Boeing has shown airlines a blueprint for the world's longest-range passenger jet, adding spice to a long-awaited revamp of its 777 wide-body jet.
Boeing last week launched a race against Airbus for sales of the newest long-haul jets by announcing it had begun selling an upgraded aircraft family code-named 777X.
First seen in the 1990s, the 777 cornered the market for large twin-engine aircraft able to fly routes previously only possible with four engines, earning it the nickname "mini-jumbo."
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