Boeing unveils new 777 'ecoDemonstrator' test jet

US aircraft maker Boeing has just revealed its new 2022 ecoDemonstrator plane -- a converted, 20-year-old 777-200ER that will be tasked with testing new technologies aimed at making air travel more sustainable and safer.

Boeing unveils new 777 'ecoDemonstrator' test jet
US aircraft maker Boeing has just revealed its new 2022 ecoDemonstrator plane -- a converted, 20-year-old 777-200ER that will be tasked with testing new technologies aimed at making air travel more sustainable and safer.