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Sunday, December 26, 2010

New Boeing 777 Raked Wing Tips Improve Fuel Efficiency, Good for the Environment

EVERETT, Wash., -- Raked wing tips that were installed this week onto the newest Boeing 777, the 777-300ER (extended range) jetliner, not only improve the bottom line they're good for the environment.

The 6.5-foot (1.98 meter) highly tapered wing-tip extensions are being added to both of Boeing's 777 long-range jetliners, the 777-300ER and 777-200LR (longer-range) to improve the airplane's performance. The wing tips help reduce takeoff field length, and increase fuel efficiency and climb performance. Faster climb performance can mean quieter neighborhoods.

Through the use of raked wing tips, the 777-300ER airplane is expected to achieve a 2 percent fuel efficiency improvement, saving as much as $140,000 on fuel costs per year per airplane.

This equates to a savings of 1.3 million pounds of fuel per year per airplane, and 3.9 million less pounds of global warming carbon dioxide (CO2) being emitted into the environment. For every pound of fuel conserved, three fewer pounds of carbon dioxide are generated. The bottom line: the new raked wing tips help provide a more economical, cleaner and quieter airplane for the future.

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Boeing 777-300ER (Put Together Quickly)

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