FM Erie Built B UnitThese are N scale 3D printable files for the Fairbanks Morse Erie Built B Unit one of the most distinctive and least modeled passenger locomotive types in North American railroad history. Designed to fit on a Kato PB unit frame. The Erie Built was Fairbanks Morse's entry into the postwar passenger locomotive market, produced between 1945 and 1949 in partnership with the General Electric Company at GE's Erie, Pennsylvania plant hence the name.