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Under the Whyte notation for the classification of steam locomotives, 4-6-2 represents the wheel arrangement of four leading wheels on two axles, six powered and coupled driving wheels on three axles and two trailing wheels on one axle.
22 cze 2006 · The 4-6-2, or Pacific type, grew out of the need for a more powerful passenger locomotive. Like the earlier passenger-hauling 4-4-2, the 4-6-2 had a large, deep firebox located behind the rear driving wheels.
There were two classes of 4-6-2 locomotives designed and built under Government auspices; one, the generally called "light", more correctly 4-6-2A, with 55,000 lbs weight per driving axle, and "heavy", 4-6-2B, with 60,000 lbs per driving axle.
The Chesapeake and Ohio was among the first railroads to test the 4-6-2 wheel arangement (around 1902) and had at least one 4-6-2 before the Missouri Pacific (from which the wheel arrangement gots its name).
6 dni temu · The deeper firebox, longer boiler, and high-profiled drivers of the 4-6-2 resulted in high-speed capabilities many railroads strived for. Advancements in steam technology at the time — such as superheaters and Walschaerts and Baker-style valve gear — boosted the Pacifics’ value. A trim Southern Pacific 4-6-2 makes better than 60 mph with ...
Pacific type steam locomotives feature a 4-6-2 wheel arrangement under the Whyte Notation. Pacific locomotives became popular for their power and speed.
1 lut 2024 · The 4-6-2 combined the speed of the Atlantic and the power of the Ten-wheeler becoming the most successful passenger steam locomotive ever built with more than 6,800 manufactured. The B&O recognized its advantages early and ordered its first batch of 35 from Alco in 1906.
