Sponsor Message:
Civil Aviation Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Cabin Noise Levels In 380 Vs. 787 & 748  
User currently offlineJAAlbert From United States of America, joined Jan 2006, 1557 posts, RR: 1
Posted (6 years 6 months 4 days 19 hours ago) and read 8047 times:

The A-380 is winning praise from passengers and crew for its quiet cabin. I've personally found the muffled roar from engines wearying on very long flights. Will the 787 and 748 match the noise levels of the 380 and usher in a new standard in cabin noise levels? Or, as one a-netter reported, does Boeing's emphasis lie elsewhere in designing its new jets?

6 replies: All unread, jump to last
 
User currently offlinePianos101 From United States of America, joined Jan 2008, 365 posts, RR: 0
Reply 1, posted (6 years 6 months 4 days 17 hours ago) and read 7875 times:

The main reason that the a380 is so quite inside is because since it is so massive the engines are much farther away from the cabin. Also, engine technological advances do play a big role; this is why the a380 is also very quiet when heard from the ground taking off.

The engines used on the 87 and 47-8 will also use similar noise-reduction technologies thus reducing noise inside and outside the cabin. However, since the 87 is still much smaller than the a380 and 47, the engines will be closer to the cabin and probably be "perceived" as being louder....


User currently offlineDistantHorizon From Portugal, joined Oct 2005, 224 posts, RR: 0
Reply 2, posted (6 years 6 months 4 days 17 hours ago) and read 7830 times:



Quoting Pianos101 (Reply 1):
The main reason that the a380 is so quite inside is because since it is so massive the engines are much farther away from the cabin.

No.  no 
A few meters difference in engines distance makes no noticeable diference in decibels. At all.

The 787 has thinner walls than the A380 does. And yes, as a result, it will be louder inside. Just do not know yet how much...


User currently offlineAstuteman From United Kingdom, joined Jan 2005, 9981 posts, RR: 96
Reply 3, posted (6 years 6 months 4 days 17 hours ago) and read 7744 times:
Support Airliners.net - become a First Class Member!



Quoting DistantHorizon (Reply 2):
The 787 has thinner walls than the A380 does. And yes, as a result, it will be louder inside. Just do not know yet how much...

 checkmark 
Most everything has thinner walls than the A380  Wink

The 787 and 748i should be quiet airplanes inside.
(BA did say one of the factors favouring the A380 over the 748i was lower noise, but I presume this to mean externally).
Will they be as quiet as the A380? Don't know.
Will they be near enough that it won't matter?
Probably.  Smile
Will they be quieter than a 777?
Undoubtedly  Smile

Regards


User currently offlineRayChuang From United States of America, joined Jun 2000, 7993 posts, RR: 5
Reply 4, posted (6 years 6 months 4 days 16 hours ago) and read 7703 times:

The A380-800 should technically be quieter than the 747 because the Trent 970 or GP7270 engines used on this plane turns the front fan at a lower speed than what you get on the 747-400 engines, which means less noise generation overall.

User currently offlineGorgos From Greece, joined Dec 2007, 232 posts, RR: 0
Reply 5, posted (6 years 6 months 4 days 16 hours ago) and read 7635 times:



Quoting Pianos101 (Reply 1):
this is why the a380 is also very quiet when heard from the ground taking off.

Would this maybe also have something to do with lower take off speeds, due to massive wing?


User currently onlineScipio From Belgium, joined Oct 2007, 852 posts, RR: 9
Reply 6, posted (6 years 6 months 4 days 16 hours ago) and read 7538 times:



Quoting DistantHorizon (Reply 2):
The 787 has thinner walls than the A380 does.

Comparing the inside and outside dimensions of the A350 and the B787, it seems that the B787 has significantly thinner walls than the A350 as well. Should we expect the A350 to be significantly quieter on the inside than the 787?


Top Of Page
Forum Index

This topic is archived and can not be replied to any more.

Printer friendly format

Similar topics:More similar topics...
Noise Levels In DC9/MD80 Aircraft posted Wed Jan 2 2008 19:45:54 by AT
What's In A Name? 787-8 Vs 787-800 posted Sat Jul 14 2007 16:40:27 by FlyABR
Cabin Layout In 380 Demo Craft Realistic? posted Mon May 28 2007 15:31:20 by Flyvabb
New A350 Vs 787 Battle In Sight posted Fri Jan 20 2006 00:08:49 by FCKC
777 Vs A330 Cabin Noise Level posted Thu Oct 11 2001 14:40:06 by Saab2000
AF Cabin Crew Disruptions In The New Year? posted Mon Dec 17 2007 11:40:28 by Avek00
FedEx And The A380 & 748 posted Wed Nov 7 2007 11:57:35 by DIA
Paramount Aw India In Talks With Airbus & Boeing posted Thu Sep 20 2007 12:31:23 by FCKC
MAXjet In Preliminary Discussions With A & B posted Thu Jul 26 2007 21:15:34 by Flying-Tiger
No Sales Contest At VS - 787 Was Sole Runner posted Wed Apr 25 2007 15:42:17 by Flying-Tiger