Railways and Tramways of Australia
TT Class
Pacific National locomotives TT002, TT116 and TT125 lead an Up coal train passing East Maitland, 11 February 2025.
Road numbers:
TT01–8, TT101–32
Operator:
Pacific National
Gauge:
1435 mm
Year of entry into service:
2009
Number built:
40
Model:
GT46C-Ace
Manufacturer:
Downer EDI
Manufacturing location:
Cardiff, NSW
Engine:
EMD 710G3C
Traction power:
3207 kW
Wheel arrangement:
Co-Co
Weight:
134.0 t (low); 139.2 (high)
Length:
20.8 m
Pacific National’s TT Class units are used for working coal trains in the Hunter Valley of New South Wales. The first six were built with removable ballast pods, which enable the locomotive’s adhesive weight to be varied for different traffic needs should this be required. They share the GT46C-ACe production model that is in service with various freight railway operators in Australia.