<kuid2:73150:101474:3> NSW Freight Rail 86 class Tri-Bo 8650 TS12 - TF

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The 86 class initially hauled passenger and freight services to Lithgow on the Main Western line and Wyong on the Main Northern line. Their sphere of operation extended to Newcastle on the latter line in June 1984 and to Port Kembla in January 1986 when the Illawarra line was electrified.

With a one-hour rating of 4,400 horsepower (hp), the 86 class was the most powerful locomotive in Australia at the time. Although no longer in regular use, the class remains among the most powerful in the country. Despite their higher power rating, they were generally regarded as inferior to the Metropolitan-Vickers built 46 class, which dated from the late 1950s.

The last unit was delivered as a Bo-Bo-Bo as a trial unit It spent long periods out of traffic undergoing repair.

In 1994/95 all were repainted by A Goninan & Co, Taree into FreightCorp blue. By October 1997 18 had been withdrawn from service with cracked frames. By this stage the amount of work requiring electrics was reducing. National Rail decided it would through haul its services and from March 1998 FreightCorp ceased operating them on Main Northern line services. The need for electrics continued to decline with their remaining duties mainly being hauling coal trains from Lithgow to Port Kembla. The last examples were withdrawn in June 2002.

In 2002, most were sold to Silverton Rail and taken to Broken Hill then sold again in February 2006 to Allco Finance Group with some on sold, but most scrapped. Four were leased back to RailCorp in 2004 for use on infrastructure trains during construction of the Bondi Junction turnback.

These electric locomotives were originally purchased as part of the Blue Mountains electrification works, and spent their life hauling coal, freight and passenger carriages under the wires. The 46 class locomotives were often seen double or triple heading coal and freight services.

The class 46 was the most powerful locomotive in Australia for many years, with a one hour rating of 3,780 horsepower (2,820 kW) and ability to deliver more than that for short periods. They proved to be very reliable and were generally considered superior to the much newer and even more powerful Comeng-Mitsubishi 85 class and 86 class electric locomotives. Their build quality and durability was such that 38 of the original 40 remained on the books in 1990.
Serial number 786–825
Build date 1956
Total produced 40
Co+Co
Gauge 4 ft 8 1?2 in (1,435 mm)
Wheel diameter 45 in (1,143 mm)
Wheelbase 41 ft 0 in (12.50 m)
Length Over headstocks: 51 ft 2 in (15.60 m), Over coupler pulling faces: 53 ft 11 1?4 in (16.44 m)
Width 9 ft 7 in (2.92 m)
Height Over stowed pantograph: 14 ft 6 in (4.42 m)
Axle load 18 tons 14 cwt (41,900 lb or 19.0 t)
Locomotive weight 112 tons 0 cwt (250,900 lb or 113.8 t)
Electric system 1,500 V DC
Traction motors MV 272 (6 off)
Top speed 70 mph (113 km/h)
Power output Continuous: 3,400 hp (2,540 kW), One hour: 3,780 hp (2,820 kW)
Tractive effort Continuous: 36,700 lbf (163.25 kN), One hour: 40,800 lbf (181.49 kN) at 34.5 mph (55.5 km/h)