Is the Boeing 787 quiet?

2 Boeing 787 Dreamliner The Dreamliner's lightweight composite structure contributes to reduced noise levels, both inside and outside the aircraft. The use of advanced soundproofing materials and quieter engines keeps the cabin environment more tranquil for passengers.



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

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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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The loudest aircraft still in commercial service in any significant numbers is the Boeing 727. The 727 is banned from most major airports due to its noise levels. Among aircraft permitted worldwide, the Boeing 747–400 is noticeably louder than other widebody aircraft such as 777, A380 and A350.

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The Dreamliner's lightweight composite structure contributes to reduced noise levels, both inside and outside the aircraft. The use of advanced soundproofing materials and quieter engines keeps the cabin environment more tranquil for passengers.

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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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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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The A350 offers the ultimate passenger experience even on the longest of flights. Its innovative design delivers a true feeling of spaciousness, with wide seats, high ceilings and alluring ambient lighting.

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Sitting in the front of the wing is like being behind a speaker. All of the sounds of the engine and the disturbed air are projected away from you... For a more peaceful ride, find a seat in the front of the cabin.

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Current 787 deliveries have been mostly suspended over the last year because of quality control programs involving microscopic tolerances of fasteners joining fuselage barrels together, and additional issues with electrical systems and windscreens.

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This advanced fly-by-wire system also is the key to Smoother Ride Technology – unique to the 787 family -- which senses turbulence and adjusts control surfaces automatically to dampen its effects before it reaches the passengers.

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The Boeing 787 Dreamliner has revolutionized flying for both passengers and pilots. Taking a leap into the future from its predecessors, the designers incorporated a number of new features that make the Dreamliner one of the most fuel efficient and comfortable aircraft in the skies.

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However, did the 787 truly fly supersonic relative to the air? The answer is no. The 787 is a widebody passenger aircraft capable of flying long distances at a cruise speed of 0.85 Mach (652 mph/1,050 kph).

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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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However, particularly high praise should be given to older aircraft, such as Boeing's 737-600 and 737-900 models, that have never had a hull loss, despite having been in service since the turn of the century.

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The 787 promised passenger comfort One of the promises of the 787 was improved passenger comfort. There are several improvements in this area, including higher cabin air pressure. The cabin is pressurized at 6,000 feet, as opposed to 8,000 feet on most other aircraft, including the 777.

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Take a look at the size of the engine and the huge bypass fan. It will by size alone subject to more noise than smaller engines. The procedure used on the B-777 engine start that adds to the noise perception is that we start them both simultaneously.

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On board the Boeing 787-9, you can expect a new, comfortable travel experience and many innovations that will make your flight even more relaxing in the future. Look forward to the Dreamliner effect on your next trip.

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