Queensland Railways 1200 class

The 1200 class were a class of diesel locomotive built by English Electric, Bradford for Queensland Railways in 1953-1954.

Queensland Railways 1200 class
1225 at Redbank Railway Workshops
in August 2005
Type and origin
Power typeDiesel-electric
BuilderEnglish Electric, Bradford
Build date1953-1954
Total produced10
Specifications
Configuration:
​
 • CommonwealthCo-Co
Gauge1,067 mm (3 ft 6 in)
Wheel diameter3 ft (0.914 m)
Wheelbase45 ft (13.716 m) total, 12 ft 6 in (3.810 m) bogie
Length54 ft 10 in (16.713 m) over couplers
Width9 ft 3 in (2.819 m)
Height12 ft 5 in (3.785 m)
Axle load14.7 long tons (14.9 t; 16.5 short tons)
Loco weight88 t (87 long tons; 97 short tons)
Fuel typeDiesel
Fuel capacity750 imp gal (3,400 L)
Prime moverEnglish Electric 12SVT Mk II
RPM range450 - 850rpm
Engine typefour stroke, four valves per cylinder
Aspirationturbocharged
GeneratorEE828
Traction motorsSix EE525
Cylinders12 Vee
Cylinder size10 in × 12 in (254 mm × 305 mm)
Loco brakeAir
Train brakesAir
Performance figures
Maximum speed50 miles per hour (80 km/h)
Power output1,290 hp (960 kW) gross, 1,100 hp (820 kW) net
Tractive effort30,000 lbf (133.4 kN) at 12 mph (20 km/h)
Career
OperatorsQueensland Railways
Number in class10
Numbers1200-1209
DeliveredJuly 1953
Last run10 February 1984
Preserved1200, 1208
Disposition2 preserved, 8 scrapped

History

The 1200 class were rostered to haul The Sunlander between Brisbane and Cairns, The Westlander between Brisbane and Roma and The Inlander from Townsville to Mount Isa.[1]

A characteristic addition to the 1200s in 1961 was a sun visor to help reduce glare. As they became due for heavy overhauls in the late 1970s, they were withdrawn.[1]

1200 has been preserved by the Australian Railway Historical Society, and is currently stored at Redbank Railway Workshops.[2][3][4]

1225 class

In 1984, 1208 was rebuilt using parts from 1250 class locomotives 1252 and 1253, including a more powerful 1,145 kW (1,540 hp) engine to replace the original 962 kW (1,290 hp) EE 12SVT engine, while the body was modified to resemble a 1250 class. It earned the nickname "Hybrid" after this work and was renumbered 1225. It remained in service until 1987, based at Toowoomba working mainly on the Southern line. The loco is now privately owned and is currently stored at Queensland Pioneer Steam Railway (QPSR)at Swanbank Queensland since it was moved there in mid-2010. QPSR now want it out of their premises so now its future is uncertain.[2][4][5]

Status table
NumberSerial
number		In serviceWithdrawnScrappedNotes
1200 1905-D146 21 July 1953 3 March 1977 Preserved
1201 1906-D147 3 July 1953 5 May 1978 May 1984
1202 1907-D148 11 December 1953 9 November 1971 January 1991
1203 1908-D149 10 December 1953 17 January 1980 January 1991
1204 1909-D150 3 December 1953 2 September 1981 January 1986
1205 1910-D151 26 January 1954 19 August 1978 April 1984
1206 1911-D152 16 February 1954 6 July 1983 August 1985
1207 1912-D153 2 September 1954 27 July 1979 August 1985
1208 1913-D154 8 March 1954 10 February 1984 Rebuilt as 1225
1209 1914-D155 5 April 1954 26 January 1978 March 1986
1225 16 January 1985 16 November 1987 Preserved

References
  1. Oberg, Leon (1984). Locomotives of Australia 1850s-1980s. Frenchs Forest: Reed Books. p. 212. ISBN 0 730100 05 7.
  2. English Electric 1200 Class Queensland's Railway Interest Group
  3. Diesel Locomotives Association of Tourist Railways Queensland 13 March 2011
  4. 1200 Class Queensland's Great Trains
  5. Adams, Greg (December 2010). "Rebuilding a Rebuild: The story of QR 'Hybrid' 1225". Railway Digest. p. 56.
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