Queensland Railways 1250 class

Queensland Railways 1250 class

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Cutaway 1262 at the Workshops Rail Museum, North Ipswich in October 2011
Type and origin
Power type Diesel-electric
Builder English Electric, Rocklea
Model MCH193C
Build date 1959-63
Total produced 17
Specifications
UIC class Co-Co
Gauge 1,067 mm (3 ft 6 in)
Length 16.13 m (52 ft 11 in)
Loco weight 91 t (90 long tons; 100 short tons)
Fuel type Diesel
Prime mover English Electric 12SVT
Generator English Electric English Electric 822
Traction motors English Electric English Electric 525
Performance figures
Maximum speed 80 km/h (50 mph)
Power output 1,035 kW (1,390 hp)
(1250-1254)
1,145 kW (1,540 hp)
(1255-1266)
Tractive effort 227 kN (51,000 lbf)
(1250-1254)
254 kN (57,000 lbf)
(1255-1266)
Career
Operators Queensland Railways
Number in class 17
Numbers 1250-1266
First run 23 July 1959
Last run 24 November 1987
Preserved 1262, 1263
Disposition 2 preserved, 15 scrapped

The 1250 class were a class of diesel locomotive built by English Electric, Rocklea for Queensland Railways between 1959 and 1963.

History

1251 in Gympie yard hauling a northbound freight train including a new 3100 class locomotive being delivered to Gladstone in 1987

The design of the 1250 class was unusual being a cab unit with a cab similar to the 1200 class but with a narrow long hood.[1]

The first five units had a 1,035 kW (1,390 hp) engine and screw couplers.

The subsequent units fitted with a 1,145 kW (1,540 hp) engine, auto couplers and were wired for multiple unit operation.

They were used on ore traffic on the Great Northern line, and on general freight on the North Coast and Southern lines.[1][2][3] A characteristic addition to the 1250 class in 1961 was a sun visor to help reduce glare.

Withdrawal & disposal

Two were withdrawn in the early 1980s, donating parts to the rebuild of the single 1225 class locomotive. The remainder were withdrawn in 1987. Two units have been preserved:[1][4]

Status table

Number Serial
number 		In service Withdrawn Scrapped Notes
1250 A.025 22 July 1959 20 March 1987 December 1989
1251 A.026 27 August 1959 16 November 1987 December 1989
1252 A.027 21 September 1959 12 October 1980 September 1985
1253 A.028 4 November 1959 24 September 1987 December 1989
1254 A.029 30 December 1959 3 November 1987 December 1989
1255 A.043 4 September 1960 6 November 1987 December 1990
1256 A.044 4 November 1960 6 November 1987 December 1990
1257 A.045 24 November 1960 24 November 1987 December 1990
1258 A.046 15 December 1960 5 November 1987 December 1990
1259 A.047 27 January 1961 11 September 1987 December 1989
1260 A.048 26 September 1961 16 November 1987 December 1990
1261 A.049 26 September 1961 16 November 1987 December 1990
1262 A.050 27 October 1961 3 November 1987 Preserved, Queensland Rail Heritage Division, Workshops Rail Museum
1263 A.051 22 November 1961 16 November 1987 Preserved, Australian Railway Historical Society
1264 A.052 18 April 1962 20 November 1987 December 1990
1265 A.074 25 July 1963 21 September 1987 December 1989
1266 A.075 31 July 1963 7 October 1987 December 1989

References

  1. 1 2 3 Electric 1250 Class Queensland's Railway Interest Group
  2. ↑ Oberg, Leon (2007). Locomotives of Australia: 1850s-2007. Rosenberg Publishing. pp. 306–307. ISBN 1877058548.
  3. ↑ 1250 & 1270 Class Queensland's Great Trains
  4. ↑ Diesel Locomotives Association of Tourist Railways Queensland 13 March 2011
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