The
Atchison, Topeka and Santa Fe Railway
The Atchison, Topeka and Santa Fe Railway , often referred to as the Santa Fe or AT&SF, was one of the larger railroads in the United States. The railroad was chartered in February 1859 to serve the cities of Atchison and Topeka, Kansas, and S ...
class 5011 was the last class of
steam locomotive
A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the loco ...
s to be purchased by AT&SF. The class was introduced by
Baldwin Locomotive Works in 1944.
History
A total of 25 of these large engines were built. They were nicknamed "War Babies" by the AT&SF from being built and used during
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
.
The AT&SF ran the class from the mid-1940s to the mid-late 1950s. Despite being mainly freight haulers, their driving wheels were unusually tall for a "Texas" type, which led to them also being successful in passenger service.
Specifications
Numbers 5011 to 5035, when built, were the largest and fastest class of
"Texas"-type locomotives ever built and equipped with
Timken roller bearing
In mechanical engineering, a rolling-element bearing, also known as a rolling bearing, is a bearing which carries a load by placing rolling elements (such as balls or rollers) between two concentric, grooved rings called races. The relative m ...
s on every axle.
The engines had a maximum output of measured at the rear of the tender, at a top speed of .
Present day

Four of the class 5011 locomotives were preserved by the AT&SF for museums, with the remainder being scrapped.
The four preserved locomotives are:
* #5011 — at the
National Museum of Transportation
The National Museum of Transportation (NMOT) is a private, 42-acre transportation museum in the Kirkwood suburb of St. Louis, Missouri. Founded in 1944, it restores, preserves, and displays a wide variety of vehicles spanning 15 decades of Amer ...
, Kirkwood, Missouri.
* #5017 — at the
National Railroad Museum
The National Railroad Museum is a railroad museum located in Ashwaubenon, Wisconsin, US.
Founded in 1956 by community volunteers, the National Railroad Museum is one of the oldest and largest U.S. institutions dedicated to preserving and in ...
, Green Bay, Wisconsin
* #5021 — at the
California State Railroad Museum
The California State Railroad Museum is a museum in the state park system of California, United States, interpreting the role of the " iron horse" in connecting California to the rest of the nation. It is located in Old Sacramento State Histor ...
,
Sacramento, California
)
, image_map = Sacramento County California Incorporated and Unincorporated areas Sacramento Highlighted.svg
, mapsize = 250x200px
, map_caption = Location within Sacramento C ...
.
* #5030 — at Salvador Perez Park, in
Santa Fe, New Mexico
Santa Fe ( ; , Spanish for 'Holy Faith'; tew, Oghá P'o'oge, Tewa for 'white shell water place'; tiw, Hulp'ó'ona, label= Northern Tiwa; nv, Yootó, Navajo for 'bead + water place') is the capital of the U.S. state of New Mexico. The name “S ...
.
See also
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References
{{Reflist
Atchison, Topeka and Santa Fe Railway locomotives
Steam locomotives of the United States
2-10-4 locomotives
Baldwin locomotives
Freight locomotives
Preserved steam locomotives of the United States