CX and aviation.
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SUD's
Wasn't it CX that introduced the B747-400 and called it the exceptional B747-SUD in all their marketing - Stretched Upper Decks.... press launch.... fanfare.. dancing hosteses....
until someone pointed out that SUD in the Western world meant Sudden Unexplained Death.......
OOps.......
until someone pointed out that SUD in the Western world meant Sudden Unexplained Death.......
OOps.......
Last edited by GroundScot; 23rd Apr 2014 at 05:42. Reason: spelling
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SUD is how Boeing has always labelled the extended upper deck on when it was first introduced on the -200.
It's just that CX invented it, of course, right before they gave Boeing the blueprint for the 777.
It's just that CX invented it, of course, right before they gave Boeing the blueprint for the 777.
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Not exactly.
Before it became known as the -300, it was offered for sale and indeed designated the -200 SUD.
There are even a few frames which have been converted from -200 to -200SUD:
Coincidentally, it happened right around the time beancounters started running airlines...
Before it became known as the -300, it was offered for sale and indeed designated the -200 SUD.
There are even a few frames which have been converted from -200 to -200SUD:
Coincidentally, it happened right around the time beancounters started running airlines...
Actually the -200 SUD came out after the 747-300 was designed. Since there was little difference between the -300 and the -200 (aside from the longer upper deck) it was a relatively cheap way to get the benefits of the -300 without buying a new airplane.
IIRC, Boeing did the -200 SUD retrofit on 20 airplanes.
BTW, the longer upper deck didn't just add some seats - it gave the airplane better area ruling leading into the wing which improved the high speed drag characteristics. Improved cruise Mach by about .01
IIRC, Boeing did the -200 SUD retrofit on 20 airplanes.
BTW, the longer upper deck didn't just add some seats - it gave the airplane better area ruling leading into the wing which improved the high speed drag characteristics. Improved cruise Mach by about .01
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Great thread on the subject (from 2004):
Cathay Pod Nod's [Archive] - PPRuNe Forums
Cathay Pod Nod's [Archive] - PPRuNe Forums
Pod nod was indeed a L1011 and not a Boeing problem, as described above. As for the 747 the angle of incidence of the engine nacelles was changed from about the second -300 on, nothing to do with SJ, but a refinement by the manufacturer (probably when the -400 RR design was verified) Supposed to make a small difference on fuel burn, but not enough for retrofitting costs. If you look at HVY and compare the engine 'angle' on the wing to the -400 you will see the difference.