Why is the DC-9 in production in BW2?

[winstonp]

It's 2017...

The 737 Classic has stopped production. The MAX is being made. But the DC-9 is in production, and has orders for it. No, not the MD80 or 90. The ORIGINAL DC9.

[gazzz0x2z]

Because players nevers topped ordering them new. It happens. It's part of the dynamic of the game, and it's way fun.