Southern Pacific class AC-5

Southern Pacific class AC-5

Infobox Locomotive
name=Southern Pacific class AC-5
powertype=Steam
railroad=Southern Pacific Railroad
gauge=4 ft 8½ in (1435 mm)
railroadclass=AC-5
driversize=63 in diameter
cylindersize=24 in dia × 32 in stroke
weight=622,600 lb
weightondrivers=482,500 lb
boilerpressure=235 psi
tractiveeffort=116,900 lbf
feedwaterheater=4¼-BL Worthington
builder=Baldwin Locomotive Works
serialnumber=60866-60869, 60884-60889, 60952-60957
builddate=July-September 1929
firstrundate=August 16 1929
retiredate=1955
disposition=scrapped
roadnumber=4110-4125
numinclass=16
whytetype=4-8-8-2

Southern Pacific Railroad's AC-5 class of steam locomotives was the railroad's second class of 4-8-8-2 cab forward locomotives. They were built between July and September 1929 and placed in service soon after construction. The AC-5 class was only slightly larger than the AC-4 class.

The first locomotive of this class, number 4110, holds the dubious honor of being the first 4-8-8-2 cab forward locomotive to be scrapped when it befell this fate on February 3 1953, at the railroad's Sacramento, California, shops. The rest of the class were removed from service and scrapped by mid-1955. None of this class was preserved.

References

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