Railroad locomotives using both steam and gas turbines have been built and tested but both were considered unsatisfactory.
Gas turbines move huge amounts of air which must exhaust to the atmosphere. One of the unacceptable issues with the UP turbine locomotives was damate (and potential liability) caused by the high velocity and high volume of hot exhaust gasses.
Experiments with steam turbines were performed in the late 1940s through the late 1950s by the PRR, N&W and C&O in conjunction with GE and Westinghouse. Reliability was an issue at that time but modern technology should easily deal with such issues. Of course, it is highly unlikely that this technology will be again considered for rail traction because steam generation requires lots of water and the railroads removed all watering infrastructure decades ago.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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