First question: anybody here know the meaning of "80 for 80"?

Second question: anybody know how many seats NWA's DC-9-10/15s had?

According to information available on APC....

A 2nd year Mesaba CR9 FO would earn 49% of a 2nd year DC-9 FO's hourly payrate at Northwest, while a 2nd year Compass E175 FO would earn 60% of the mainline hourly rate.

A 12th year Mesaba CR9 captain will earn 66% of a 12th year DC-9 captain's hourly rate at Northwest, while a 12th year Compass E175 CA (which does not exist) would earn 68.5% of the mainline hourly rate.

I know that the 900s are basically Avro replacements for Mesaba. I also know that I want my regional airline to grow and that likely won't happen without larger aircraft. Even knowing that, I cringe every time I see a 900 or E175...because I know that we (as regional pilots) are replacing mainline jobs, flying "RJs" the same size as former mainline planes, on mainline routes, for a mere fraction of mainline pay.