In June 1989,
Australian National awarded a contract for 14
Dash 8 locomotives to
A Goninan & Co with the first delivered in July 1990. Even though they were the most powerful locomotives to have operated by Australian National, they were fitted with lightweight traction motors which reduced their tractive effort by 33% compared to the preceding
DL class locomotives. They were ordered for use on passenger and fast freight services and geared for a top speed of 140 km/h. They regularly hauled
The Ghan and
Indian Pacific until replaced by
CLP class locomotives in 1994. They were transferred to
National Rail, however, following the delivery of the
NR class, 13 were returned to Australian National and by November 1997 were stored at
Islington Railway Workshops. The 14th had been destroyed in an accident at Mount Christie in February 1997. Six were briefly hired to
Australian Southern Railroad in late 1997. In November 1998, the remaining 13 were sold to
Chicago Freight Car Leasing Australia (later RailFirst Asset Management). All were overhauled by
A Goninan & Co,
Bassendean, during which they were re-geared, reducing their top speed to 125 km/h, but resulting in their tractive effort increasing by 19%. All were repainted into Chicago Freight Car Leasing Australia's yellow, blue and silver livery and named after famous Australian racehorses. They have been leased to a variety of operators and have run in all mainland states. ==Status table==