South Australian Railways F class (1902)

South Australian Railways
F Class

South Australian Railways F240

South Australian Railways F240, 1952.
Type and origin
Power type Steam
Builder
  • S.A.R. Islington Workshops (21)
  • James Martin & Co. (12)
  • Perry Engineering (10)
Total produced 44
Specifications
Configuration 4-6-2T
UIC class 2′C1′ n2t
Gauge 5 ft 3 in (1,600 mm)
Driver dia. 5 ft 3 in (1.600 m)
Length 40 ft 7.25 in (12.376 m)
Loco weight 59 long tons (59,947 kg)
Fuel type Coal
Fuel capacity 2.25 long tons (2,286 kg)
Water cap 1,160 gallons
Boiler pressure 185 psi (1.28 MPa)
Cylinders Two,
Cylinder size 17 1⁄2 in × 24 in (444 mm × 610 mm)
Valve gear Stephenson
Performance figures
Maximum speed 60 mph
Tractive effort 18,335 lbf (81.56 kN)
Career
Operators South Australian Railways
Numbers 167 - 189, 236 - 255
Disposition 41 scraped, 3 preserved

The South Australian Railways F class was a class of broad gauge 4-6-2 tank engines operated by South Australian Railways.[1][2]

The class hauled the majority of Adelaide's suburban passenger trains from its introduction in the early 1900s. The type replaced the smaller P class 2-4-0T engines, which were struggling with the increasing sizes of suburban passenger trains. From the 1930s, F class locomotives were replaced by 55 and 75 class Brill railcars on lightly patronised routes. They continued to see extensive service on popular routes until their displacement in 1955-56 by Redhen diesel multiple units. Some engines were retained for shunting duties at Port Adelaide and Mile End with F225, the final member of the class being condemned in 1969. [3]

The locomotives had saturated steam boilers and were considered attractive. While slow to accelerate away from stations, the locomotives were capable of reaching speeds of up to 60 mph (100 km/h). They were a capable locomotive, they faced few restrictions, except for the Belair branch operations which were limited to 3 carriages.[4]

In total there were 44 members of the class. The first member of the class was built in 1902 but the South Australian Railways' Islington Workshops. The Islington workshops built 22 locomotives. James Martin & Co. of Gawler built 12 units, with the remaining 10 built by Perry Engineering. Perry Engineering built F255, the final member of the class, which entered service in October 1922.[5]

Three members of the class avoided the scrapper's torch. F249 is on display at the Gawler, South Australia railway station. F255, the final member of the class, survives in the collection of the National Railway Museum.

F251 survived in working order. The Steamranger tourist railway operator acquired it in 1981. It saw heavy in the 1990s while the tourist railway's Rx, 520 and 620 class locomotives were being overhauled. It was underpowered however and placed into storage. There are currently no plans to restore it to a working condition again.[6]


F class locomotives
South Australian Railways F 242
South Australian Railways F 242 hauling a passenger train at Eden Hills, 1952. 
South Australian Railways F 242
South Australian Railways F 242 hauling a passenger train at Clapham, 1952 
South Australian Railways F 176 and F 177
South Australian Railways F 176 and F 177, 1951 

References

  1. ↑ http://www.natrailmuseum.org.au/rollingstockexhibit.php?exhibitID=6
  2. ↑ http://www.comrails.com/sar_locos/r_b_f.html
  3. ↑ http://www.natrailmuseum.org.au/rollingstockexhibit.php?exhibitID=6
  4. ↑ http://www.natrailmuseum.org.au/rollingstockexhibit.php?exhibitID=6
  5. ↑ http://www.natrailmuseum.org.au/rollingstockexhibit.php?exhibitID=6
  6. ↑ http://www.steamranger.org.au/enthusiast/steam.htm


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