In total , NUMBER@1 locomotives in the class were built by MISC@1 between NUMBER@2 and NUMBER@3 , the large number being in part because of the failure of other early designs in the same power range to provide reliable locomotives .

NUMBER@1 locomotives in the class were built by MISC@1 between NUMBER@2 and NUMBER@3 . The large number was partly to do with the failure of other early designs in the same power range , and reliable locomotives veing needed .
