Longest freight train

The longest train ever was 7.353 km (4.57 miles or 24,123 ft 11.61 in) long, and consisted of 682 ore cars pushed by 8 powerful diesel-electric locomotives. Assembled by BHP Iron Ore, the train travelled 275 km (171 miles) from the company's Newman and Yandi mines to Port Hedland, Western Australia, on 21 June 2001. The train was also the heaviest ever, weighing an incredible 99,732.1 metric tonnes. It had an amazing 5,648 wheels. The train was assembled to test out a new train control system, which essentially allows the driver in the front locomotive to control the other seven engines simultaneously, even though they are spaced at intervals of nearly a kilometre along the length of the train. The locomotives were General Electric model AC6000 CW.