HONG KONG -- China and Japan both officially kicked off their passenger jet projects in 2008. So why, 15 years and millions of dollars later, is only one of them in the air?
Large domestic market helped give Chinese jet maker edge over Mitsubishi

COMAC's C919 passenger jet, top, entered commercial service on May 28, while Mitsubishi Heavy Industry's Spacejet never got off the ground. (Source phots by AP, Reuters and Kyodo)
HONG KONG -- China and Japan both officially kicked off their passenger jet projects in 2008. So why, 15 years and millions of dollars later, is only one of them in the air?