New South Wales 41 class locomotive

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The 41 class is a class of diesel locomotive ordered by the New South Wales Government Railways in Australia.

1 History
2 Preservation
3 Statistics
4 References

[edit] History

An order was placed for 10 1000HP locomotives with Australian General Electric Pty. Ltd. in 1950. The contract was then sent to British Thompson Houston in the UK. Locomotive 4101 was delivered later than 4102 (4102 was delivered 13th October 1953). 4110 was delivered in February 1955.

The Paxman 12-RPHL engine proved unsuccessful due to low cooling water capacity. British Rail (BR) locomotive classes 15 and 16 had the same problem. The excitation system was not allowing the two motors to share the same load. The cooling system layout did not allow multiple locomotives to work due to the radiator heat passing from the leading 41 class loco to the trailing locos.

Modifications were carried out in 1955-1956 to make the radiators extend forward, blank off the side off exit panels and duct the hot air out through the headlight. Mufflers were modified on 4102 and 4104 in 1958. This included relocating the mufflers to over the normal roofline. This was successful, but 4101, 4103, 4105-4110 was not modified.

4110 was the last loco to wear the green colour scheme on a diesel loco, been repainted Tuscan Red in August 1970. The railways administration had ran out of patience with the class. Some of the locos were put aside. 4102 was the last loco in service, been withdrawn in June 1975 after seizing a piston in the 'A' engine.

[edit] Preservation

4102 is the only loco restored. After it arrived at the New South Wales Rail Transport Museum in 1976, the engine was repaired. It failed again in 1982. During 1996, it was stored at the XPT Meeks Road Maintenance Centre in Sydenham. The spare engine was put in.

[edit] Statistics

Constructor: Brtish Thompson Houston,UK
Engine: PAXMAN 12-RPHL
Generator: RTB 10844
Traction motors: BTH 157AZ
Axles: Bo-Bo
Mass: 82 tonnes
Length: 14.4m
Gauge: Standard
Engine Power: 745kW/1000HP
Tractive effort: 250/113 kN
Speed: 91/18 kph
Cost: 62,220 13 3 pounds each (622,201 33 pounds total cost)

[edit] References

v • d • e Sydney and New South Wales Rail Rollingstock

Steam locomotive	12 class • 13 class • 14 class • 19 class • 30 class • 32 class • 35 class (3526) • 36 class (3642) • 38 class (3801) (3830) • 50 class • 50 class • 53 class • 55 class • 57 class • 59 class • 60 class

Diesel locomotive	40 class • 41 class • 42 class • 421 class • 422 class • 43 class • 44 class • 442 class • 45 class • 47 class • 48 class • 49 class • 70 class • 72 class • 73 class • 79 class • 80 class • 81 class • 82 class • 90 class • PL class • XP class • X100 and X200 class rail tractors

Electric locomotive	46 class • 85 class • 86 class

Suburban electric	L, R, and S sets • K set • C set • T set (Tangara) • M set (Millennium) • PPP cars

Interurban electric	V set • G set (Tangara) • H set (OSCARs)

Diesel railcar	CPH railmotor (Tin Hare) • Silver City Comet • DEB railcar • 620 & 720 railcar • XPT • Xplorer • Endeavour railcar • Hunter railcar

Rail rollingstock in New South Wales • CityRail fleet • CountryLink