Southern Pacific Railroad The Southern Pacific (or Espee from the railroad initials- SP) was an American Class I railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the ...

's AC-2 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 locomot ...

s was the second in the AC series of

cab forward The term cab forward refers to various rail and road vehicle designs that place the driver's compartment substantially farther towards the front than is common practice. Rail locomotives In steam locomotive design, a cab forward design will ...

locomotives built for Southern Pacific (SP). This class consisted of locomotives that were rebuilt from

Baldwin Baldwin is a Germanic name, composed of the elements ''bald'' "bold" and ''win'' "friend". People * Baldwin (name) Places Canada * Baldwin, York Regional Municipality, Ontario * Baldwin, Ontario, in Sudbury District * Baldwin's Mills, Qu ...

-built SP MC-4 class locomotives by 1930. The rebuild from MC-4 class gained the locomotives about in tractive effort, but also increased the locomotives' weight by about . The locomotives were deemed successful and remained in active service until after World War II.

References

* Baldwin locomotives Mallet locomotives AC-02 2-8-8-2 locomotives Simple articulated locomotives Steam locomotives of the United States Scrapped locomotives Standard gauge locomotives of the United States {{steam-loco-stub Freight locomotives Cab forward steam locomotives