Southern Pacific AC-6
E693824
The Southern Pacific AC-6 was a class of massive articulated cab-forward steam locomotives used by the Southern Pacific Railroad, notable for their distinctive design optimized for long mountain tunnels and heavy freight service.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
articulated locomotive class
ⓘ
steam locomotive class ⓘ |
| boilerPressure | 250 psi ⓘ |
| brakeType | air brakes ⓘ |
| buildDate | 1930 ⓘ |
| buildEndDate | 1930 ⓘ |
| builder | Baldwin Locomotive Works NERFINISHED ⓘ |
| buildStartDate | 1930 ⓘ |
| category |
4-8-8-2 locomotives
ⓘ
Southern Pacific Railroad locomotives NERFINISHED ⓘ articulated steam locomotives ⓘ cab-forward steam locomotives ⓘ oil-fired steam locomotives ⓘ |
| classPredecessor | Southern Pacific AC-5 NERFINISHED ⓘ |
| classSuccessor | Southern Pacific AC-7 NERFINISHED ⓘ |
| configuration | 4-8-8-2 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| cylinderArrangement | simple articulated ⓘ |
| cylinderCount | 4 ⓘ |
| designer | Southern Pacific Railroad NERFINISHED ⓘ |
| disposition | all units scrapped ⓘ |
| driverDiameter | 63 in ⓘ |
| era | early 20th century ⓘ |
| fleetNumbers | Southern Pacific 4100–4149 NERFINISHED ⓘ |
| fuelType | fuel oil ⓘ |
| gauge | 4 ft 8 1⁄2 in (1,435 mm) ⓘ |
| introduced | 1930 ⓘ |
| notableFeature |
articulated frame for sharp curves
ⓘ
cab located at front of locomotive ⓘ designed for long tunnels and snow sheds ⓘ |
| numberInPreservation | 0 ⓘ |
| operator | Southern Pacific Railroad NERFINISHED ⓘ |
| powerType | steam ⓘ |
| primaryUse | heavy freight service ⓘ |
| railroad | Southern Pacific Railroad NERFINISHED ⓘ |
| railwayCompany | Southern Pacific Railroad NERFINISHED ⓘ |
| railwayPreserved | none ⓘ |
| region |
United States of America
ⓘ
surface form:
United States
|
| retired | 1950s ⓘ |
| totalProduced | 50 ⓘ |
| trackGauge | standard gauge ⓘ |
| tractiveEffort | 124300 lbf ⓘ |
| UICClassification | (2′D)D2′ h4 ⓘ |
| usedBy | Southern Pacific Railroad NERFINISHED ⓘ |
| usedFor | mountain freight trains ⓘ |
| usedOn | Sierra Nevada routes ⓘ |
| valveGear | Walschaerts NERFINISHED ⓘ |
| whyNotable | cab-forward design for long mountain tunnels ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.