On Friday, the first Chinese-built passenger jet C919 made its maiden flight, widely seen as a milestone for the Chinese aviation industry. The aircraft is expected to compete with the updated Airbus A320 and the new-generation Boeing B737 currently dominating the market. But it won’t start commercial operations till sometime between 2020 and 2022. How can it challenge the duopoly of passenger jet manufacturing? Turn to CGTN to learn more.