Boeing is developing a new series of aircraft meant to compete with the Airbus A350. This series, the 777X has two variants, the 777-8X and the 777-9X. Both of these will have brand new engines, composite wings and the newest fly by wire from the Boeing 787. So far, the biggest order for this aircraft is Emirates with 150 overall orders. 115 777-9X's and 35 777-8X's. Both planes have an incredible wing 71ft long. So long it has to fold at the ends to fit into 777 gates. The cabin is also a whole 1/2 meter wider than previous generations. The 777-8X is built for extra long range travel, 9,300 miles. The 777-9x has a longer fuselage and can hold upto 420 people.