Walkers/IGE 1170 Class

The 1170 class (initially numbered the 1500 class, and before that, the 1270 class) were introduced in 1956 as a Diesel-Electric alternative to the PB15 class steam loco. They became the first diesel-electric branch line locos in Queensland. The locos were built under license by Walkers Ltd. Maryborough as their first diesel-electrics.

The 1170s were nicknamed the ‘Pawpaws’ after a racehorse, which in turn was named after a character in a contemporary cartoon strip.

The 1170s spent most of their time based at Townsville, although earlier on they were used in the Brisbane area and southern regions of the state. Later on they were relegated to shunting duties.

Five members of the class have been preserved, with two in operational order. (see below for more information).

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Technical Details
Model NumberU67T/U6
BuilderWalkers Ltd Maryborough
Locomotive Numbers1170-1181
Number in Class12
GaugeNarrow Gauge (1,067mm or 3' 6")
AxlesOº-O-Oº Oº-O-Oº
EngineCooper Bessemer FWL-6T
Generator/AlternatorGE GT586
Traction MotorsGE 756
Power477kW / 640HP
Starting Tractive Effort122kN @ 30% adhesion
Continuous Tractive Effort90kN @ 15km/h
Speed80km/h (50mph)
Preserved Locomotives
1170QR Heritage DivisionIpswich Workshops
1172Privately OwnedBell, Qld
1177Privately OwnedDarling Downs Steam Railway Harristown
1179ARHS-Qld DivisionRosewood Railway Museum
1180RailCoAtherton Tablelands
Class Roster