flap drive screw jacks.

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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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Early Boeing 707s were extremely noisy, as was the Boeing 747-200, but the one aircraft that got a bad rap for its noisy takeoffs and landings was the Boeing 727.

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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 global A350 fleet had completed more than 1,175,000 flights on more than 1070 routes without accidents. It succeeds the A340 and competes against Boeing's large long-haul twinjets: the Boeing 787, the Boeing 777, and its successor, the 777X.

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The 787 was the first major commercial aircraft to use carbon fiber composite components in the fuselage and wing construction. These make the aircraft lighter but still offer high strength. New, more efficient engines. The 787 is designed to take either the General Electric GEnx or the Rolls-Royce Trent 1000 engine.

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