GE9X engine for the Boeing 777X aircraft "220V AC Cooling Fan" will be used more than any GE engine widebody in service less, composite fan blades thinner. To this end, GE is designing a new generation of carbon fiber composite material using a new type of composite fan blades. "Since the design of new composite materials for GE GEnx engine" 220V AC Cooling Fan"blade to now have ten years time," general manager GE90 / GE9X engine project Mill Bill Graham said: "The carbon fiber composite material in this decade progress, which makes GE's engineers to design a thinner GE9X fan blades, its strength and composite materials we currently use "220V AC Cooling Fan" blade quite. fewer, thinner blades will enhance air flow and fan more lighter, more efficient, and help to improve the overall GE9X engine performance and fuel efficiency."