Commonwealth Railways GM class
|Commonwealth Railways GM class|
|Builder||Clyde Engineering, Granville|
|Model||Electro-Motive Diesel A7, later model A16C|
|UIC classification||GM1-11 A1A-A1A
|Gauge||1,435 mm (4 ft 8 1⁄2 in)|
|Power output||GM1-11 1119kW, GM12-47 1305kW|
|Number in class||47|
|Preserved||GM1, GM2, GM36|
|Current owner||Genesee & Wyoming Australia
Southern Shorthaul Railroad
|Disposition||11 in service, 3 preserved, 7 stored, 26 scrapped|
The GM class are a class of diesel locomotives built by Clyde Engineering, Granville for the Commonwealth Railways in several batches between 1951 and 1967. As at January 2014 some remain in service with Genesee & Wyoming Australia and Southern Shorthaul Railroad.
The design was based on the Electro-Motive Diesel EMD F7 locomotive. The first 11 were delivered with EMD 16-567B, 1119kW engines and four powered axles with the remainder having 16-567C, 1305kW engines and six powered axles. The final 11 were fitted with dynamic braking.
Delivered to operate on the Trans-Australian Railway, the first entered service in September 1951. Further orders saw 47 in service by December 1967. They operated on all of Commonwealth Railways's standard gauge lines including those to Broken Hill, Alice Springs and Adelaide when converted to standard gauge in 1970, 1980 and 1983 respectively.
In July 1975 all were included in the transfer of Commonwealth Railways to Australian National. In 1979 a few operated to Lithgow, New South Wales on trials, while in 1985 three were hired to V/Line during a period of motive power shortage.
Apart from one destroyed in an accident in 1985, withdrawals began in 1988. GM1 was placed on a plinth in Port Augusta, GM2 was donated to the National Rail Museum at Port Adelaide and GM3 to Clyde Engineering, Kelso. By October 1994 only 15 remained in service. A locomotive shortage saw Australian Southern Railroad return GM1 to service in December 1997.
In 1998 Great Northern Rail Services purchased 12 from Australian Southern Railroad. Most were scrapped for parts with only three returning to service seeing use in Melbourne and Sydney. Following Great Northern ceasing operations in 2003, these were sold to Chicago Freight Car Leasing Australia before being resold to Southern Shorthaul Railroad.
In November 2010 the Department for Infrastructure & Transport placed GM1 in the custody of Rail Heritage WA. In May 2012 Clyde Engineering sold GM3 to Southern Shorthaul Railroad and it was transferred to their Lithgow State Mine Heritage Park & Railway workshop for overhaul.
As at January 2014 the remaining operational examples are used by Genesee & Wyoming Australia on freight services in South Australia and Southern Shorthaul Railroad on infrastructure trains in New South Wales.
|Locomotive||Entered Service||Current Owner||Livery||Status|
|GM1||September 1951||Rail Heritage WA||CR Maroon/Silver||Stored, Dry Creek|
|GM2||November 1951||National Railway Museum, Port Adelaide||CR Maroon/Silver||Static Display|
|GM3||December 1951||Southern Shorthaul Railroad||CR Maroon/Silver||Overhaul, Lithgow State Mine Heritage Park & Railway|
|GM10||June 1952||Southern Shorthaul Railroad||SSR Yellow||Operational|
|GM12||October 1955||Greentrains||AN Green||Stored, North Bendigo|
|GM19||May 1957||Railpower||AN Green||Overhaul, Goulburn Roundhouse|
|GM22||July 1962||Southern Shorthaul Railroad||SSR Yellow||Operational|
|GM25||October 1962||Braidies Tavern Bendigo||AN Green||Stored|
|GM27||January 1963||Southern Shorthaul Railroad||SSR Yellow||Operational|
|GM28||February 1963||Seymour Railway Heritage Centre||CR Maroon/Silver||Stored, Seymour|
|GM30||December 1964||-||Undercoat||Scrapped, cab preserved|
|GM32||January 1965||Genesee & Wyoming Australia||AN Green||Stored, Dry Creek|
|GM34||April 1965||Genesee & Wyoming Australia||AN Green||Stored, Dry Creek|
|GM36||May 1966||Seymour Railway Heritage Centre||CR Maroon/Silver||Stored|
|GM37||June 1966||Genesee & Wyoming Australia||GW Orange||Operational|
|GM38||June 1966||Genesee & Wyoming Australia||AN Green||Operational|
|GM40||January 1967||Genesee & Wyoming Australia||AN Green||Operational|
|GM41||February 1967||-||-||Scrapped, cab preserved|
|GM42||February 1967||Genesee & Wyoming Australia||GW Orange||Operational|
|GM43||March 1967||Genesee & Wyoming Australia||GW Orange||Operational|
|GM44||April 1967||Genesee & Wyoming Australia||GW Orange||Stored|
|GM45||May 1967||Genesee & Wyoming Australia||GW Orange||Operational|
|GM46||June 1967||Genesee & Wyoming Australia||AN Green||Operational|
|GM47||December 1967||Genesee & Wyoming Australia||GW Orange||Operational|
- GM1-class A1A-A1A diesel-electric locomotive No.2 National Railway Museum
- Oberg, Leon (1980). Diesel Locomotives of Australia. Sydney: AH & AW Reed. p. 283. ISBN 0 589 50211 5.
- "Victorian Standard Gauge Report" Railway Digest July 1985 Page 201
- "GM3" Railway Digest November 1990 page 395
- "South Australian Motive Power Update" Railway Digest October 1994 page 14
- "SA Snapshot" Railway Digest February 1998 page 31
- "Great Northern Puts Faith in GM Chant" Railway Digest November 1998 page 16
- Issue 104/10 West Australian Railscene e-mag 11 October 2010
- GM1 Rail Heritage WA 2 November 2010
- Standard Gauge GM Chris' Commonwealth Railway Pages
- GM Class (GM1 to GM11) Railpage
- GM Class (GM12 to GM47) Railpage
- GM Class Vicsig