Victorian Railways Physic for Roller Bearing Wagon Stock Cars.
This e-spec is for the special wagons built at Newport Workshops,
can also be used on other rollingstock similar and close to the weight of 92ton 8cwt 'unloaded tare'.
Brake Pipe: 72PSI Max
Brake Cylinders: (4x 13in x 6.25in) 50PSI Max
Brake Ratio: 34.2% - 89.8%