Southern Pacific Cab Forward locomotive

E30261
Mallet-type locomotive articulated locomotive cab-forward locomotive steam locomotive

The Southern Pacific Cab Forward locomotive is a distinctive class of steam engines with the cab placed at the front for crew safety, famously used by the Southern Pacific Railroad to haul trains through long, smoky mountain tunnels and snow sheds in the American West.

Observed surface forms (1)

Surface form Occurrences
Southern Pacific 4294 1

Statements (49)

Predicate Object
instanceOf Mallet-type locomotive ⓘ
articulated locomotive ⓘ
cab-forward locomotive ⓘ
steam locomotive ⓘ
classificationBySP AC-10 ⓘ
AC-11 ⓘ
AC-12 ⓘ
AC-4 ⓘ
AC-5 ⓘ
AC-5 ⓘ
surface form: AC-6

AC-7 ⓘ
AC-8 ⓘ
AC-9 ⓘ
country United States of America ⓘ
surface form: United States
designedFor crew safety ⓘ
operation in long tunnels ⓘ
operation in snow sheds ⓘ
eraOfOperation early 20th century ⓘ
mid 20th century ⓘ
fuelType oil ⓘ
historicalSignificance iconic locomotive of Southern Pacific Railroad ⓘ
unusual cab-forward design rare in world railroading ⓘ
introducedBy Southern Pacific Railroad ⓘ
surface form: Southern Pacific Railroad mechanical department
notableFeature articulated engine units ⓘ
boiler located behind cab ⓘ
cab located at front of locomotive ⓘ
operator Southern Pacific Railroad ⓘ
powerType steam ⓘ
preservedExample Southern Pacific Cab Forward locomotive self-linksurface differs ⓘ
surface form: Southern Pacific 4294
preservedExampleLocation California State Railroad Museum ⓘ
primaryRegionOfOperation Old West ⓘ
surface form: American West

Cascade Range ⓘ
Sierra Nevada ⓘ
primaryUse freight service ⓘ
mountain railroading ⓘ
railroadLineUsedOn Cascade Line ⓘ
Donner Pass ⓘ
surface form: Donner Pass route

Overland Route (historic) ⓘ
surface form: Overland Route

Sierra Nevada transportation corridor ⓘ
surface form: Shasta Route
railroadSafetyIssueAddressed asphyxiation risk in tunnels ⓘ
poor visibility in smoke-filled snow sheds ⓘ
reasonForFuelChoice oil firing allowed cab-forward arrangement ⓘ
smokeManagement reduced crew exposure to smoke and fumes ⓘ
status retired from regular service ⓘ
successorTractionType diesel-electric locomotive ⓘ
trackGauge standard gauge ⓘ
tractionType adhesion ⓘ
typicalWheelArrangement 2-8-8-4 ⓘ
4-8-8-2 ⓘ

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

California State Railroad Museum → notableItem → Southern Pacific Cab Forward locomotive ⓘ
Southern Pacific Cab Forward locomotive → preservedExample → Southern Pacific Cab Forward locomotive self-linksurface differs ⓘ
this entity surface form: Southern Pacific 4294