New South Wales 90 class locomotive
Encyclopedia
The 90 class are a class of heavy mainline diesel locomotive introduced from 1994 in the state of New South Wales
Rail transport in New South Wales
The Australian state of New South Wales has an extensive network of railways, which were integral to the growth and development of the state. The vast majority of railway lines were government built and operated, but there were also several private railways, some of which operate to this...

. They are the heaviest locomotives on the network and are only used on Hunter Valley
Hunter Valley
The Hunter Region, more commonly known as the Hunter Valley, is a region of New South Wales, Australia, extending from approximately to north of Sydney with an approximate population of 645,395 people. Most of the population of the Hunter Region lives within of the coast, with 55% of the entire...

 coal workings.

Purchased under a Ready Power contract like the 82 class, the first batch of 90 class were built by General Motors
General Motors
General Motors Company , commonly known as GM, formerly incorporated as General Motors Corporation, is an American multinational automotive corporation headquartered in Detroit, Michigan and the world's second-largest automaker in 2010...

' Electro-Motive Division (EMD), London, Ontario
London, Ontario
London is a city in Southwestern Ontario, Canada, situated along the Quebec City – Windsor Corridor. The city has a population of 352,395, and the metropolitan area has a population of 457,720, according to the 2006 Canadian census; the metro population in 2009 was estimated at 489,274. The city...

, Canada
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 (9001–9031) in 1994, while new locomotives were obtained in 2006, built by EDI Rail
EDi Rail
Downer Rail is a rail company based in Australia. Formed by a merger of Walkers and Clyde Engineering, it is currently a division of Downer EDi...

 Cardiff, New South Wales
Cardiff, New South Wales
Cardiff is a suburb of Newcastle, New South Wales, Australia, located west-southwest of Newcastle's central business district. It is part of the City of Lake Macquarie local government area....

 (9032–9035).

Despite two manufacturers of the 90 class, the specifications remain the same. They have EMD 16-710G3A
EMD 710
The EMD 710 is a line of diesel engines built by Electro-Motive Diesel . The 710 series largely replaced the earlier EMD 645 series. The EMD 710 is a large two-stroke diesel engine that has a displacement per cylinder. Since its introduction, EMD has continually upgraded the 710G diesel engine...

 sixteen cylinder, two-stroke engines, rated at 3,030 kW (4,060 hp), have a mass of 165 t, have Co-Co wheel arrangement and have a maximum speed of 115 km/h. The EMD 710 series was the last major development of large two-stroke engines by the former Electro-Motive Division of the General Motors Corporation. More recent engine development has focused on a new four stroke design.

90 Class locomotives are of a single ended cab design, with an almost identical cab layout to the 82 Class. The 90 class are restricted to coal haulage in the Hunter Valley
Hunter Valley
The Hunter Region, more commonly known as the Hunter Valley, is a region of New South Wales, Australia, extending from approximately to north of Sydney with an approximate population of 645,395 people. Most of the population of the Hunter Region lives within of the coast, with 55% of the entire...

 due to their size and weight. They are usually found to be working in threes, but are also found working with 81 class
New South Wales 81 class locomotive
The 81 class is a class of mainline diesel locomotive in the state of New South Wales. Introduced between 1982 and 1984, the 81 Class is currently the largest class of locomotive in New South Wales, and for many years has been the backbone of the fleet...

 82 class
New South Wales 82 class locomotive
The 82 class is a class of mainline diesel locomotive introduced in 1994 in the state of New South Wales. 58 were ordered by then freight operator Freightrail which latter became FreightCorp, and were completed under a Ready Power contract, by Clyde Engineering, Mittagong, New South Wales...

 92 Class
New South Wales 92 class locomotive
The C44aci is a model of Australian heavy duty diesel electric locomotive designed and built by UGL Rail and operated by a number of local rail freight operators...

 and G Class
V/Line G class
The V/Line G class are a mainline diesel electric locomotives built by Clyde Engineering from 1984, the last of 33 locomotives entering service in December 1989...

 locomotives which now frequent the Hunter Valley on Pacific National coal workings.

A large number of the class are named after Olympic sportsman from past Games. 9001–9031 are in the Freightcorp Livery, with Pacific National
Pacific National
Pacific National is one of Australia's largest private rail freight businesses. Originally a joint venture between Patrick Corporation and Toll Holdings; it is now a wholly owned subsidiary of Asciano Limited following the restructure of Toll Holdings....

 decals over the Freightcorp logo, while the 4 which were built by EDI have the Pacific National
Pacific National
Pacific National is one of Australia's largest private rail freight businesses. Originally a joint venture between Patrick Corporation and Toll Holdings; it is now a wholly owned subsidiary of Asciano Limited following the restructure of Toll Holdings....

 livery.

Operations

Restricted to the Hunter Valley
Hunter Valley
The Hunter Region, more commonly known as the Hunter Valley, is a region of New South Wales, Australia, extending from approximately to north of Sydney with an approximate population of 645,395 people. Most of the population of the Hunter Region lives within of the coast, with 55% of the entire...

 the 90 class are used on the Main Northern line as far as Muswellbrook. They did operate to dartbrook mine located between Muswellbrook and Aberdeen before that mine closed. From Muswellbrook they operate as far as Ulan on the Ulan
Ulan
-Places:*Ulan, New South Wales, a town in Australia*Ulan, Qinghai, a county in Qinghai Province, China*Ulan-Ude, Russia, the capital city of the Republic of Buryatia, Russia-Military:...

line.

90 class have worked at times due to loco shortage, general freight but you would most likey count them on one hand and then did not work outside the hunter valley

Out of the Hunter

The 90 class have rarely worked outside of the Hunter Valley and worked anything other than coal trains. Members of the class have visited the Wheel lathe at DELEC and one was on display at Central Station for the 100th Anniversary of Clyde Engineering in 1998.

Table

Locomotive Entered Service Named Livery Status
9001 Example Example Freight Rail Blue In Service
9002 Example Example Freight Rail Blue In Service
9003 Example Example Freight Rail Blue In Service
9004 Example Example Freight Rail Blue In Service
9005 Example Example Freight Rail Blue In Service
9006 Example Example Freight Rail Blue In Service
9007 Example Example Freight Rail Blue In Service
9008 Example Example Freight Rail Blue In Service
9009 Example Example Freight Rail Blue In Service
9010 Example Example Freight Rail Blue In Service
9011 Example Example Freight Rail Blue In Service
9012 Example Example Freight Rail Blue In Service
9013 Example Example Freight Rail Blue In Service
9014 Example Example Freight Rail Blue In Service
9015 Example Example Freight Rail Blue In Service
9016 Example Example Freight Rail Blue In Service
9017 Example Example Freight Rail Blue In Service
9018 Example Example Freight Rail Blue In Service
9019 Example Example Freight Rail Blue In Service
9020 Example Example Freight Rail Blue In Service
9021 Example Example Freight Rail Blue In Service
9022 Example Example Freight Rail Blue In Service
9023 Example Example Freight Rail Blue In Service
9024 Example Example Freight Rail Blue In Service
9025 Example Example Freight Rail Blue In Service
9026 Example Example Freight Rail Blue In Service
9027 Example Example Freight Rail Blue In Service
9028 Example Example Freight Rail Blue In Service
9029 Example Example Freight Rail Blue In Service
9030 Example Example Freight Rail Blue In Service
9031 Example Example Freight Rail Blue In Service
9032 Example Not Named Pacific National Blue/(Yellow Large Logo) In Service
9033 Example Not Named Pacific National Blue/(Yellow Large Logo) In Service
9034 Example Not Named Pacific National Blue/(Yellow Large Logo) In Service
9035 Example Not Named Pacific National Blue/(Yellow Large Logo) In Service
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