Hawaiian may be converting to an all-Airbus long-haul fleet in a few years, but apparently it is worthwhile for the modify at least some of their Boeing 767-300 aircraft with winglets. The airline announced yesterday that is was ordering eight pairs of them, with options for seven more. Installations will begin September next year and be completed some time in 2010. I really wish the press release would include a rendering of what the planes will look like, especially what Hawaiian will paint on them, but sadly this is not the case. Here’s a link to a picture of the first 767 with winglets, though. 
The press release states that the winglets will save about 300,000 gallons of fuel per year per aircraft. The latest price (that website updates again tomorrow) I can find for New York Harbor Jet Fuel is $3.189/gallon. That’s $956,700 in savings for each aircraft annually, or $7,653,600 for all eight aircraft.
Hawaiian also says that the winglets can improve takeoff performance, reduce engine maintenance, and increase the range, and increase the payload.
Lots of the American airlines are using winglets now – AirTran, American, Contiental, Delta, Northwest, Southwest, United, US Airways, and others.
Anyway, seems like a good move for Hawaiian.
all airbus? I didn’t know they’d replace their 717s too!?
Oliver, I apologize, I should have meant the long-haul fleet, it’s now corrected. Thanks for pointing that out!