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Specifications
Specifications
Configuration:;
• UIC	A1A-A1A
Gauge	1,600 mm (5 ft 3 in)
Wheel diameter	3 ft 6 in (1,067 mm)
Wheelbase	52 ft 2 in (15,900 mm) total, 16 ft 2 in (4,928 mm) bogie
Length	63 ft 4 in (19,304 mm) over headstocks, 66 ft 2 in (20,168 mm) over coupling faces
Width	9 ft 7+1⁄4 in (2,927 mm)
Height	13 ft 9 in (4,191 mm)
Axle load	21 long tons (21.3 t; 23.5 short tons)
Adhesive weight	84 long tons (85.3 t; 94.1 short tons)
Loco weight	121 long tons (122.9 t; 135.5 short tons)
Fuel type	Diesel
Fuel capacity	1,000 imp gal; (4,500 L)
Prime mover	English Electric 16SVT Mk I
RPM range	450–750 rpm
Engine type	Four-stroke, 2 valves per cylinder
Aspiration	Turbocharged
Generator	English Electric 822 type
Traction motors	4 type 523A air cooled
Cylinders	16 Vee
Cylinder size	10 in × 12 in; (254 mm × 305 mm)
MU working	X 3
Loco brake	Westinghouse Compressed Air, and Electric Dynamic

Type and origin
Type and origin
Power type	Diesel-electric
Builder	Islington Railway Workshops
Build date	1951-1953
Total produced	10

South Australian Railways 900 class
South Australian Railways 900 class
	900 Lady Norrie
Power type
Type and origin
Power type	Diesel-electric
Builder	Islington Railway Workshops
Build date	1951-1953
Total produced	10
Configuration:;
Specifications
Configuration:;
• UIC	A1A-A1A
Gauge	1,600 mm (5 ft 3 in)
Wheel diameter	3 ft 6 in (1,067 mm)
Wheelbase	52 ft 2 in (15,900 mm) total, 16 ft 2 in (4,928 mm) bogie
Length	63 ft 4 in (19,304 mm) over headstocks, 66 ft 2 in (20,168 mm) over coupling faces
Width	9 ft 7+1⁄4 in (2,927 mm)
Height	13 ft 9 in (4,191 mm)
Axle load	21 long tons (21.3 t; 23.5 short tons)
Adhesive weight	84 long tons (85.3 t; 94.1 short tons)
Loco weight	121 long tons (122.9 t; 135.5 short tons)
Fuel type	Diesel
Fuel capacity	1,000 imp gal; (4,500 L)
Prime mover	English Electric 16SVT Mk I
RPM range	450–750 rpm
Engine type	Four-stroke, 2 valves per cylinder
Aspiration	Turbocharged
Generator	English Electric 822 type
Traction motors	4 type 523A air cooled
Cylinders	16 Vee
Cylinder size	10 in × 12 in; (254 mm × 305 mm)
MU working	X 3
Loco brake	Westinghouse Compressed Air, and Electric Dynamic
Maximum speed
Performance figures
Maximum speed	75 miles per hour (121 km/h)
Power output	1,760 hp (1,310 kW) gross, 1,600 hp (1,190 kW) net
Tractive effort:;
• Starting	56,000 lbf (249.1 kN)
• Continuous	34,000 lbf (151.2 kN) at; 15 mph (20 km/h)
Operators
Career
Operators	South Australian Railways
Number in class	10
Numbers	900-909
Nicknames	Magnificent Beasts
First run	10 September 1951
Last run	18 June 1985
Preserved	900, 907, 909
Disposition	3 preserved, 7 scrapped

The 900 class were a class of diesel locomotives built by Islington Railway Workshops for the South Australian Railways between 1951 and 1953.

History

The 900 class were the first mainline diesels operated by the South Australian Railways. Ten were built at Islington Railway Workshops to replace steam locomotives on the heavily graded Mount Lofty Ranges. They operated both heavy freight trains and passenger services including The Overland. After the arrival of more powerful diesel, they were concentrated on the easier-graded lines from Adelaide to Port Pirie and Peterborough.^[1]

In March 1978, all were included in the transfer of the South Australian Railways to Australian National. Withdrawals commenced in May 1979^[1] with the last two withdrawn on 18 June 1985 after operating a cement train from Angaston to Dry Creek.^[2]^[3] Three have been preserved with the other seven scrapped.^[4]

Preserved

Three units have been preserved:

900 Lady Norrie resides at the National Railway Museum, Port Adelaide^[5]
907 resides in Tailem Bend under private ownership in derelict condition^[6]
909 resides in Tailem Bend under private ownership being standard gauge converted and soon to be restored^[6]^[7]

References

^ ^a ^b Oberg, Leon (1984). Locomotives of Australia 1850's – 1980's. Frenchs Forest: Reed Books. p. 190. ISBN 0-730100-05-7.
^ "South Australia" Railway Digest August 1985 page 247
^ Broad Gauge 900-class diesel locomotives Chris' Commonwealth Railway Pages
^ 900 Class Railpage
^ Lady Norrie National Railway Museum
^ ^a ^b The Tailem Bend Train Graveyard Weekend Notes 10 February 2013
^ Australian Trains | South Australian 909 Start Up ‘'YouTube'’ 30 August 2016