What's the real benefit of winglets on a Boeing 737?

Edited by James E. Swickard August 01, 2003
What's the real benefit of winglets on a Boeing 737? According to Aviation Partners Boeing, blended winglets can deliver fuel savings of up to 4.5 percent. For a B737-300 flying 2,900 hours per year with 1.5-hour stage lengths, APBoeing's Mike Marino says the savings would amount to more than 65,000...

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