Hi everyoneI was wondering if anyone would know the rough altitude the B747-400Ds would cruise at, since they only fly domestically (or do they? Has anyone seen one of these non-winglet -400's away from Japan, maybe filling in for a -400 under maintenance, etc). Seems to me a packed 747 (and apparently they fly pretty full of people) would take a while to climb to any great height. Is there much of a difference in quoted range between the -400 and -400D?Thanks in advance, SLuggy

http://www.boeing.com/commercial/747family...estic_prod.htmlThe 747-400D has a very, very short range compared to all of the other 747 models

Are they short of a few fuel tanks, as part of the airframe strengthening?Cheers, SLuggy