Evolution
A clear line of development can be seen in the Class 04s from the 0-4-0DM locomotives built by Andrew Barclay and Drewry/Vulcan Foundry in the early 1940s. The design continued to develop during the construction period, but this was generally confined to the size of the cab windows and the diameter of the wheels. Similar locomotives had been built before the first Class 04, and others were built for industrial use.
Read more about this topic: British Rail Class 04
Famous quotes containing the word evolution:
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—Mario Puzo (b. 1920)
“Historians will have to face the fact that natural selection determined the evolution of cultures in the same manner as it did that of species.”
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—Willard Van Orman Quine (b. 1908)