Iron ore train breaks record for length. PERTH, June 22 AAP - It took 10 hours and four minutes, but the longest and heaviest train in the world won a world record for BHP when it pulled into Port Hedland after a 275km journey. But the 7.353km long train did not go without a hitch on its journey as eight AC 6000 engines and 682 iron ore cars carried about 82,000 metric tonnes net between Port Newman and Port Hedland yesterday. BHP Iron Ore spokesman John Crowley said the train's run was halted for four hours and 40 minutes when two couplers broke between carriages and had to be replaced. Mr Crowley said the successful record run was set up to test the train's capacity using new engines. BHP operates nine trains a day, usually with a load of about 224 cars carrying more than 26,000 tonnes of iron ore. For the "unmetricated" thats 4.56 miles long and 95,000 tons on a journey of 170 miles. For the "mathematically" minded, how long is that in each scale???? I'll try and find a pic. TOOT!