The Composite Wing Centre (CWC) building is expected to span more than 27 acres, and will sit alongside the widebody plant where the 777X will be assembled. Each wing is 114 feet long and 23 feet wide.

The new facility will contain three of the world’s largest autoclaves, or pressurised ovens that are intended for curing the jet’s carbon-composite wings. Replacing the conventional aluminium construction process used for the current 777, each autoclave will be big enough to fit two 737 fuselages inside.

To date, the 777X has accumulated 320 orders and commitments. Two models will comprise the 777X family – the 777-8X, with approximately 350 seats and a range capability of more than 9,300 nautical miles; and the 777-9X, with approximately 400 seats and a range of more than 8,200 nautical miles.