Boeing’s ecoDemonstrator aircraft, a 787-10 Dreamliner, has been delivered to Ethiad Airways after completing a series of flight tests that looked at noise, airspace routing and other technologies.

The four weeks of flight testing began in late August with noise testing in Glasgow, Montana and concluded with a final flight from Seattle to Boeing’s delivery center in North Charleston, South Carolina that used a 50/50 blend of biofuel and jet fuel.

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