In the United States, the type was used only on the Southern Pacific Railroad (SP), which called it the Southern Pacific, and the Union Pacific Railroad (UP), which called it the Overland after their corporate sobriquet, The Overland Route.

In 1925 ALCO built two similar 4-10-2s and had the Southern Pacific and Union Pacific try them out. On the SP, they called this wheel arrangement "Southern Pacific". On the UP, they called this wheel arrangement "Overland".

Used in several regions, the class had joined the 9000s (three-cylinder 4-12-2) on the prairies in Kansas when they began retiring. Most had had the center driver replaced with a Boxpok main driver. 5094 and 5096 were the first to go out of service in 1948, followed by 5098-5099 in 1949.

Special equipment included the Franklin C-2 trailing truck booster and Worthington 4-B feed water heater capable of processing 7,200 US gallons (27,252 litres) per hour. HB Comstock contends that the SP 4-10-2s ran quite well.

Nov 5, 2024 · The 4-10-2 wheel arrangement, often referred to as the Southern Pacific for the railroad which put it to use most successfully, was a unique design that utilized three-cylinders instead of the traditional two.

The UP, as a result, had to find another name for its ten class FTT-1 and FTT-2 4-10-2s, and styled them the "Overland" type in keeping with its passenger marketing theme. ALCo's Brooks Works delivered them as three-cylinder locomotives in 1925-26, but in 1942 the UP rebuilt them into simpler two-cylinder engines and renumbered them from the ...

Dec 25, 2024 · Built by Alco-Brooks in May of 1926, this 3 cylinder variant was primarily used for the Los Angeles & Salt Lake Rwy. Union Pacific labeled the 4-10-2 wheel configuration as "Overland" rather than using the traditional label of "Southern Pacific' type for obvious reasons.

The "long legged" UP 4-10-2 #8807 was built by Alco-Brooks in May of 1926 (serial #66733, class FTT-2. Although not particularly successful as a 3 cylinder variant, the loco was rebuilt by the UP shops.

Southern Pacific 5021 is an SP-2 class 4-10-2 steam locomotive built in 1926 by ALCO at their Schenectady, New York, shops. It is the only member of this class of SP locomotives to be preserved, and it is one of only five three-cylinder locomotives preserved in North America.

4-10-2 southern pacific / overland steam locomotive Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 4-10-2 represents the arrangement of four leading wheels, ten powered and coupled driving wheels and two trailing wheels.