RichardPrice From , joined Dec 1969, posts, RR:
Reply 1, posted (7 years 3 weeks 3 hours ago) and read 3183 times:
They removed them.
Seriously, this thing has a hump the size of a pimple on a 14 year old boys face, its huge, winglets are the last thing on anyones mind when they consider the design of this - the efficiency savings winglets give are massively offset by the relatively small number of hours the Dreamlifter will do, and the inefficiency added by the cargo hump.
If I remember correctly, a lot of the Japanese airlines had the winglets removed from their 747s because the added weight wasnt offset enough because the planes did short haul work.
Fyano773 From Mexico, joined Mar 2004, 784 posts, RR: 1
Reply 2, posted (7 years 3 weeks 3 hours ago) and read 3157 times:
During test flights a vibration problem was found but Boeing solved the issue by removing the Dreamlifter's winglets and changing the way the fuel load is distributed. See: Analyst's 787 doubts burn Boeing