striker,
I very much doubt there are any CRJ spares interchangeable with C-Series.
Willie,
Yes, I saw the video--the DOCs were calculated using $90 bbl oil, now it's a third of that reducing the advantage. The real problem is the capital costs which completely eliminate the DOC advantage. With doubts of the financial strength of BBD; doubts of the future of the program and resale values, the financial markets are aggressively depreciating C-series residual values, raising the capital cost of one to twice a B737 or A320. Plus loads of off-lease A & B planes are depressing that market.
It's a hard sell, if you understand the finances rather than wishful thinking. And, believe me, I'd love to see it wildly successful. It's technically marvelous, better than expected.
GF