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Why Not, A B747XS Double Decker?  
User currently offlineCitation X From Malaysia, joined Feb 2001, 47 posts, RR: 0
Posted (13 years 7 months 4 days 15 hours ago) and read 1443 times:

With a stretched upper deck the entire length of the fuselage, the B747XS would be able to accomodate more passengers and thus lower seat/mile cost. Also, with the stretched fuselage, there will be more room to accomodate cargo/baggage.

Maybe Boeing knows something I don't?

What do y'all think?

5 replies: All unread, jump to last
 
User currently offlineDatamanA340 From South Korea, joined Dec 2000, 547 posts, RR: 0
Reply 1, posted (13 years 7 months 4 days 11 hours ago) and read 1400 times:

Such a long cabin with only one aisle. It's better to design a new fuselage.

User currently offlineIkarus From United Kingdom, joined Jan 2001, 3524 posts, RR: 2
Reply 2, posted (13 years 7 months 4 days 11 hours ago) and read 1396 times:

Structurally probably harder to achieve than the current configuration: The flat areas on the side of the upper deck are structurally the most problematic points of the airframe (because of the pressure acting on a flat surface instead of curved one), extending that to full length might be impossible. Also, the aerodynamic efficiency is assumed to be optimised at the current upper deck length (i.e. ending just before the wing) which is why I don't think Boeing would ever extend the upper deck past the onset of the wing.

User currently offlineAirfun From United States of America, joined Jul 2000, 108 posts, RR: 0
Reply 3, posted (13 years 7 months 4 days 4 hours ago) and read 1352 times:

Isen't that basically what airbus did? Correct me please.

User currently offlineCruising From Canada, joined Jan 2001, 258 posts, RR: 0
Reply 4, posted (13 years 7 months 4 days 3 hours ago) and read 1336 times:

If you want THE answer, ask Joe Sutter. Big grin

User currently offlineRIX From United States of America, joined Aug 2000, 1787 posts, RR: 1
Reply 5, posted (13 years 7 months 4 days 3 hours ago) and read 1332 times:

No, Airbus didn't stretch the narrowbody upper deck to the full length. They just designed (will design) a new airframe. The difference is that A380 is (of course  Smile) intended to have such a layout while B747 is probably not. And, even if yes, the stretched upper deck will be tooooo long to have a single aisle... and to make it wider would mean to build a new airframe - exactly as Airbus did.

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