The 71.1m wing would also push the 777 from ICAO Code E airport classification to Code F standards, the same category occupied by the 747-8 and A380. Under study is a revival of the original 777-200 wing-fold concept, which would have tilted upward a 6.9m (22ft 6in) portion of the wing that included the outer two leading edge slats and outboard aileron to accommodate McDonnell Douglas DC-10-sized gates.
Boeing's current concept scales back the weight and complexity of the design by folding only the raked wingtip, which is understood to be a 3.4m (11ft) portion of the wing, and does not house any wing control surfaces.
In short, Boeing would maintain Code E standards on the ramp and taxiway, up to 65m (213ft 4in), in line with today's 777-300ER, and shift to a Code F classification upon entering the runway.