Cab-forward steam locomotives
E905529
Cab-forward steam locomotives were a distinctive type of steam engine with the crew cab placed at the front of the locomotive to improve visibility and reduce smoke exposure, most famously used by the Southern Pacific Railroad in mountainous terrain.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
railway locomotive configuration
ⓘ
steam locomotive type ⓘ |
| associatedWithRegion | western United States NERFINISHED ⓘ |
| associatedWithTerrain | mountainous terrain ⓘ |
| category | steam locomotives with non-standard cab placement ⓘ |
| designedFor |
improved crew visibility
ⓘ
operation in long mountain tunnels ⓘ operation in snow sheds ⓘ reduced crew exposure to smoke and fumes ⓘ |
| designInfluencedBy | operating conditions on Southern Pacific mountain routes ⓘ |
| distinctFrom | conventional rear-cab steam locomotives ⓘ |
| hasCharacteristic |
boiler located behind cab
ⓘ
crew cab located at front of locomotive ⓘ smokebox located behind cab ⓘ unconventional running direction compared to standard steam locomotives ⓘ |
| historicalPeriodOfUse |
early 20th century
ⓘ
mid 20th century ⓘ |
| notableExample |
Southern Pacific AC-10 class
NERFINISHED
ⓘ
Southern Pacific AC-11 class NERFINISHED ⓘ Southern Pacific AC-12 class NERFINISHED ⓘ Southern Pacific AC-4 class NERFINISHED ⓘ Southern Pacific AC-5 class NERFINISHED ⓘ Southern Pacific AC-6 class NERFINISHED ⓘ Southern Pacific AC-7 class NERFINISHED ⓘ Southern Pacific AC-8 class NERFINISHED ⓘ Southern Pacific AC-9 class NERFINISHED ⓘ |
| notableSurvivor | Southern Pacific 4294 NERFINISHED ⓘ |
| notableUser | Southern Pacific Railroad NERFINISHED ⓘ |
| operatedOn |
Cascade Range routes
ⓘ
Sierra Nevada routes ⓘ |
| operationalAdvantage |
better visibility in curves
ⓘ
improved crew working conditions in snow sheds ⓘ improved crew working conditions in tunnels ⓘ less smoke in crew cab ⓘ |
| operationalDisadvantage |
complex mechanical layout
GENERATED
ⓘ
increased crew exposure in case of collision GENERATED ⓘ limited suitability for coal firing GENERATED ⓘ |
| preservedAt | California State Railroad Museum NERFINISHED ⓘ |
| reasonForOilFuel | avoid long steam pipe runs from rear fuel bunker ⓘ |
| replacedBy |
conventional-cab diesel locomotives
ⓘ
diesel-electric locomotives ⓘ |
| safetyMotivation |
reduce asphyxiation risk for crews
ⓘ
reduce smoke accumulation in tunnels ⓘ |
| status | largely retired ⓘ |
| typicalFuel | oil ⓘ |
| typicalType | articulated locomotive GENERATED ⓘ |
| typicalWheelArrangement | 4-8-8-2 ⓘ |
| usedBy | Southern Pacific Railroad NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Southern Pacific Railroad