Physic for the Victorian Railways Harris Trailer and Backing Trailer Cars.
Harris Motor Cars and Trailers where equiped with Electro-Pneumatic Self Lapping Brake Equipment, this physic is not set up to simulate that though as trainz doesn't support it.
Brake Pipe: 72 PSI Max
Main Res: 70 PSI Max
Brake Cylinder: 50 PSI Max
Brake Ratio: 70.2% to 76.7%