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Boeing Examining 777-8LX Concept
From my AIAA news feed this morning (2/14/2012) - emphasis added
Flightglobal Pro (2/14, Ostrower) reports, "Boeing is exploring an ultra long-range replacement of the 777-200LR, conceptually dubbed the 777-8LX" that is "estimated to be a 14% to 16% improvement over the 777-300ER, and the extended range may, for the first time, open the prospect of profitably operating flights between Sydney and London without a 'kangaroo' stop in Southeast Asia." The article notes how this model would have several "common" elements with other planes like the 787-9X. Furthermore, the plane "is understood to be a lower priority concept for Boeing as the heart of the market remains focused on the 777-200ER and 777-300ER-sized aircraft to respond to the A350-900 and -1000."
London to Sydney–I stretched out a great circle route on my office globe. That’sonly about 15 degreesfrom reaching the opposite side of the planet– pretty amazing to contemplate, but a long time to sit in an airplane.
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… still thinking about it, 5/4/2013 - per this report from Yahoo News - http://news.yahoo.com/boeing-plans-build-worlds-longest-range-passenger-jet-063257587.html
But talks between Boeing and potential buyers have also generated interest in a 777-8X that would be a successor to the 777-200LR, the industry’s current distance champion, with a range of more than 9,300 nautical miles, people briefed on the talks said. The 777-8X, boasting a range of 9,500 nautical miles, would be designed for some of the world’s longest trips such as from the Middle East to South America. “They are offering an ultra-long range aircraft in the 777-8X,” said an industry source briefed on the plans. “It’ll be the longest range aircraft in the business.”