Actually, it is B6 that has been pushing Airbus to get winglets on the A320. As it is, the A320 Family doesn't have as much range as the 737NGs and that delta only expands with the winglets. This will close the gap a bit and also allow B6 to stop taking weight restrictions on the BUR-JFK route. In a message dated 2/15/2006 1:10:23 PM Central Standard Time, Niraj.Agarwalla@xxxxxxx writes: I'm surprised didn't offer winglets on its A320 line sooner given the ever upward rise in oil prices. I know one JetBlue aircraft will be involved in the testing, at least.