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Hump On AA's New 777 300-ER?  
User currently offlinebtfarrwm From United States of America, joined May 2011, 58 posts, RR: 0
Posted (1 year 7 months 3 weeks 2 days 14 hours ago) and read 26827 times:

AA's new 777 has a hump above the 2nd door. In searching the database, I don't see it on other T7. Anyone know the purpose?

http://www.airliners.net/photo/Untit...ines)/Boeing-777-323/ER/2206826/L/

29 replies: All unread, showing first 25:
 
User currently offlineN62NA From United States of America, joined Aug 2003, 4447 posts, RR: 6
Reply 1, posted (1 year 7 months 3 weeks 2 days 14 hours ago) and read 26829 times:

Satellite dish for internet?

Quoting btfarrwm (Thread starter):
AA's new 777 has a hump above the 2nd door. In searching the database, I don't see it on other T7. Anyone know the purpose?

Satellite dish for internet?


User currently offlinesevenheavy From United Kingdom, joined Mar 2004, 1156 posts, RR: 10
Reply 2, posted (1 year 7 months 3 weeks 2 days 14 hours ago) and read 26772 times:

Its probably for Wifi comms equipment. I'm pretty sure I read these aircraft have it installed and I've seen similar "humps" on other WiFi equipped aircraft (WN B73G's, DL etc.)


So long 701, it was nice knowing you.
User currently offlinetoobz From Finland, joined Jan 2010, 778 posts, RR: 0
Reply 3, posted (1 year 7 months 3 weeks 2 days 13 hours ago) and read 26599 times:

Wifi like others have said.

User currently offlinepdxswa From United States of America, joined Jul 2007, 85 posts, RR: 0
Reply 4, posted (1 year 7 months 3 weeks 2 days 13 hours ago) and read 26451 times:
AIRLINERS.NET CREW
PHOTO SCREENER

2 of Etihad's most recent 77W's have the same wifi dome that the AA 77W has.

http://www.airliners.net/photo/Untit...ways)/Boeing-777-3FX-ER/2204097/L/

http://www.airliners.net/photo/Untit...ways)/Boeing-777-3FX-ER/2202481/L/


User currently offlinereadytotaxi From United Kingdom, joined Dec 2006, 3218 posts, RR: 2
Reply 5, posted (1 year 7 months 3 weeks 2 days 12 hours ago) and read 25929 times:

The WiFi of Notre Dame.  


you don't get a second chance to make a first impression!
User currently offlineyendig From United Kingdom, joined Mar 2006, 145 posts, RR: 0
Reply 6, posted (1 year 7 months 3 weeks 2 days 7 hours ago) and read 23218 times:
Support Airliners.net - become a First Class Member!

It a 748I hybrid...      

User currently offlineBA From United States of America, joined May 2000, 11153 posts, RR: 59
Reply 7, posted (1 year 7 months 3 weeks 2 days 6 hours ago) and read 23111 times:

Panasonic eXConnect

http://www.mascorp.com/products/globalcomm.aspx



"Generosity is giving more than you can, and pride is taking less than you need." - Khalil Gibran
User currently offlinegauravpai From , joined Dec 1969, posts, RR:
Reply 8, posted (1 year 7 months 3 weeks 2 days 6 hours ago) and read 23041 times:

The title was a bit misleading 

I Thought someone had joined the Mile High Club !!         

Cheers


User currently onlinenethkt From Thailand, joined Apr 2001, 1079 posts, RR: 3
Reply 9, posted (1 year 7 months 3 weeks 2 days 6 hours ago) and read 21923 times:

Scandinavian Airlines has it long time ago..

http://www.airliners.net/photo/Scand...d=14e1731c2e4bcd0dd56782098bc74d15

http://www.airliners.net/photo/Scand...d=14e1731c2e4bcd0dd56782098bc74d15



Let's just blame it on yields.
User currently offlinekl692 From Canada, joined Feb 2006, 676 posts, RR: 0
Reply 10, posted (1 year 7 months 3 weeks 2 days 5 hours ago) and read 21589 times:

Quoting btfarrwm (Thread starter):
AA's new 777 has a hump above the 2nd door. In searching the database, I don't see it on other T7. Anyone know the purpose?

I don't know how old TC-JJI is but it sure looks like it have one too



A310, A330,A346,B73H, B747,B772,B77W,CRJ
User currently offlineYVRFlyer From Canada, joined Oct 2006, 83 posts, RR: 0
Reply 11, posted (1 year 7 months 3 weeks 1 day 23 hours ago) and read 16769 times:

Out of curiosity, what kind of drag/fuel penalty does the bump and extra weight typically put on an aircraft? I can't find any info on that.


YVRFlyer
User currently offlinea300 american From United States of America, joined Jan 2000, 173 posts, RR: 1
Reply 12, posted (1 year 7 months 3 weeks 1 day 19 hours ago) and read 13800 times:

Quoting YVRFlyer (Reply 11):
Out of curiosity, what kind of drag/fuel penalty does the bump and extra weight typically put on an aircraft? I can't find any info on that.

great question, I'd like to know as well..............


User currently offlineVHHYI From Australia, joined Oct 2007, 97 posts, RR: 0
Reply 13, posted (1 year 7 months 3 weeks 1 day 18 hours ago) and read 12435 times:

Quoting YVRFlyer (Reply 11):
Out of curiosity, what kind of drag/fuel penalty does the bump and extra weight typically put on an aircraft? I can't find any info on that.

Haven't heard specifics about this aircraft/system, but Virgin Australia has a similar antenna installed on many of its 737s that had live2air IFE installed during the Virgin Blue days, i.e as seen in this picture: http://www.airliners.net/photo/Virgi...e-Airlines/Boeing-737-7Q8/2106499/

1.2% performance degradation (whatever that means) on top of an extra 15kg fuel for a short sector, according to this post:
http://www.pprune.org/dg-p-general-a...294372-whats-bump-vbulletin-c.html



This Porsche is like an Airbus;an Engineering marvel, but without passion - Jeremy Clarkson
User currently offlineairbazar From United States of America, joined Sep 2003, 8287 posts, RR: 10
Reply 14, posted (1 year 7 months 3 weeks 1 day 18 hours ago) and read 12287 times:

Quoting YVRFlyer (Reply 11):
Out of curiosity, what kind of drag/fuel penalty does the bump and extra weight typically put on an aircraft? I can't find any info on that.

Or better yet, why is a "hump" even necessary? Is the equipment that large that it won't fit without altering the exterior?


User currently offlineandytb77 From United States of America, joined Dec 2008, 29 posts, RR: 0
Reply 15, posted (1 year 7 months 3 weeks 1 day 18 hours ago) and read 11799 times:

Quoting YVRFlyer (Reply 11):
Out of curiosity, what kind of drag/fuel penalty does the bump and extra weight typically put on an aircraft? I can't find any info on that.
Quoting a300 american (Reply 12):
great question, I'd like to know as well..............

Agreed; great question. I'd also like to know if the location of the dome on the fuselage makes a difference. On the 77W it's obviously forward, and on the 737s it's toward the aft portion


User currently offlinespchamp1 From United States of America, joined Apr 2010, 87 posts, RR: 0
Reply 16, posted (1 year 7 months 3 weeks 1 day 18 hours ago) and read 11598 times:

It is a satellite dish basically. B6 has them on their aircraft and that is what receives the DirecTV satellite signal for the TV's onboard. With the new ViaSat WiFi option coming onboard soon, all existing dishes will need to be replaced with ones that are capable of receiving the ViaSat signal. These new dishes will be a bit bigger and require a bigger housing than the ones currently affixed to the a/c.

User currently offlinedalmd88 From United States of America, joined Jul 2000, 2540 posts, RR: 14
Reply 17, posted (1 year 7 months 3 weeks 1 day 17 hours ago) and read 10532 times:

Quoting airbazar (Reply 14):
Or better yet, why is a "hump" even necessary? Is the equipment that large that it won't fit without altering the exterior?

The dish mounts on the exterior of the fuselage. It sits on a platform that conforms to the surface and give a nice large flat mounting surface. The dish itself is a large flat platter about 2 ft across that rotates to aline with the overhead satellite. To get a signal it has to be exterior of the skin. The radome is to protect the dish and provide aerodynamics. Weight is really much. The radome is really nothing and even the dish assembly can be moved by one person.


User currently offlinepdxswa From United States of America, joined Jul 2007, 85 posts, RR: 0
Reply 18, posted (1 year 7 months 3 weeks 1 day 16 hours ago) and read 8986 times:
AIRLINERS.NET CREW
PHOTO SCREENER

Here is TC-JJE the first new build 77W for Turkish Airlines with the same WiFi dome.

http://www.airliners.net/photo/Untit...ines)/Boeing-777-3F2-ER/1792131/L/


User currently offlinetonytifao From Brazil, joined Mar 2005, 1019 posts, RR: 0
Reply 19, posted (1 year 7 months 3 weeks 1 day 15 hours ago) and read 8867 times:

anyone know what the cost will be for inflight internet on 8 hour flight?

User currently offlinepdxswa From United States of America, joined Jul 2007, 85 posts, RR: 0
Reply 20, posted (1 year 7 months 3 weeks 1 day 15 hours ago) and read 8837 times:
AIRLINERS.NET CREW
PHOTO SCREENER

Cathay Pacific obviously have another brand of WiFi dome. There's is located aft as is seen on B-KQB. It looks better near the back as seen on this Cathay 77W. With the WiFi dome up front. It breaks up the clean lines of the 77W.

http://www.airliners.net/photo/Untit...cific/Boeing-777-367-ER/2108040/L/


User currently offlinetdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 21, posted (1 year 7 months 3 weeks 1 day 15 hours ago) and read 8202 times:

Quoting airbazar (Reply 14):
Or better yet, why is a "hump" even necessary? Is the equipment that large that it won't fit without altering the exterior?

It'll fit inside but it can't see through the skin. To put it inside you'd have to splice a non-conductive piece of structural skin into the existing skin. That is, to put it mildly, a challenging structural issue and you'd probably gain as much weight on the splice as you saved on drag.

Tom.


User currently offlineboysteve From United Kingdom, joined Apr 2004, 937 posts, RR: 0
Reply 22, posted (1 year 7 months 3 weeks 1 day 15 hours ago) and read 8120 times:

I have seen similar but smaller humps on QR's A330's at MAN. They are quite noticeable when park alongside other A330's such as TCX or EY.

User currently offlinepdxswa From United States of America, joined Jul 2007, 85 posts, RR: 0
Reply 23, posted (1 year 7 months 3 weeks 1 day 15 hours ago) and read 8058 times:
AIRLINERS.NET CREW
PHOTO SCREENER

Saudi Arabian has a WiFi dome similar to placement like Cathay Pacific. Saudi Arabian's is just behind the L4 door as seen here on HZ-AK11

http://www.airliners.net/photo/Saudi...lines/Boeing-777-368-ER/2183529/L/


User currently offlinepdxswa From United States of America, joined Jul 2007, 85 posts, RR: 0
Reply 24, posted (1 year 7 months 3 weeks 1 day 14 hours ago) and read 7547 times:
AIRLINERS.NET CREW
PHOTO SCREENER

TAM's WiFi dome is low profile too as is seen here on PT-MUE.

http://www.airliners.net/photo/TAM/Boeing-777-32W-ER/2168334/L/


25 DuncanTruro : These 'humps' are not dishes, but an array of electrically steered antennas on a machined mount, with an aerodynamic cover, used for satellite communi
26 DocLightning : I'm having trouble visualizing why side-mounted dishes would be less able to pick up the comsats in the polar regions. If the birds are in geosynchro
27 Post contains images YVRFlyer : Thank you for that, VHHYI! Doing a back-in-the-head calculation (I'm probably off the mark), on an ULH flight the lost opportunity (i.e. extra weight
28 FI642 : My friends at WN said that the dish almost negates the benefit of winglets on their 737's
29 Post contains links and images mandala499 : View Large View MediumPhoto © Bill Shemley It is a Low-profile Ku-Band satellite communications antenna. This allows broadband speed data communicati
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