See also: Bombardier Voyager family. The Class 221 Super Voyager is a class of British diesel-electric multiple-unit express trains built in Bruges, Belgium, by Bombardier Transportation between 2001 and 2002, entering service on 12 April 2002.he Class 221 are similar to the Class 220 Voyager units, but they were built with a tilting mechanism enabling up to six degrees of tilt to allow higher speeds on curved tracks, most have 5 coaches, and they have a different bogie design. They have a maximum speed of 125 mph (200 km/h).