Peter Adams <<peternadams>>
sent:

http://contest.techbriefs.com/2016/entries/aerospace-and-defense/7082

"The key to the innovation use of a bell-shaped spanload rather
than the conventional elliptical spanload. To achieve the bell spanload,
designers used a twisted and sharply tapered wing, with 11 percent less wing
area than the comparable elliptical spanload wing. The new wing has 22 percent
more span and 11 percent less area, resulting in an immediate 12.5 percent
efficiency gain."

http://contest.techbriefs.com/2016/entries/aerospace-and-defense/7082