Isn't there some patent on winglets and maybe Boeing is trying to circumvent it?
http://www.reuters.com/article/2011/12/02/airbus-wingtip-idUSN1E7B10U220111202 _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
