Rail smash at Ardglen, NSW, July 9, 1926
Steam trains and long tunnels are a dangerous combination, especially when not enough attention has been paid to ventilation, and when safe breathing apparatus hasn't been provided to the train crew. Poisonous gases from the combustion of the coal can overcome crew members and the train can go out of control. This is what happened in the tunnel through the Great Dividing Range in NSW, on the line between Muswellbrook and Quirindi, on July 9, 1926. A 44-car goods train, hauled by a 53-class locomotive, stalled on the steep grade and the engine crew was overcome…