Why is Boeing 787 so quiet?

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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The Dreamliner's lightweight composite structure contributes to reduced noise levels, both inside and outside the aircraft.

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The 787 was designed to be the first production airliner with the fuselage comprising one-piece composite barrel sections instead of the multiple aluminum sheets and some 50,000 fasteners used on existing aircraft. Boeing selected two new engines to power the 787, the Rolls-Royce Trent 1000 and General Electric GEnx.

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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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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 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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The FAA said the leaks could damage critical equipment and lead to a “loss of continued safe flight and landing.” The agency said one airline found wet carpet in the cockpit of a plane and, when it inspected its entire fleet of 787s, found “multiple” planes with leaking faucets.

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While passengers love the experience in the back, it's also a great place for the pilots to work. A number of features on the aircraft set it apart from other aircraft types. So, even when your working day can be 19 hours long, I'd much rather be doing it in a Dreamliner than any other type.

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The 787's latest problem mirrors production issues discovered over 2020 and 2021 that included improperly fitted shimming that led to paper-thin gaps between surfaces on the Dreamliner's fuselage.

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Smoother Ride Technology: Sensors on the 787 sense and dampen turbulence for a more comfortable ride and less motion sickness. Large overhead bins: There's space for your carry-on near your seat. Better seating options: The 787 offers the latest in seat comfort and technology.

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The Bottom Line: The Airbus A350-900 and Boeing 787-9 are very similar aircraft, suited for similar missions. As one would expect, the slightly larger A350-900 has a seat-mile cost advantage, while the 787-9 has an advantage in cost per block hour. These aircraft are competitive, and nearly tie in economic performance.

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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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As of Oct 11, 2023, the average annual pay for the Boeing 787 Pilot jobs category in Wilmington is $84,505 a year. Just in case you need a simple salary calculator, that works out to be approximately $40.63 an hour. This is the equivalent of $1,625/week or $7,042/month.

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The Dreamliner is a successful aircraft, still in production with more than 1600 delivered or on order. The list price for a new Boeing 787-8 is $239 million dollars. Yet even as international travel opens again for these long-range aircraft, two Dreamliners barely ten years old are waiting for the wrecker's ball.

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To start the Boeing 777 vs 787 comparison, we must say that the 787 is a more fuel efficient aircraft than the 777 thanks to its use of composite wings and more aerodynamically efficient design.

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Boeing's Sanderson isn't defending the delays, but stresses that “All 787s in service and in our inventory are perfectly safe to fly.” The planemaker sees a silver lining with learnings applied to build even better 787s and new aircraft like the next-generation 777-9.

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In July 2003, a public naming competition was held for the 7E7, for which out of 500,000 votes cast online the winning title was Dreamliner. Other names included eLiner, Global Cruiser, and Stratoclimber. All Nippon Airways launched the 787 program with an order for 50 aircraft in 2004.

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What Caused The Battery Fires That Grounded the Boeing 787 10 Years Ago? A combination of design issues, wrong assumptions, and inadequate testing procedures contributed to the fleet's grounding. In late 2012 Japan Airlines took delivery of another Boeing 787-800, and it entered into service shortly after.

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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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We can see that the smaller variants of the 787 have a better range than the larger 787-10. In fact, the mid-sized 787-9 even outranks the A380. However, in terms of the comparison to the larger 787-10, the A380 appears, on paper, to be the more flexible aircraft on account of its longer range.

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The Boeing 787 has similar safety features to the 777, but also features improvements such as a wider and longer aisle space for passengers and smoother engine takeoff capability which can reduce air turbulence and improve safety during takeoffs.

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