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747-100  
User currently offlineJRSLim From United States of America, joined May 2002, 9 posts, RR: 0
Posted (12 years 1 month 3 weeks 5 days 23 hours ago) and read 2305 times:

I've got a general question concerning 747-100s and in particular a British Airways plane: G-AWNL.
My mom dug out my 'BA Junior Jet Club' logbook form our trip to England in '77 and AWNL was one of the planes we flew on. I looked it up here and noticed in the pictures that it was modified from a 'three window' upper deck to the ten window version. I thought this was pretty interesting and would like to find out more info about this -- and if the modification included any other changes in engines etc. From the order of the pics, the mods must have taken place between 1978 and 1981.
If you know, please clue me in.
Thanks
Shaun


Go Where Eagles Dare
5 replies: All unread, jump to last
 
User currently offlineIMissPiedmont From United States of America, joined May 2001, 6307 posts, RR: 33
Reply 1, posted (12 years 1 month 3 weeks 5 days 20 hours ago) and read 2252 times:

Yje modification to 9 or 10 windows from 3 is very simple. Cut the extra holes, install thewindow assembly and tou're done. The engines and all other systems remained unchanged.

One of the many Steves



Damn, this website is getting worse daily.
User currently offlineNotar520AC From United States of America, joined Jul 2001, 1606 posts, RR: 4
Reply 2, posted (12 years 1 month 3 weeks 2 days 17 hours ago) and read 2067 times:

But don't they have to stretch the upper deck to accomodate the extra windows? Just wondering.

Thx.



BMW - The Ultimate Driving Machine
User currently offlineAFa340-300E From France, joined May 1999, 2084 posts, RR: 26
Reply 3, posted (12 years 1 month 3 weeks 2 days 7 hours ago) and read 2017 times:

Hello,

No they simply put more windows where there weren't any. The 747's upper deck was originally intended as a first class lounge, dance floor, ... But when airlines started using that floorspace to put additional seats, it became obvious that they would need to have 'standard' windows. Otherwise it would be like flying in a cargo airplane  Smile

Best regards,
Alain Mengus
Air Transport Business


User currently offlineIMissPiedmont From United States of America, joined May 2001, 6307 posts, RR: 33
Reply 4, posted (12 years 1 month 3 weeks 1 day 18 hours ago) and read 1939 times:

I am so embarrassed. I really can spell!

The reason that the upper deck needn't be stretched is as Alain said. I might add that stretching the upper deck is also not very difficult. It could be done along with a "D" check without much extra downtime. Splice in a few frame extensions, a stinger or two and rivet on the skin. Voila! You have a -200(SUD). I simplify a bit I admit but it is actually a bit easier than a freighter mod.

Steve



Damn, this website is getting worse daily.
User currently offlineNa From Germany, joined Dec 1999, 10765 posts, RR: 9
Reply 5, posted (12 years 1 month 2 weeks 5 days 13 hours ago) and read 1799 times:

Many airlines modified their 747-100s (and early -200s) when the upper deck lounges were removed. These modifications happened in most cases around 1980.
Airlines that changed from 3 to 10 include Northwest Orient (all 15 aircraft, that´s 10 -100s, 5 -200s), Condor (D-ABYF), United (747-122s, but not the 747-123s bought from AA!), of course British Airways (all -100s that were delivered with 3 upper deck windows) and others.


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