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T Class - T413

The 1st series of twenty seven T Class general purpose diesel electric locomotives were built in 1955 for Victorian Railways by the Clyde Engineering Company Pty Ltd of Sydney, NSW. They were primarily intended to replace steam locomotives on branch lines. A distinguishing feature of the 1st series locomotives is that the cab height is the same as the overall locomotive height. For this reason they are generally referred to as “flat tops”. Later versions had a raised cab roof.


T413 in 1990 after repainting at North Geelong. Photo John Green.

T413 was built in 1955 for use by the Australian Portland Cement Company at Fyansford. It was numbered D1 and differed from the other 1st series locomotives in being equipped with dynamic braking and 3' 6'' (1,067mm) gauge bogies.

It was purchased by Victorian Railways in 1967, re-gauged to 5' 3” (1,600 mm) and re-number to T413. The locomotive was based in Wodonga and used mainly on the Cudgewa line where the dynamic braking was helpful on the low speed line with continuous gradients of 1 in 30 and 1 in 40.

T413 was acquired by Seven-0-Seven Operations in 2003 and has been the centre of our mainline diesel locomotive fleet. Over its life with Seven-0-Seven Operations, T413 has received numerous additions to ensure its continued mainline operational status, including cab air-conditioning, automated pre-lubication system, bifurcated pipework, ditch (step) lights and ICE radio.

Over 2021 and 2022 T413 is undergoing a major repair with a full repair of bodywork across the locomotive and repaint.

T Class (1st Series) Technical Data

Group Numbers

T320 to T346, T413

Wheel arrangement

Two twin axle bogies,
All axles driven (Bo-Bo)

Nominal wheel diameter

3 feet 4 inches (1016 mm)

Overall dimensions
Length (over couplers)

47 feet 9 inches (14.554 m)
9 feet 5 inches (2.870 m)
12 feet 8˝ inches (3.873 m)

Wheelbase between bogie pivot centres

26 feet 6 inches (8.077m)


68 tons (69.1 tonne)

Adhesive weight / axle

17 tons (17.3 tonne)

Diesel Engine

Rated output

General Motors two stroke model 567C 950 hp (708kW)

275 - 835 rpm

Main Generator
Continuous rating

EMD Type D-15
1,500 Amps

Traction motors
Gear ratio

EMD D-19

Tractive effort

38,080 lbf (169.4 kN)
28,000 lbf (124.5 kN)
at 9.5 mph (15.3 km/h)

Maximum speed

62 mph (100km/h)

Fuel oil
Lubricating oil
Cooling water

750 gallons (3,410 l)
108 gallons (491 l)
180 gallons (818 l)

Built by

Clyde Engineering Co Pty Ltd, Sydney, NSW in 1955

Last Updated: 7 June 2022