The British Rail Class 144 "Pacer" diesel multiple units (DMUs) were built by BREL Derby from 1986-1987. A total of 23 units were built, replacing many of the earlier first-generation "Heritage" DMUs.[citation needed]
The British Rail Class 144 "Pacer" diesel multiple units (DMUs) were built by BREL Derby from 1986-1987. A total of 23 units were built, replacing many of the earlier first-generation "Heritage" DMUs.[citation needed]
The British Rail Class 144 "Pacer" diesel multiple units (DMUs) were built by BREL Derby from 1986-1987. A total of 23 units were built, replacing many of the earlier first-generation "Heritage" DMUs.[citation needed]