All About Engines

The Locomotive 271 2-10-2, are types of American engines for very heavy trains over steep gradients. English railways were, from the beginning, built in a substantial manner, with small gradients and curves of large radius ; for they were laid for the most part through thickly populated country dotted with the factories and workshops which had grown -Q-Oq 00QQ. 00QQQ 2-2-2 4-4-e 4-6-0 00QQ0 Atlantic 4-4-2 ooQQQq qqQQQqo Pacific 4-6-2 Baltic 4-6-4 q.QQQ qQQØo qQGQQQo Mogul 2-6-0 Prairie 2-6-2 Santa Fé 2-10-2 oQQQQQqQQQQo qQQQO Decapod 2-10-0 Mikado 2-8-2 Consolidation 2-8-0 Fig. 154.—Wheel arrangements up under the Industrial Revolution. But in North America and the Colonies the railway was the pioneer agent in opening up the country, and until the land was settled very little return on the outlay was pos- sible. In recent years the Canadian Pacific Railway Company, for example, has spent millions in easing the gradients and smoothing out the curves. The trouble from curves can be overcome to some extent by articulated locomotives — that is, loco- motives with joints in them. In America the Mallett