14 MAY 2012
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With total 737 sales edging towards the 10,000 point (9,375 orders and 7,010 delivered) Boeing is pressing on with the development of the latest incarnation, the MAX.
Called the Advanced Technology Winglet, a new wingtip has been announced which will offer up to an additional 1.5% fuel-burn reduction. This performance enhancement is on top of the 10-12% improvement already offered on the new-engine variant.
Compared to today's wingtip technology, which provides up to a 4% fuel-burn advantage at long ranges, the Advanced Technology winglet provides a total fuel-burn improvement of up to 5.5% on the same sectors.
Boeing aerodynamicists used advanced computational fluid dynamics to combine rake tip technology with a dual feather winglet concept into one advanced treatment for the wings of the 737 MAX. The Advanced Technology winglet fits within today's airport gate constraints while providing more effective span thereby reducing drag. Ongoing 737 MAX testing in the wind tunnel validated the new concept on the aircraft.
Boeing says that airlines operating the 737 MAX now will gain an 18% fuel-burn per-seat improvement over today's A320. To date, the 737 MAX has more than 1,000 orders and commitments from 16 customers worldwide. www.boeing.com/commercial
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