Next-Generation 737 Production Winglets

Benefits

Depending on the airplane, its cargo, the airline's routes and other factors, winglets have the potential to:

Lower operating costs by reducing block fuel burn by 3.5 to 4.0 percent on missions greater than 1,000 nautical miles
Reduce engine maintenance costs
Increase range up to 130 nautical miles
Improve payload capability by up to 6,000 pounds (.5 to 3 metric tons)
Improve takeoff performance and obstacle clearance
Increase optimum cruise altitude capability
Reduce community noise by .5 to .7 EPNdB (Effective Perceived Noise Level in Decibels) on takeoff and slight improvement on approach
Lower emissions through lower cruise thrust