The Class 66 were one of several newly designed locomotive classes, the so-called
Neubauloks, built for the DB after the
Second World War. The 66s had a top speed of 100 km/h and an
axle load of only 15 tonnes which made them ideally suited to such duties. They were intended to replace the former state railway (
Länderbahn) locomotives of DRG classes 38.10 (ex-
Prussian P 8), 78 (ex-
Prussian T 18) and 93 (ex-
Prussian T 14). However increasing competition from
diesel locomotives meant that no more engines were built after the two prototypes, even though they fully met all expectations and were a very successful design. The Class 66 was the penultimate locomotive class to be built as part of the DB's
Neubaulok construction programme. ==Design==