Queensland Railways 1270 class

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Queensland Railways 1270 class
1270 & 1281 Century - 291185 - Auchenflower.jpg
1270 and 1281 in Auchenflower
in November 1985
Type and origin
Power typeDiesel-electric
Builder English Electric, Rocklea
Build date1964–1966
Total produced30
Specifications
Configuration:
  Commonwealth Co-Co
Gauge 1,067 mm (3 ft 6 in)
Loco weight85 t (84 long tons; 94 short tons)
Fuel type Diesel
Prime mover English Electric 12SVT Mk II
RPM range450–850
Engine typefour stroke, four valves per cylinder
Aspirationturbocharged
Generator English Electric 822
Traction motors English Electric 525
(1270-1281)
English Electric 548
(1282-1299)
Cylinders 12 vee
Performance figures
Maximum speed80 km/h (50 mph)
Power output1,145 kW (1,540 hp)
Tractive effort 272 kN (61,000 lbf)
(1270-1281)
300 kN (67,000 lbf)
(1282-1299)
Career
Operators Queensland Railways
Number in class30
Numbers1270-1299
First run1964
Last run1989
Preserved1270, 1281
Disposition2 preserved, 28 scrapped

The 1270 class were a class of diesel locomotive built by English Electric, Rocklea for Queensland Railways between 1964 and 1966.

Contents

History

1281 Century at the Workshops Rail Museum, North Ipswich in October 2011 1281 Workshops Rail Museum.JPG
1281 Century at the Workshops Rail Museum, North Ipswich in October 2011

The 1270 class was devised by English Electric engineer Stan Lyons, based on the body design of North American road switcher but using the same engine and generator as the 1250 class. The first 12 units had the same English Electric 525 traction motors as the 1250 class. The remaining units had improved English Electric 548 traction motors with a slightly higher tractive effort. The final six units had dynamic brakes. [1]

In 1965, 1281 was named Century and painted in a commemorative gold and white livery to mark the centenary of the first railway in Queensland. [2]

They were used on grain trains between the Darling Downs and Brisbane, ore trains on the Mount Isa line and coal trains on the Moura line. [3] With higher power diesel locomotives becoming available in the 1970s, the 1270s were moved to general freight. [2]

Withdrawal & disposal

The 1270 class were displaced from coal traffic with the electrification of coalfields lines from 1986. [1] All were withdrawn between 1987 and 1989. Two units were retained by the Queensland Rail Heritage Division [2] [4] and the remainder were scrapped.

Fleet summary

NumberSerial
number
In serviceWithdrawnScrappedNotes
1270A.09226 October 196424 November 1988 Queensland Rail Heritage Division, stored
1271A.0909 November 196419 January 1989October 1991
1272A.09123 November 196418 November 1989January 1992
1273A.0937 December 19648 November 1988October 1991
1274A.09421 December 196418 January 1989October 1991
1275A.0957 January 196530 December 1988September 1991
1276A.09823 April 196517 January 1989November 1991
1277A.09930 April 196523 January 1989November 1991
1278A.10013 May 196517 November 1988September 1991
1279A.10121 May 196519 November 1988November 1991
1280A.10222 June 196518 November 1988November 1991
1281A.10330 July 19654 January 1989Named Century. Queensland Rail Heritage Division, Workshops Rail Museum
1282A.1086 November 196417 November 1987October 1991
1283A.11321 February 196629 October 1988November 1991
1284A.1077 December 196521 November 1988October 1991
1285A.10626 November 196531 October 1988January 1992
1286A.1124 February 196616 January 1989October 1991
1287A.11518 March 196630 December 1988November 1991
1288A.1147 April 196621 November 1988October 1991
1289A.11722 April 196622 December 1988October 1991
1290A.11929 April 196614 November 1988November 1991
1291A.12013 May 196625 September 1989November 1991
1292A.1223 June 196617 November 1988November 1991
1293A.12310 June 196616 November 1988January 1992
1294A.12617 June 196622 December 1988October 1991
1295A.1271 July 19664 January 1989September 1991
1296A.12815 July 19665 April 1988October 1991
1297A.12928 July 196610 August 1987December 1989
1298A.13012 August 196616 January 1989November 1991
1299A.13112 August 196621 January 1988October 1991

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References

  1. 1 2 Oberg, Leon (2007). Locomotives of Australia: 1850s-2007. Rosenberg Publishing. pp. 332–333. ISBN   978-1877058547.
  2. 1 2 3 English Electric 1270 Class Queensland's Railway Interest Group
  3. 1270 Class Queensland's Great Trains
  4. Diesel Locomotives Association of Tourist Railways Queensland 13 March 2011