Willie, just because a program is beyond break-even, that does NOT mean sales are "mostly profit". It just means that they're no longer losing money on each sale.
And those numbers Bombardier provided are mostly a lie. Why? Because manufacturer announcements are based on "list price", but we know no one actually buys at list price!
Bombardier won't tell you: what was the discount from list? What is the actual margin on revenue?
Suppose we assume industry-standard 50% discount and a very generous 15% margin, that means even if all $651m in options are exercised, Bombardier's total profit from the entire deal is only $50 million, spread over several years.
That's nothing. Bombardier is burning more than $80 million per month on the CSeries. So even Bombardier closes similar-sized CRJ/BBJ deals each and every month for the next three years, that still won't come close to covering the CSeries program costs.
That's how big of a hole Bombardier have dug themselves in!