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xms3200
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Saudi 747-400's With 2 Satcom Antennas

Wed Feb 08, 2006 9:13 am

I noticed that Saudi Arabian Airlines 747-468's have two satcom antenna's like the photos below show, all the other widebodies I have seen, have only one. Are there any other airlines that have a dual antenna system like Saudi Arabian, and also, does Saudi Arabian have a unique requirement for the dual system.

Thanks for all the replies.


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Photo © Stuart Lawson
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Photo © Tony Woof

 
avioniker
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RE: Saudi 747-400's With 2 Satcom Antennas

Thu Feb 09, 2006 3:32 am

It all comes down to how much you can afford for what your needs are...
There are a few other applications with multiple antenna installations.
One may educate the ignorance from the unknowing but stupid is forever. Boswell; ca: 1533
 
Tod
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RE: Saudi 747-400's With 2 Satcom Antennas

Thu Feb 09, 2006 3:51 am

Quoting Avioniker (Reply 1):
There are a few other applications with multiple antenna installations.

Some 777 have dual (LH and RH) satcom installations.

Tod
 
777
Posts: 431
Joined: Thu Sep 15, 2005 9:21 pm

RE: Saudi 747-400's With 2 Satcom Antennas

Thu Feb 09, 2006 8:14 pm

Hi,
I knew that Saudi Arabian was investing on the Internet on Board technology on its long haul fleet.
This technology requires, in most cases, a specific satellite antenna.

So this could be the reason why you see two antennas...

Ciao!
 
airbusA346
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RE: Saudi 747-400's With 2 Satcom Antennas

Thu Feb 09, 2006 10:23 pm

Quoting Tod (Reply 2):
LH

LH don't have 777's.

Tom.
Tom Walker '086' First Officer of a A318/A319 for Air Lambert - Hours Flown: 17 hour 05 minutes (last updated 24/12/05).
 
scxmechanic
Posts: 479
Joined: Sat Dec 25, 1999 10:20 am

RE: Saudi 747-400's With 2 Satcom Antennas

Thu Feb 09, 2006 10:36 pm

He means LH (LEFT HAND) and RH (RIGHT HAND) Satcom's. Not the 2 letter code for an airline...
 
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HAWK21M
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RE: Saudi 747-400's With 2 Satcom Antennas

Thu Feb 09, 2006 11:21 pm


LINK
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
na
Posts: 9155
Joined: Sun Dec 12, 1999 3:52 am

RE: Saudi 747-400's With 2 Satcom Antennas

Thu Feb 23, 2006 11:53 pm

When the 3 Saudi 744s were delivered in 98/99 (already with the double satcom on the back) there was no such thing as onboard internet. I also wondered why they have this feature (I´m pretty sure only one or two of the Middle East rulers private 744s have that double bubbly too). Onboard-internet pioneer Lufthansa have a bigger bubble installed now on some of their 744s).
 
aeroweanie
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RE: Saudi 747-400's With 2 Satcom Antennas

Fri Feb 24, 2006 2:22 pm

The dome that HAWK21M shows is a Marconi satcom dome. The Saudi 747s seem to have two of this dome. Its probably to double the number of possible telephone connections.

The Connexion By Boeing dome is much bigger. Here are some examples on Lufthansa A340s and 747s. On the A340 I think the forward dome is a Marconi, while the aft is definitely a CBB dome:

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Photo © Max Teuber


Here is a closeup of the Marconi dome:

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Photo © Max Teuber



Here is a 747-400 with a CBB dome:

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Photo © Keith Wahamaki


This one has a Marconi dome behind the CBB dome:

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Photo © Erezms


This one only has the Marconi dome:

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Photo © Manas Barooah

 
na
Posts: 9155
Joined: Sun Dec 12, 1999 3:52 am

RE: Saudi 747-400's With 2 Satcom Antennas

Tue Feb 28, 2006 7:38 am

LH got their 744s in basically two batches: D-ABVA upto -VN and D-ABTA up to -TH from 1989-92 and D-ABVO up to VZ and D-ABTK/L in the late 90s up to 2002. The second batch got the Marconi satcom. None of the original batch was upgraded. Thats why you can still tell these aircraft apart.

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