N, NA, and NB Classes

N1880 (Michael Donahoo)

NA1874 (Chris Stratton)

NB1873 (Richard Montgomery)



1872 (John Cleverdon)



NA1874 (Ben O'Malley)


1873 (John Cleverdon)



 

Locomotive numbers: N1871-1881
NA1871-1874
NB1872-1873

 

Model Number: CE618
 

Type Diesel-Electric
Introduced 1977 (N)
1982 (NA)
1994 (NB)
Number in class 11 (N)
4 (NA)
2 (NB)
Manufacturer Comeng, Bassendean (N)
Comeng / Westrail (NA, NB)
Gauge Narrow (N, NA)
Standard (NB)
Axles Co-Co 
Length 17 m
Mass 108 t
Engine Alco 12-251E
Generator GE GTA11B4A
Traction motors GE 5GTAB4-761A5
Power 1790 kW / 2400 HP
Tractive effort 282 / 240 kN
Speed 105 / 21 km/h

The N class was initially used for bauxite, coal, and woodchip traffic in the southwest of WA, although later on, their reliability may not have been as good as other classes, as indicated by the fact that all are now withdrawn. In 1982, four locos were rebuilt to become the NA class, the reason for this being to replace vacuum brakes with air brakes (this making them more reliable). Then, in 1994, two of the NAs were rebuilt to become standard gauge NB class, presumably due to a requirement for more standard gauge locos.
Both the NB class and one of the NA class have now been sold to Austrac. The remainder were scrapped.
 
Junee Railway Workshops (Austrac):
The 18 class are Junee Railway Workshops latest acquisition, with two already being used for their NSW, and for a while, Sydney-Melbourne operations. 1874 remained unused, and was sold to South Spur Rail. 
The two locos are leased to LVRF for trip train workings in the Sydney area, but have now been sold to Patrick Rail for use in SA.

South Spur Rail:
This purchase of SSR saw the NA class return home.

Patricks:
Two are being used by Patricks to haul trains from Adelaide to the Bowmans freight depot, north of Adelaide.

Loco Serial # In Service Comments
N1871 C-6099-1 / WA-79 12/1977 Rebuilt as NA1871
N1872 C-6099-2 / WA-79 8/1977 Rebuilt as NA1872
N1873 C-6099-3 / WA-79 11/1977 Rebuilt as NA1873
N1874 C-6099-4 / WA-79 11/1977 Rebuilt as NA1874
N1875 C-6099-5 / WA-79 1/1978 Scrapped
N1876 C-6099-6 / WA-79 3/1978 Scrapped
N1877 C-6099-7 / WA-79 8/1978 Scrapped
N1878 C-6099-8 / WA-79 10/1978 Scrapped
N1879 C-6099-9 / WA-79 12/1978 Scrapped
N1880 C-6099-10 / WA-79 2/1979 Scrapped
N1881 C-6099-11 / WA-79 6/1979 Scrapped
NA1871 C-6099-1 / WA-79 12/1982 Scrapped
NA1872 C-6099-2 / WA-79 6/1983 Rebuilt as NB1872
NA1873 C-6099-3 / WA-79 11/1982 Rebuilt as NB1873
NA1874 C-6099-4 / WA-79 7/1982 Sold to Austrac as 1874, never entered service
Sold to South Spur Rail as NA1874, In service 12-2001
NB1872 C-6099-2 / WA-79 8/1994 Sold to Austrac as 1872, In service ?
Sold to Patrick Rail; In service 12-2004
NB1873 C-6099-3 / WA-79 9/1994 Sold to Austrac as 1873, In service ?
Sold to Patrick Rail; In service 12-2004

 
 

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