787 Cabin Quieter than the A380?
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787 Cabin Quieter than the A380?
Hey guys,
I have a bit of a question to those who were lucky enough to travel on a Boeing 787. Is it quiet during cruise? I've only flown on two aircraft, the 777 and A330. I found the A330 really quiet during cruise (but not really on takeoff), whereas the 777 was quite loud with lots of wind. I know for a fact the A380 has the quietest cabin, but there is increasingly a number of reports which say the 787 might be even quieter. This is an example.
Also, another question, is the 787 strong on takeoff, like the 757 (which is said to be a rocket)?
Thanks.
I have a bit of a question to those who were lucky enough to travel on a Boeing 787. Is it quiet during cruise? I've only flown on two aircraft, the 777 and A330. I found the A330 really quiet during cruise (but not really on takeoff), whereas the 777 was quite loud with lots of wind. I know for a fact the A380 has the quietest cabin, but there is increasingly a number of reports which say the 787 might be even quieter. This is an example.
Also, another question, is the 787 strong on takeoff, like the 757 (which is said to be a rocket)?
Thanks.
Paxing All Over The World
Hi, EmadIV and welcome to the 'cabin'. Bear in mind that cabin noise is highly subjective. Each person perceives noise as relative to their previous experience, indeed cannot do otherwise!
I might read the paperwork that the cabin dB levels are 'x' but think it 'y'. I might be hard of hearing or particularly sensitive to the frequency at which the air is passing through the vents. Not to mention that the range of noise varies widely within the cabin. Are you near the galley? The toilets? Forward/aft of the wing? By the window or in the middle of the row?
The dB levels that are given tend to be averages and are absolute on the meter - not what each human thinks they are!
As to take off, again, perception is most everything. Here the other factors are: How loaded the a/c is, the elevation of the runway above sea level, the length of the runway and, again, where you are in the cabin. If you are near the front, the rotation will have you lifted more strongly, if you are in the back row, the first movement is a small downward shift, as the nose rises - before the whole machine lifts. If sitting in at the wing line, the feelings are reduced.
I might read the paperwork that the cabin dB levels are 'x' but think it 'y'. I might be hard of hearing or particularly sensitive to the frequency at which the air is passing through the vents. Not to mention that the range of noise varies widely within the cabin. Are you near the galley? The toilets? Forward/aft of the wing? By the window or in the middle of the row?
The dB levels that are given tend to be averages and are absolute on the meter - not what each human thinks they are!
As to take off, again, perception is most everything. Here the other factors are: How loaded the a/c is, the elevation of the runway above sea level, the length of the runway and, again, where you are in the cabin. If you are near the front, the rotation will have you lifted more strongly, if you are in the back row, the first movement is a small downward shift, as the nose rises - before the whole machine lifts. If sitting in at the wing line, the feelings are reduced.
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Thanks for the replies. I am generally speaking, and even though the A330 is really quiet during cruise, it is quite noisy on takeoff. On airliners.net, many say that the A380 has thicker walls. So I was simply wondering whether Boeing managed to 'win' the cabin quietness contest Airbus has been leading since the A330 and A340 came out.
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Just a guess but, if your seat is on the upper deck, you are already further away from the engines? There is wind noise outside the wall and air venting noise inside. The list goes on.
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I don't think cabin quietness is greatly impacted by the engines based on my flying experience on the 777. YouTube videos do not seem to get me anywhere, as in some you hear lots of wind in the A380 and in others no wind in the 777! I guess the 787 is not far from the A380 (if not already quieter) because I've asked another person who sad behind the wing on an ANA 788, and he said it is probably quieter than the A380. The thing is that the 787 (when more get delivered) will be a lot more common than the A380 on medium-haul routes. It sort of replaces the A330, which is very common.
Another question: is it possible for the 747-8 to be quieter than the 747-400 during cruise, or is it going to be the same? Just curious. Sorry for any disturbance caused.
Another question: is it possible for the 747-8 to be quieter than the 747-400 during cruise, or is it going to be the same? Just curious. Sorry for any disturbance caused.
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As for interior acoustics, the A380 is very quiet. I can hear the crew yapping across from me, whereas on 737, 767, A330 and others I could not. Same goes for when seated as a pax... can clearly hear conversations during flight (outside of service times) from 5 to 6 rows away, something which I could defintiely not do on any older aircraft.
Have surely heard some 'interesting' galley gossip I'm sure wasn't intended for my ears!!
Have surely heard some 'interesting' galley gossip I'm sure wasn't intended for my ears!!
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It does seem so. One of my friends said it's too quiet to be good, and that having some wind to drain out such noises as babies, etc. is better.
It's that quiet? WOW. 
I literally laughed out on that one.
Too bad no one says such things about the 787, as there will be more 787s than A380s in the next few years. The only thing I'm concerned about is that the A380 accelerates so sluggishly that it removes the hype of taking off like in the 757. givemewings, I can tell that you traveled on an A380. Do you feel the 'power' of the takeoff like on the other aircraft you mentioned? Thanks.
Have surely heard some 'interesting' galley gossip I'm sure wasn't intended for my ears!! 
I literally laughed out on that one.Too bad no one says such things about the 787, as there will be more 787s than A380s in the next few years. The only thing I'm concerned about is that the A380 accelerates so sluggishly that it removes the hype of taking off like in the 757. givemewings, I can tell that you traveled on an A380. Do you feel the 'power' of the takeoff like on the other aircraft you mentioned? Thanks.
Compared to a 777, no. Compared to a Dash 8, yes
You certainly don't get the intense "engines spooling up racing down the runway feeling"- though that does vary depending on where you are sitting. Just forward of the wings seems to be most similar to other aircraft, i.e. loudest. Still not that loud in the scheme of things though.
Sitting most aft definitely results in a 'firmer' feeling landing... it tends to drag its ass a little bit
You certainly don't get the intense "engines spooling up racing down the runway feeling"- though that does vary depending on where you are sitting. Just forward of the wings seems to be most similar to other aircraft, i.e. loudest. Still not that loud in the scheme of things though.
Sitting most aft definitely results in a 'firmer' feeling landing... it tends to drag its ass a little bit
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Nice 'trip report'
Well since I'm really intrigued by takeoffs I guess I need to hope that the A350 will strike a good balance... or travel on the 787 myself. It seems like Qatar will receive its 787s late by 6 months this June :/
My 'weakest' takeoff was on a lightly-loaded 777-200ER with the GE90s and I guess the A380 will be much weaker. We just need to wait till another airline gets the Dreamliner.
Well since I'm really intrigued by takeoffs I guess I need to hope that the A350 will strike a good balance... or travel on the 787 myself. It seems like Qatar will receive its 787s late by 6 months this June :/
My 'weakest' takeoff was on a lightly-loaded 777-200ER with the GE90s and I guess the A380 will be much weaker. We just need to wait till another airline gets the Dreamliner.
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uh!
Is the following true? If so can someone explain.
Given in the paper as one of the benefits of the 787
Eight times less turbulence than conventional jets due to a massive 60-metre wing span.
Given in the paper as one of the benefits of the 787
Eight times less turbulence than conventional jets due to a massive 60-metre wing span.
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All the reviews I read on the 787 by passengers (trip reports) confirm this feature. Don't know why, the 777 has an even longer wingspan and doesn't do a good job at avoiding turbulence. I find this an important feature since turbulence really can cause trouble (sometimes, in the worst cases, flight attendants can get injured). Any explanation guys?
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Eight times less turbulence than conventional jets due to a massive 60-metre wing span.
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Er, doesn't that mean that they would bounce more, rather than less?
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I have found a proper explanation through some Googling on CNN GO.
Straightforward explanation. The review on Airliners.net helps emphasize this point a bit more:
My guess is that this aircraft is currently the best at avoiding turbulence. Good job Boeing
Originally Posted by CNN GO
While the 787 won't exactly sail bump-free through turbulence, passengers can anticipate less motion sickness, thanks to a system that detects turbulence and changes wing control surfaces to counteract its effects.
Originally Posted by cinja
I felt that there were times when I forgot I was flying, it was such a smooth and quiet ride, helped by the complete lack of turbulence.
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Other things being equal, a twin is always likely to be more nifty on takeoff since it needs to have double the power needed for flight, instead of only 133%. The most urgent takeoffs I've experienced were on DC-9s on the short flight between Canberra and Sydney, often with a light load. Nearest thing to a glider winch launch.
If wingspan were the reason, the A380 should be the smoothest ride at a wingspan of approx 79.5m.
Passengers do say it feels smoother, however I would guess it's due to a) the system mentioned above and b) pilots actively avoiding the worst of the turbulence and being proactive in keepign the ride as smooth as possible (yes I am sure there are some who are more 'picky' about that than others)
Passengers do say it feels smoother, however I would guess it's due to a) the system mentioned above and b) pilots actively avoiding the worst of the turbulence and being proactive in keepign the ride as smooth as possible (yes I am sure there are some who are more 'picky' about that than others)