[QUOTE=Airbubba;10774551]Yes, a combi is something else. Very few have been operated in the U.S. as far as I know. There are a couple of civilian registered B-734 combis currently used to carry nukes and commandos for the Department of Energy. Alaska Airlines operated B-734 combis on its Milk Run route ANC-SEA until 2017.
Canadian North operates several 737 Combis according to their website. I think there are others as well but the airlines serving Northern Canada change a lot. Pretty common for Northern communities at one time.