RE:BT145, everything is evolving very rapidly. Most experts and industry CEOs believe its going to take a while for air travel to recover.
Alstom merger should be called off and Bombardier resume their original business model - Planes and trains - there's a reason neither General Dynamics or Textron are strictly in business jets - too cyclical.
What they need is $5-6B long term loans at 2-3% ($1B CDPQ, $2B guaranteed by IQ, $3B Ottawa)(still much higher interest than Alstom pays), for CDPQ to take straight shares in BT (which is what they were planning to do with Alstom anyway not to mention the additional investment of 700M Euros) - no more 15%.
Use the proceeds plus cash on hand/asset sale proceeds to pay back all that expensive debt.
Interest cost goes down to $150M instead of $900M ($650M + $250M CDPQ 15%).