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Tender Locomotives 2-10-4 “Texas”[Inhalt]
UIC Classification 1'E2'
Bessemer & Lake Erie class H-1
United States | 1929
47 produced
H-1b No. 603
H-1b No. 603
LaMar M. Kelley / collection Taylor Rush

In the late twenties, the Bessemer & Lake Erie as a part of U.S. Steel needed more powerful locomotives to move their heavy ore trains from the Lake Erie port of Conneaut, Ohio to Pittsburgh, Pennsylvania over grades of up to one percent. Since they didn't like articulated locomotives and wanted a proven non-articulated design, they ordered a 2-10-4 from Baldwin that was delivered in 1929.

This locomotive, numbered 601, was based on the Burlington class M-4 and was one of the heaviest and most powerful non-articulated locomotives of the time at a service weight of 502,630 pounds without a tender. It had drivers of 64 inches (1,626 mm) and cylinders of 31 by 32 inches. Together with its trailing truck booster, it developed a tractive effort of 115,206 pounds. Its boiler produced up to 4,690 hp

The prototype was designated class H-1a and was the first of a total of 47 locomotives. With several batches following in the years 1930, 1936, 1937 and 1941 to 1944, the subclasses H-1b to H-1g were created. With the exception of ten H-1d built by ALCO in 1937, all were built by Baldwin. Over time, they got heavier with the last batches weighing 524,440 pounds. The axle loading rose from 72,100 pounds, what was already high, to 75,984 pounds. Together with tender, they exceeded a total weight of 450 tons.

In Service, three locomotives each were used to haul 13,000 ton ore trains over the one percent grade. When the B&LE dieselized in the early fifties, 18 were sold to the Duluth, Missabe & Iron Range Railway, which was also a part of U.S. Steel. There they became classes E-4 to E-7 and were used until 1961. The B&LE already retired the others in 1952. The only one that survived is H-1g No. 643 that today is being stored at McKees Rocks, Pennsylvania.

General
Built1929-1943
ManufacturerBaldwin, ALCO
Axle config2-10-4 (Texas) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase45 ft 6 in
Rigid wheelbase22 ft 4 in
Total wheelbase95 ft 3 in
Service weight524,440 lbs
Adhesive weight372,277 lbs
Total weight906,990 lbs
Axle load75,984 lbs
Water capacity23,000 us gal
Fuel capacity52,000 lbs (coal)
Boiler
Grate area106.5 sq ft
Firebox area576 sq ft
Tube heating area5,336 sq ft
Evaporative heating area5,912 sq ft
Superheater area2,487 sq ft
Total heating area8,399 sq ft
Power Plant
Driver diameter64 in
Boiler pressure250 psi
Expansion typesimple
Cylinderstwo, 31 x 32 in
Power
Power sourcesteam
Indicated power4,690 hp (3,497 kW)
Optimal speed29 mph
Top speed50 mph
Starting effort102,106 lbf
Booster13,100 lbf
Calculated Values
steam locomotive
freight
booster
last changed: 09/2024
Canadian Pacific class T1 “Selkirk”
Canada | 1929
36 produced
No. 5927 refueling in South Edmonton in the summer of 1957
No. 5927 refueling in South Edmonton in the summer of 1957
Gordon Hunter
VariantT-1aT-1b, c
General
Built19291938, 1949
ManufacturerMontreal Locomotive Works
Axle config2-10-4 (Texas) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase46 ft 1/4 in46 ft
Rigid wheelbase22 ft46 ft
Total wheelbase87 ft 1/2 in87 ft 5 in
Service weight452,500 lbs447,000 lbs
Adhesive weight312,800 lbs310,000 lbs
Total weight750,000 lbs731,000 lbs
Water capacity14,400 us gal
Fuel capacity4,920 lbs (oil)
Boiler
Grate area93.5 sq ft
Firebox area422 sq ft412 sq ft
Tube heating area4,509 sq ft4,642 sq ft
Evaporative heating area4,931 sq ft5,054 sq ft
Superheater area2,112 sq ft2,032 sq ft
Total heating area7,043 sq ft7,086 sq ft
VariantT-1aT-1b, c
Power Plant
Driver diameter63 in
Boiler pressure275 psi285 psi
Expansion typesimple
Cylinderstwo, 25 1/2 x 32 intwo, 25 x 32 in
Power
Power sourcesteam
Estimated power4,500 hp (3,356 kW)4,900 hp (3,654 kW)
Optimal speed37 mph41 mph
Starting effort77,204 lbf76,905 lbf
Calculated Values
steam locomotive
freight
passenger
Canadian Pacific class T4a
Canada | 1931
only one produced
General
Built1931
ManufacturerAngus Shops
Axle config2-10-4 (Texas) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length98 ft 9 1/16 in
Service weight495,040 lbs
Total weight796,320 lbs
Water capacity12,000 us gal
Fuel capacity4,100 lbs (oil)
Boiler
Grate area77 sq ft
Firebox area520 sq ft
Tube heating area3,746 sq ft
Evaporative heating area4,266 sq ft
Superheater area753.5 sq ft
Total heating area5,019.5 sq ft
Power Plant
Driver diameter63 in
Boiler pressure870 psi
Expansion typecompound
Cylindersthree, HP: 15 1/2 x 28 in
and LP: 24 x 30 in
Power
Power sourcesteam
Estimated power5,000 hp (3,729 kW)
Optimal speed32 mph
Starting effort99,145 lbf
with start valve118,974 lbf
Calculated Values
steam locomotive
freight
high pressure
prototype
Kansas City Southern class J
United States | 1937
10 produced
Ron Ziel, „American Locomotives 1858 to 1949”

After the KCS had been a friend of Mallets for a long time, they procured a total of ten locomotives with the wheel arrangement 2-10-4 in 1937. Five each were coal and oil fired. This was the first time a boiler of this size has been used with a boiler pressure of 310 psi or 21.4 bars. They achieved an indicated power of 4,825 hp and minus the mass of the locomotive and tender there was still 4,475 hp left at the draw bar. During the Second World War, they were also used to transport troops, and with their 70-inch driving wheels they were able to keep to the timetables of passenger trains. They were replaced by diesel locomotives in 1952 and 1953 and scrapped in 1954.

Variantcoaloil
General
Built1937
ManufacturerLima
Axle config2-10-4 (Texas) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase48 ft 8 1/2 in
Rigid wheelbase24 ft 4 in
Total wheelbase98 ft 5 in
Service weight514,000 lbs509,000 lbs
Adhesive weight353,300 lbs
Total weight868,690 lbs857,000 lbs
Axle load75,000 lbs
Water capacity21,000 us gal21,700 us gal
Fuel capacity60,000 lbs (coal)4,500 us gal (oil)
Boiler
Grate area107 sq ft
Firebox area502 sq ft
Tube heating area4,652 sq ft
Evaporative heating area5,154 sq ft
Superheater area2,075 sq ft
Total heating area7,229 sq ft
Variantcoaloil
Power Plant
Driver diameter70 in
Boiler pressure310 psi
Expansion typesimple
Cylinderstwo, 27 x 34 in
Power
Power sourcesteam
Estimated power4,825 hp (3,598 kW)
Optimal speed33 mph
Starting effort93,302 lbf
Calculated Values
steam locomotive
freight
last changed: 04/2023
Pennsylvania class J1
United States | 1942
125 produced
Builder's photo of No. 6456
Builder's photo of No. 6456

To meet the increased demand for heavy freight locomotives during the Second World War, the PRR turned to the C&O and used their T-1 as the basis for their J1. Because of this origin, they were given the nickname “War Babies” and were ultimately the largest 2-10-4 “Texas” class in terms of numbers with 125. They were built at the PRR's Juniata Works in Altoona.

With the booster on the trailing truck they achieved a starting tractive effort of 110,100 pounds (490 kN), while the boiler output of 5,644 hp was sufficient for higher speeds with heavy freight trains. Some of the locomotives had a frame cast in one piece. Depending on the source, these were the 60 members of subclass J1a.

No. 6405 in July 1952 at Chicago
No. 6405 in July 1952 at Chicago
collection Taylor Rush

A teething problem of the J1 was its rough running, which apparently arose from a mistake when taking over the blueprints from the C&O. This was soon fixed and at the same time the drivers were enlarged from 69 to 70 inches. With the switch to diesel, they became dispensable in their original role in the late 1940s. However, the PRR also found enough other tasks for them so that they were only retired between 1957 and 1959.

General
Built1942-1944
ManufacturerAltoona
Axle config2-10-4 (Texas) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length117 ft 8 in
Wheelbase49 ft 3 in
Rigid wheelbase24 ft 4 in
Total wheelbase104 ft 0 1/2 in
Service weight572,640 lbs
Adhesive weight377,800 lbs
Total weight984,140 lbs
Axle load76,800 lbs
Water capacity21,000 us gal
Fuel capacity60,000 lbs (coal)
Boiler
Grate area121.7 sq ft
Firebox area525 sq ft
Tube heating area5,995 sq ft
Evaporative heating area6,520 sq ft
Superheater area2,931 sq ft
Total heating area9,451 sq ft
Power Plant
Driver diameter69 in
Boiler pressure275 psi
Expansion typesimple
Cylinderstwo, 29 x 34 in
Power
Power sourcesteam
Indicated power5,644 hp (4,209 kW)
Optimal speed37 mph
Top speed50 mph
Starting effort96,867 lbf
Booster15,000 lbf
Calculated Values
steam locomotive
freight
booster
last changed: 12/2023
View on YouTube
Santa Fe No. 5000
United States | 1930
only one produced
Baldwin factory photo
Baldwin factory photo

As early as 1919, the Santa Fe converted a class 3800 2-10-2 locomotive into a 2-10-4, creating the world's first locomotive with this wheel arrangement. This was done by exchanging the rear carrying axle for a bogie, while slightly increasing the boiler's heating surface. However, since the firebox was not enlarged, the gains in performance were limited and it remained a one-off. However, since the Texas & Pacific had built the first 2-10-4 in series from 1925, this type was called “Texas”. It was not until 1930 that the Santa Fé built engine number 5000 directly as 2-10-4, which soon became known as “Madame Queen”.

The boiler was designed to be significantly more powerful with a grate area of more than 120 square feet, three thermic syphons and a total heating surface increased by 34%. This made the locomotive significantly heavier and reached a maximum axle load of more than 76,000 pounds. The tender was also very large with a total weight of 375,000 pounds, which was carried on six axles. It held 20,000 gallons of water and 46,000 pounds of coal. Compared to its predecessor, it could tow 15% more weight in 9% less time with 17% less coal per ton-mile. It formed the basis for the classes 5001 and 5011 and remained in service just as long as these, i.e. until 1957.

General
Built1930
ManufacturerBaldwin
Axle config2-10-4 (Texas) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase47 ft 7 in
Rigid wheelbase24 ft 6 in
Total wheelbase99 ft 7 in
Service weight502,600 lbs
Adhesive weight372,000 lbs
Total weight877,600 lbs
Axle load76,570 lbs
Water capacity20,000 us gal
Fuel capacity46,000 lbs (coal)
Boiler
Grate area121.8 sq ft
Firebox area598 sq ft
Tube heating area5,516 sq ft
Evaporative heating area6,114 sq ft
Superheater area2,741 sq ft
Total heating area8,855 sq ft
Power Plant
Driver diameter69 in
Boiler pressure300 psi
Expansion typesimple
Cylinderstwo, 30 x 34 in
Power
Power sourcesteam
Estimated power5,580 hp (4,161 kW)
Optimal speed31 mph
Starting effort113,087 lbf
Calculated Values
steam locomotive
freight
last changed: 03/2022
Santa Fe class 5001
United States | 1938
10 produced
No. 5010 in February 1939 in Barstow, California
No. 5010 in February 1939 in Barstow, California
Joseph Schick / archive Taylor Rush

As a direct development of locomotive number 5000, ten units were built in 1938, which were given the numbers 5001 to 5010. They differed from their predecessors primarily in the significantly larger driving wheels. These measured 74 inches in diameter and allowed the locomotives to run at up to 70 mph without any problems, although they were actually only intended as freight locomotives. The boilers had a slightly smaller total heating area, but the firebox area was larger and the boiler pressure had been increased from 300 to 310 psi. This resulted in a cylinder output of more than 6,000 hp, which almost compensated for the loss of traction due to the larger wheels.

No. 5004 on a factory photo
No. 5004 on a factory photo
Ron Ziel, „American Locomotives 1858 to 1949”

The cylinders were cast in one piece with the frame, resulting in a single component weighing approximately 87,000 pounds. The first five locomotives got tenders with a lower curb weight, which now held 21,000 gallons of water and 52,000 pounds of coal and still only came loaded to 366,200 pounds. The last five locomotives were oil-fired, with tenders holding 20,000 gallons of water and 7,000 gallons of oil. Another development followed six years later in the form of the class 5011.

Variant5001-50065007-5010
General
Built1938
ManufacturerBaldwin
Axle config2-10-4 (Texas) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase50 ft 2 1/2 in
Rigid wheelbase26 ft 2 1/2 in
Total wheelbase98 ft 8 in
Service weight545,260 lbs
Adhesive weight371,600 lbs
Total weight911,460 lbs
Axle load76,551 lbs
Water capacity21,000 us gal
Fuel capacity52,000 lbs (coal)7,000 us gal (oil)
Boiler
Grate area121.8 sq ft
Firebox area631 sq ft
Tube heating area5,444 sq ft
Evaporative heating area6,075 sq ft
Superheater area2,675 sq ft
Total heating area8,750 sq ft
Variant5001-50065007-5010
Power Plant
Driver diameter74 in
Boiler pressure310 psi
Expansion typesimple
Cylinderstwo, 30 x 34 in
Power
Power sourcesteam
Estimated power5,700 hp (4,250 kW)5,800 hp (4,325 kW)
Optimal speed33 mph34 mph
Top speed70 mph
Starting effort108,961 lbf
Calculated Values
steam locomotive
freight
last changed: 03/2022
Santa Fe class 5011
United States | 1944
25 produced
No. 5025
No. 5025
Harold K. Vollrath

Although the Santa Fe was already in the midst of converting freight traffic from steam to diesel during World War II, it procured 25 more steam locomotives of the 2-10-4 wheel arrangement in 1944. They were all delivered with oil firing, got the numbers 5011 to 5035 and were also called “War Babies”. Despite a smaller firebox, the performance of the boiler could be kept almost the same. By distributing the weight differently, it was possible to increase the adhesive weight by four tons while the locomotive weight had fallen by four tons. Significantly heavier tenders with eight axles were used again, which held 24,500 gallons of water and 7,000 gallons of oil. This lifted the total weight of the locomotive and tender to just over the magic one million pound mark.

In 1944, measurements of the performance of the first locomotive in the batch were made, which led to sensational values. In one test, a five-mile grade of a constant 0.8 percent was climbed by a train of 94 cars weighing about 5,440 tons. From an initial speed of 56 mph, there was still 18 mph left at the top of the incline, where most other locomotives would have come to a standstill long ago. With these performances, the locomotives can certainly be described as the pinnacle of the single-frame steam locomotives, as they were only surpassed by articulated locomotives and more driving axles overall. They, too, made their last commercial journeys in 1957 and stood in reserve for another two years before almost all of them were scrapped. Four examples are still preserved today, none of which are operational.

General
Built1944
ManufacturerBaldwin
Axle config2-10-4 (Texas) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length123 ft 5 in
Wheelbase50 ft 3 in
Rigid wheelbase26 ft 2 in
Total wheelbase109 ft 8 in
Service weight536,000 lbs
Adhesive weight380,300 lbs
Total weight1,000,700 lbs
Axle load77,400 lbs
Water capacity24,500 us gal
Fuel capacity7,170 us gal (oil)
Boiler
Grate area121.5 sq ft
Firebox area494 sq ft
Tube heating area5,443 sq ft
Evaporative heating area5,937 sq ft
Superheater area2,589 sq ft
Total heating area8,526 sq ft
Power Plant
Driver diameter74 in
Boiler pressure310 psi
Expansion typesimple
Cylinderstwo, 30 x 34 in
Power
Power sourcesteam
Estimated power5,660 hp (4,221 kW)
Optimal speed33 mph
Top speed70 mph
Starting effort108,961 lbf
Calculated Values
steam locomotive
freight
last changed: 03/2022
View on YouTube
Texas & Pacific class I-1
United States | 1925
70 produced
collection Richard Driver

The first locomotives that were built from the start with the 2-10-4 wheel arrangement were the ten members of the class I-1 of the Texas and Pacific from 1925. The goal in the development was to create a ten-coupled freight locomotive with a larger firebox to provide greater power at higher speeds. Since the Santa Fe had just rebuilt the first locomotive with this wheel arrangement from a different one, this wheel arrangement was now called “Texas”.

They had oil burning and a grate with an area of 100 square feet or 9.29 m². The area of the firebox was increased with a combustion chamber and two thermic syphons. There was also a booster in the trailing bogie and an Elesco feed water heater.

The ten I-1s had a driver diameter of 63.5 inches (1,613 mm) and a boiler pressure of 250 psi (17.25 bars). Between 1927 and 1929, four batches of 15 each were built, designated I-1a to I-1d. They now had a driver diameter of only 63 inches and a boiler pressure of 255 psi. They were also 4,000 pounds heavier, or another 5,000 pounds on the I-1d.

Although their service life was already coming to an end in 1948, three were equipped with Timken roller bearings on all axles and designated Class I-2. By the early 1950s all but the 610 and 638 were scrapped. While the 638 was also scrapped two years later, the 610 was preserved. It pulled the American Freedom Train in the 1970s and has not been operational since 1982. Today she can be found in Palestine, Texas

VariantI-1I-1a to d
General
Built19251927-1929
ManufacturerLima
Axle config2-10-4 (Texas) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase46 ft 8 1/2 in
Rigid wheelbase22 ft
Total wheelbase86 ft 9 in
Service weight448,000 lbs452,000 lbs
Adhesive weight300,000 lbs303,000 lbs
Total weight725,166 lbs729,166 lbs
Axle load60,000 lbs60,600 lbs
Water capacity14,000 us gal
Fuel capacity5,000 us gal (oil)
Boiler
Grate area100 sq ft
Firebox area473 sq ft
Tube heating area4,640 sq ft
Evaporative heating area5,113 sq ft
Superheater area2,100 sq ft
Total heating area7,213 sq ft
VariantI-1I-1a to d
Power Plant
Driver diameter63.5 in63 in
Boiler pressure250 psi255 psi
Expansion typesimple
Cylinderstwo, 29 x 32 in
Power
Power sourcesteam
Estimated power4,450 hp (3,318 kW)4,500 hp (3,356 kW)
Optimal speed31 mph
Starting effort90,060 lbf92,590 lbf
Booster13,300 lbf
Calculated Values
steam locomotive
freight
last changed: 01/2024
View on YouTube
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