Southern Pacific AC-8
E698321
The Southern Pacific AC-8 was a class of massive articulated cab-forward steam locomotives used by the Southern Pacific Railroad for heavy freight service over steep mountain grades in the late steam era.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
articulated locomotive class
ⓘ
steam locomotive class ⓘ |
| boilerPressure | 250 psi ⓘ |
| brakeType | air brakes ⓘ |
| buildDateRange | 1939–1940 ⓘ |
| builder | Baldwin Locomotive Works NERFINISHED ⓘ |
| cabLocation | front of locomotive ⓘ |
| classFamily | Southern Pacific AC cab-forward series NERFINISHED ⓘ |
| configuration | 4-8-8-2 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| cylinderArrangement | simple articulated ⓘ |
| cylinderCount | 4 ⓘ |
| cylinderSize | 24 in × 32 in ⓘ |
| designer | Southern Pacific Railroad NERFINISHED ⓘ |
| disposition | all units scrapped ⓘ |
| driverDiameter | 63 in ⓘ |
| era | late steam era ⓘ |
| fireboxType | conventional fire-tube boiler ⓘ |
| fleetNumbers | 4177–4204 ⓘ |
| followedByClass | Southern Pacific AC-9 NERFINISHED ⓘ |
| frameType | articulated ⓘ |
| fuelType | bunker oil ⓘ |
| gauge | standard gauge ⓘ |
| introduced | 1939 ⓘ |
| locomotiveWeight | approx 657000 lb ⓘ |
| nickname | cab-forward ⓘ |
| notableFeature | cab-forward design for crew comfort in tunnels and snow sheds ⓘ |
| numberBuilt | 28 ⓘ |
| operatedUntilApprox | late 1950s ⓘ |
| operator | Southern Pacific Railroad NERFINISHED ⓘ |
| powerType | steam ⓘ |
| precededByClass | Southern Pacific AC-7 NERFINISHED ⓘ |
| preservedUnits | 0 ⓘ |
| primaryRouteType | mountain grades ⓘ |
| primaryUse | heavy freight service ⓘ |
| railwayCompany | Southern Pacific Railroad NERFINISHED ⓘ |
| railwayRegion | Western United States NERFINISHED ⓘ |
| railwayRole | mountain freight hauler ⓘ |
| retirementPeriod | 1950s ⓘ |
| serviceType | freight ⓘ |
| tenderType | oil-fired tender ⓘ |
| tractiveEffort | 124300 lbf ⓘ |
| typicalServiceArea |
Cascade Range
NERFINISHED
ⓘ
Sierra Nevada NERFINISHED ⓘ |
| UICClassification | (2′D)D2′ h4 ⓘ |
| weightOnDrivers | approx 514000 lb ⓘ |
| whyteType | 4-8-8-2 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.