well this is sort of a lingering thought but also scary on the dot for some the UP big boy 4014's and the N&W 611 not passing the steam trials and becoming ether a display peice again or just being made scrap and that would be a waste of some good history (btw for those who dont know the big boy apart from being the biggest steam loco ever built its also the 15th one and its being brought back to full working order (normally i would have said it is a living breathing creature and all steam trains are when running) in the next 5- to 7 years)