So I read that Boeing is going to create a 737-300 winglets and name it the 300SP, and have the option for existing aircraft to be updated.
I don't quite get it though. These winglets are supposed to save moeny for long flights, right?
Delta (and Shuttle), with the 738, said no to winglets because they didn't utilize their planes for long enough ranges for enough savings that the winglets offer.
I see by looking at stats, the the -300 seems to have a bigger range than the -800, but does any airline really fly big distances with the -300 that they would get winglets?
I know Air Plus Comet of Spain already opted for them, but will enough airlines get these things to make all the effort worth it for Boeing to offer?