WAGR Qa class
The experiment was a success with three more of the Q class being rebuilt to Qa class specifications in 1909. The Qa class was designated to haul goods, passenger and mixed services, in this position they served on the Kalamunda zig-zag, Mudaring Weir Branch Line, Eastern Railway to Northam, South Western Railway to Bunbury and the Pinjarra to Holyoake section of the Hotham Valley Railway.