The longest motive power for railway has been steam; since those early days, steam-powered locomotives carried people and freight worldwide. And sure, by the late 19th and early 20th Century, electricity became a popular choice for inter-urban railways. But on the mainlines, steam was king, and the last locomotives produced in the 20th Century could travel long distances and high speeds; I’m talking, of course, of the Northern’s, Pacific’s, and even larger engines. But these had one weakness, you needed a large crew to run them, two at the minimum, and they needed a lot of maintenance. Plus, they were loud, dirty, and took upRead More →