folks, maybe s/o has an idea: why aren't any 767, especially those operated on long hauls, equipped with winglets, as a wide number of 757 got those, eg flying over the big pond (CO,US,DL,NW , all those opearte 757 with winglets).
I know that especially on hot days the 767 can not operate n/s from the US westcoast into central Europe, as I have been on a 767 DE flight last summer from LAS to FRA (had to refuel @ GANDER), when taking off at LAS it was 100+ Fahrenheit. Could winglets increase the range? Or is it "just" the mtow which does not allow such nonstops ? Thanks, Chris