Boeing has completed a series of rejected take-off tests with its new 777X at Paine Field at Everett in Washington State. The 777X made numerous runs down the runway throughout the bleak day ahead of the scheduled first flight at 10 am on Friday, January 24th. The schedule is for a five-hour first flight with a 10 am take-off and a 3 pm touch down. The program has been delayed by 10-months due to issues with the GE engine which turned up in the engine's flight test program. A fix was developed and GE is now delivering upgraded engines to Boeing. SEE our superb photo galleries The aircraft combines the best features of the current 777 with a longer and wider internal fuselage, new engine and the composite wing design from the Boeing 787. It also features 20 per cent larger windows and has lower pressurization altitude to reduce jet lag. The 777-9X seats more than 400 passengers, depending on an airline’s configuration choices. With a range of more than 8,200 nautical miles (15,185 km), the aircraft will have the lowest operating cost per seat of any commercial aircraft says, Boeing. The second member of the family, the 777-8X, will be the most flexible jet in the world claims Boeing. The aircraft will seat 350 passengers and offer a range capability of more than 9,300 nautical miles (17,220 km).