Several Rockford based groups sponsored special charter trips to Chicago events such as Chicago Bears, Chicago Cubs and Boston Red Sox games as well as performances of "The Ice Capades" on the "Black Hawk". On these trips, the consists could swell to as many as seven to 10 cars. During the RDC days, the usual consist consisted of three RDCs. During the mid-to-late 1970s the consist usually included 3 cars, including a food service car of one type or another. During a good part of the summer of 1977, the "Black Hawk" ran with a full dining car and dome coaches.