I come out of SDF about once a month. It is the headquarters of Republic, the owner of Chautauqua, and the unpainted aircraft with the blue tails are there quite a lot of the time.
At one time they would generally be found at the US gates (after DL ditched them) but maybe US figured that their service was too poor to put their fight numbers on
and got rid of them and sent them over to the other side for CO to abuse their passengers with.
