Santa Fe 5011 class | |
Powertype: | Steam |
Builder: | Baldwin Locomotive Works |
Serialnumber: | 70817-70841 |
Builddate: | 1944 |
Totalproduction: | 25 |
Whytetype: | 2-10-4 |
Uicclass: | 1′E2′ h2 |
Driverdiameter: | 740NaN0 |
Wheelbase: | Loco & tender: 98.642NaN2 |
Length: | 123inchesft5inchesin (ftin) |
Height: | 16inchesft0inchesin (ftin) |
Axleload: | 76060abbr=inNaNabbr=in |
Weightondrivers: | 380300abbr=inNaNabbr=in |
Locoweight: | 538000abbr=inNaNabbr=in |
Tenderweight: | 464700abbr=inNaNabbr=in |
Locotenderweight: | 1002700abbr=inNaNabbr=in |
Fueltype: | Fuel oil |
Fuelcap: | 7000usgal |
Watercap: | 24500usgal |
Firearea: | 121.7square feet |
Boiler: | 104inches |
Boilerpressure: | 3102NaN2 |
Fireboxarea: | 494square feet |
Superheaterarea: | 2640square feet |
Cylindercount: | Two |
Cylindersize: | 30x |
Valvegear: | Walschaert |
Maxspeed: | 70mph |
Poweroutput: | 5660hp @ 40mph (drawbar) |
Tractiveeffort: | 930002NaN2 |
Factorofadhesion: | 4.06 |
Operator: | Santa Fe |
Operatorclass: | 5011 |
Fleetnumbers: | 5011–5035 |
Retiredate: | 1950-1959 |
Preservedunits: | Four (Nos. 5011, 5017, 5021 and 5030) preserved |
Scrapdate: | 1953-1963 |
Disposition: | Nos. 5011, 5017, 5021 and 5030 on display, remainder scrapped |
The Atchison, Topeka and Santa Fe Railway class 5011 was the last class of steam locomotives to be purchased by AT&SF. The class was introduced by Baldwin Locomotive Works in 1944.
A total of 25 of these large engines were built. They were nicknamed "War Babies" by the AT&SF from being built and used during World War II.
The AT&SF ran the class from the mid-1940s to the mid-late 1950s. Despite being mainly freight haulers, their driving wheels were unusually tall for a "Texas" type, which led to them also being successful in passenger service.[1]
Numbers 5011 to 5035, when built, were the largest and fastest class of "Texas"-type locomotives ever built and equipped with Timken roller bearings on every axle.
The engines had a maximum output of measured at the rear of the tender, at a top speed of 70mph.
Four of the class 5011 locomotives were preserved by the AT&SF for museums, with the remainder being scrapped.
The four preserved locomotives are: