Yes, Northwest had to go out and get a few old DC3s, for a couple of years, and also rather more DC4s, definitely not part of the plan, all at a time when most other carriers couldn't really find anyone to sell these off to. This was in addition to them stocking up on both Constellations and DC6Bs at the same time. With the Strat as well, it was a notably diverse fleet for a while.