737 MAX will meet 14% block fuel burn reduction target by 2020: sources 777X fuselage material not chosen; corrosion drives Al-Li study more than weight Al-Li shaves 2-3% of empty weight off 777X fuselage ~230 empty 777 slots till 2020 will put considerable pressure on margins 36 empty slots in 2017, 68 in 2018, 71 […]
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