Santa Fe Class 2900

The Santa Fe 2900 Class was a series of 30 4-8-4 Northern type steam locomotives built between 1943 and 1944 for Atchison, Topeka and Santa Fe Railroad and pulled freight and passenger trains until retirement in the mid to late 1950s.

Atchison, Topeka & Santa Fe 2900 Class
Eastbound freight on the Santa Fe pulled by Santa Fe 2914 on August 22, 1952.
Type and origin
Power typeSteam
BuilderBaldwin Locomotive Works
Build date1943-1944
Total produced30
Specifications
Configuration:
​
 • Whyte4-8-4
 • UIC2′D2′ h2
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Driver dia.80 in (2,032 mm)
Length120 ft 10 in (36.83 m)
Axle load77,500 lb (35,200 kg)
Adhesive weight293,860 lb (133,290 kg)
Loco weight510,150 lb (231,400 kg)
Tender weight464,700 lb (210,800 kg)
Total weight974,850 lb (442,180 kg)
Fuel typeOil
Fuel capacity7,000 US gal (26,000 l; 5,800 imp gal)
Water cap24,500 US gal (93,000 l; 20,400 imp gal)
Firebox:
 • Firegrate area		108 sq ft (10.0 m2)
Boiler pressure300 lbf/in2 (2.1 MPa)
Cylinders2
Cylinder size28 in × 32 in (711 mm × 813 mm)
Valve gearWalschaert
Valve typePiston valves
Performance figures
Maximum speed120 mph (190 km/h)
Power output4,590 hp (3,420 kW) @ 40 mph
Tractive effort79,968 lbf (355.72 kN)
Factor of adh.3.67
Career
OperatorsSanta Fe
Class2900
Numbers2900-2929
Retired1953-1959
PreservedSix (Nos. 2903, 2912, 2913, 2921, 2925 and 2926) preserved
DispositionFive on display and one (2926) under restoration to operating condition, remainder scrapped

Today, six 2900s survive, with most on static display and one, No. 2926, being restored to operating condition. Once fully restored, it will be the largest operating 4-8-4 Northern type steam locomotive in the United States.

History

Being built during World War II, wartime shortages of material resulted in ordinary metals being used for their construction. This resulted in the class being the heaviest Northerns ever built. They out-weighed their nearest rivals by over 2000 pounds. They have Timken roller bearing on all axles.[1]

Though they were designed to haul passenger trains, wartime exigencies required that they haul freight until the war ended. After the war, they hauled passenger trains such as the Scout and Grand Canyon Limited. After diesels took over, the class was retired by 1959.

Preservation

Six 2900s survived into preservation:

Roster
NumberBaldwin serial numberDate builtDispositionNotes
2900697881943Sold for scrap.
2901697891943Sold for scrap.
2902697901943Sold for scrap.
2903697911943On display at the Illinois Railway Museum in Union, Illinois.
2904697921943Sold for scrap.
2905697931943Sold for scrap.
2906697941943Sold for scrap.
2907697951943Sold for scrap.
2908697961943Sold for scrap.
2909697971943Sold for scrap.
2910697981943Sold for scrap.
2911697991943Sold for scrap.
2912698011943On display in Pueblo, Colorado.
2913698001944On display in Fort Madison, Iowa.
2914698021944Sold for scrap.
2915698031944Sold for scrap.
2916698041944Sold for scrap.
2917698051944Sold for scrap
2918698061944Sold for scrap.
2919698071944Sold for scrap.
2920698081944Sold for scrap.
2921698091944On display at the Amtrak Station in Modesto, California.
2922698101944Sold for scrap.
2923698111944Sold for scrap.
2924698121944Sold for scrap.
2925698131944On display at the California State Railroad Museum in Sacramento, California.
292669844March 1944Under restoration to operating condition in Albuquerque, New Mexico.On the National Register of Historic Places
2927698151944Sold for scrap.
2928698161944Sold for scrap.
2929698171944Sold for scrap.

References
  1. https://steamlocomotive.com/locobase.php?country=USA&wheel=4-8-4&railroad=atsf
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