but its massive compared to civilian narrow bodies released in similar specs by other aviation companies that isn't the big two. prior to airbus aquisition, bombardier practically had to sell their C-series jets at massive loss for market triggering the Boeing lawsuit. Embraer as well didn't get as many initial orders for their jets as COMAC. I say COMAC already has a big boost from domestic support with its initial orders. As Latenlazy mentioned, 500 orders is completely fine. eventually domestic airlines (and maybe even some international airlines) will ramp up the order (either directly or through increased leaser demand) as COMAC gets their support infrastructure setup, C919 gets their certifications set and proliferated (certification in other nations are sure to come since CAAC has type certificate sharing agreements with many nations), and their operational history gets established (maybe even initial issues showing up getting solved)