Boeing has unveiled a new plane for its 'ecoDemonstrator' program — a modified 787. See all 10 of the company's testbed jets.

• Boeing has unveiled its 2023 ecoDemonstrator program, which includes a new "Explorer" aircraft.
• The first "Explorer" is a Boeing 787-10 that will fly to countries in Asia to test better route coordination.
• The 787 joins Boeing's fleet of 10 ecoDemonstrators, like the flagship 777-200ER and the Alaska Airlines 737 MAX 9.

Boeing announced a new addition to its fleet of ecoDemonstrator aircraft on Thursday — a Boeing 787-10 Dreamliner.