Has Mitsubishi really delayed the NRJ/Spacejet? Unfortunately yes.
But the latest is certification within this fiscal year for the MR9, or by March 2021.https://finance.yahoo.com/amphtml/news/ ... 00105.html
So while Mitsubishi deserves negative comments fir their past performance, the outright dismissal seems misplaced.
The above link notes they are finally getting a new chief engineer. A great chief engineer can turn around a program. I'm not saying the deadline will be met, but it looks like Mitsubishi will make it to market.
After flying with customers for 18+ months, then I expect new MR9 orders.
Mitsubishi has stated they will still develop the M100. It us a question of when, not if.
Now I'm posting as a user, but the E-jet/MRJ debate on scope has become old. I am not aware of any discussion to change scope among those who could influence scope. As an engineer, I design to requirements. The requirements are:
1. 76 pax
2. At least 1400nm still air range with reserves. (My best guess after reading a bunch on this topic).
3. Enough cabin volume for domestic first class and some Y+.
4. Enough baggage volume for the winter peak season.
5. Under the 86,000 lb MTOW.
7. Lower fuel burn than E-175 or CR9.
8. Lower maintenance costs (mostly engine, but airframe also).
9. Quieter cabin (not much, engines are enough).
10. 99.6%+ dispatch reliability
IMHO, Mitsubishi will not get new firm orders until they prove the MR9 has met efficiency and dispatch reliability.
I believe this plane will happen.
Within its range, it has every chance of being the most efficient.
Winter is coming.