I am showing you the policies. that is impacting both public and private business.I made assumptions based on the articles I cited. You may ask the Russian planners behind this program for why the MC-21 seem not entering series production sooner. What civilian aircrafts with latest avionics are you talking about ?
Taking time for replacements is alright. Never have i made that an issue either.
You seem to miss the subject of discussion often. You linked an article regarding Automotive combustion engine while we are talking about Civilian aircrafts. Very odd replies from you. And there was no attempt from me to compare C919 and MC21. Strange.
you are assuming that they started this MS21 project without investing in avionics?. when it is fundamentally contrary to all Russians decisions. They could have easily re engined TU-204SM and be done with cheap.
They are the risk taker from start to make planes that exceed specifications of latest Airbus. with cabin width that exceed A-321XLR.