China is on a mission to break up the Airbus-Boeing duopoly and it hopes the domestically made Comac C919 will be its first big break into foreign markets. Made by the Commercial Aircraft Corporation of China (Comac), the passenger aircraft has been touted as the "dream of a nation" by Chinese President Xi Jinping. If successful, the C919 would offer airlines an alternative to the Airbus A320 and Boeing 737 families. However, there are still several hurdles Comac would need to clear before it could take on the French and American aerospace giants' dominance.