SLSF: Fort Worth & Rio Grande / Gulf, Texas & Western / Jonesboro, Lake City & Eastern / St Louis, Memphis & Southeastern / St Louis-San Francisco 2-6-0 "Mogul" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 20/354 (Locobase 4145)

Data from [] and SL&SF - 1908 Description of All Equipment.. Works numbers were 2570-2571 (355-356) in February 1891; 2604-2606 in August.

Larger heating surface than the earlier Frisco Baldwins, but using a smaller grate. The longer wheelbase spread out the greater weight.

By the time these went to the Santa Fe in 1937 (Locobase 804), their boilers had given up 28 tubes, but gained a larger firebox.


Class 200/300 (Locobase 4148)

[] is the source for this data. Works numbers were 3704, 3707, 3711-3712 in February 1887.

Cost per small Mogul was $2,050 in 1886, not a bad price for these relatively powerful engines.

All were scrapped in 1915.


Class 3/365 (Locobase 8590)

Data from SL&SF All Time Loco Diagrams HS Pub supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. See Handbook of Texas Online, Elizabeth Lee Bass, "GULF, TEXAS AND WESTERN RAILROAD," accessed September 06, 2019, [] . Works numbers were 46648-46649 in October 1909 and 47633-47623 in April 1910.

This railroad lay northwest of Fort Worth. The first section of this railroad-- 75.6 miles (121.7 km) heading northwest from Jacksboro and Seymour, Texas--opened on 18 October 1909. These Moguls provided much of the motive power and constituted the first new locomotives bought by the railroad. 23.5 miles (37..8 km) in the opposite direction from Jacksboro to Salesville (the line's closest point to Fort Worth) opened on 26 March 1913.

They served that line for almost thirty years, 336 being "dismissed from service" in April 1936, 335 following in January 1938, and the last two being scrapped in February 1940.


Class 304 (Locobase 4143)

[] is the source for this See also DeGolyer, Volume 13, pp. 134 and 242. Baldwin's works numbers for this set of straight-boilered Moguls included 8230-31 and 8233 in November 1886 and 8777-8778, 8782-8784, 8786-8787, 8790, 8794-8795 in September 1887.

The boiler pressure shown was as ordered and the driver diameter was specified as 55 1/2". By the turn of the century, safety valves had been set to 145 psi and the drivers had been fitted with thicker tires.

Most of the class were scrapped after their service with the Frisco. But in 1913, the 309, 311, 312, and 314 were sent to the New Iberia & Northern of Iberia Parish, La as their 46, 43, 44, and 45, respectively. The NI&N came under the New Orleans, Texas & Mexico in 1917. Eventually, in 1925, all but the 45 were taken into the Missouri Pacific in class M-56. The 45 was sold in the same year to the Louisiana Southern as their 12.

This class was immediately followed by 20 wagon-top engines; see Locobase 4144.


Class 317 (Locobase 4144)

Data from [] . See also DeGolyer, Volume 14, p. 156. Works numbers ran nearly consecutively beginning at 9319, 9321-22, 9325-31 in June 1886, followed by 9359, 9364-65, 9368, 9370-74, and ending with 9377 in July.

This batch of 20 followed the 304s (Locobase 4143) , but had a slightly larger firebox created by the adoption of a wagon-top boiler.

Most were scrapped in 1915, although a few hung on into the 1920s. 322 and 336 were sold in 1913 to the New Iberia & Northern and became their #41 and #40, respectively. (The Texas-based NI&N was absorbed by the New Orleans, Texas & Mexico Railway in 1916 along with the Iberia, St Mary & Eastern - the two railroads boasted a total of 120.72 miles of tracks.)


Class 32 / 72 (Locobase 6778)

Data from SL&SF All Time Loco Diagrams HS Pub supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. See also DeGolyer, Vol 43, pp. 219+. Works numbers wer 39038-39039 in January 1913 and 43278-43279 in May 1916.

The JLC&E was an Arkansas short line built to serve the lumber country in the northeast part of the state. Like most lumber roads, the JLC&E easily earned the following warning in the 1916 specs for the 34-35: "Deck plates of cast steel to overcome trouble of breakage experienced with previous engines. The road is rough and the running gear, frames, springs etc., must be strong."

Finished in 1901, it operated independently until 1924 when the Frisco bought the road. This class of Moguls were part of the spoils and were renumbered 72-74. Ex-33 never went to the Frisco because it was sold to Southern Iron & Equipment in 1925.

The other were retained in service for years. 72 was "dismissed from service" in October 1937 at Chaffee, Missouri. 73-74 carried on through World War Two on the Frisco, but were sold in September 1945 to the Delta Valley & Southern, an Arkansas shortline that connected Delpro to Elkins. They may have served the DV & S only for a short while as the railroad abandoned much of its line in 1947.

NB: The direct heating surface (including the firebox heating surface) is an estimate calculated by subtracting the calculated tube heating surface from the reported total evaporative heating surface.


Class 34 (Locobase 14380)

Data from SL&SF All Time Loco Diagrams HS Pub supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. See also DeGolyer, Vol 45, pp. 316+. Works numbers were 43278-43279 in May 1916.

Three years after the JLC&E bought two Moguls (Locobase 6778) for its short-line service, it returned to Baldwin for two superheated variants. There were some bugs in the design. Locobase 8551 cautioned Eddystone that its 1921 Consolidations should have special attention devoted to ash-pan design because the component had warped on these 2-6-0s.

Both were sold off in September 1945, the 74 going to the scrapper (Merritt, Chapman, Scott Corp or Memphis) and 73 to the Delta Valley & Southern Railway.


Class 359 (Locobase 4146)

[] is the source for this data; see also SL&SF All Time Locomotives diagram book supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. See also DeGolyer, Volume 21, p. 64. Works numbers were 15532-15533 in October 1897 and 16581-16582 in March 1899.

This was a repeat order for the FW&RG with a larger boiler, but still the small grate and smaller cylinders. 361-362 were heavier at 106,500 lb on the drivers and 125,500 lb total engine weight.

Both were "dismissed from service" in July 1932.


Class 363 (Locobase 4147)

[] is the source for this data. Originally ordered for the St Louis, Memphis & Southeastern, these two engines (works # 8410, 8408, respectively) were taken into the Frisco fold in 1907.

Compared to other Frisco moguls, these engines had relatively large grates and a considerable amount of firebox heating surface. They only lasted a few years in Frisco service, going to the ferro-knacker's yard in June 1916 and July 1915, respectively.


Class 834 (Locobase 8589)

Data from SL&SF All Time Loco Diagrams HS Pub and SL&SF 7 - 1908 Description of All Equipment supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. See also DeGolyer, Volume 17, p. 236 and Volume 19, p. 66. Works numbers were:

1892

12576-12577 in March; 12580-12584, 12587, 12597, 12604-12605, 12607 in April

1894

13892-13893, 13895-13896, 13898 in January.

This class of Moguls came to the Frisco over a 22-month period. Compared to a class of Baldwin 2-6-0s delivered four years earlier, these had more tubes and a bigger boiler overall, but the grate area remained about the same.

Most were "dismissed" from the Frisco in the late 1920s. 346 went to the New Iberia & Northern Railroad in May 1916 as their #42, 345 was sold to the Cassville & Exeter Railway in Cassville, MO in June 1935.

Principal Dimensions by Steve Llanso of Sweat House Media
Class20/354200/3003/365304317
Locobase ID4145 4148 8590 4143 4144
RailroadFort Worth & Rio Grande (SLSF)St Louis-San Francisco (Frisco/(SLSF)Gulf, Texas & Western (SLSF)St Louis-San Francisco (Frisco/(SLSF)St Louis-San Francisco (Frisco/(SLSF)
CountryUSAUSAUSAUSAUSA
Whyte2-6-02-6-02-6-02-6-02-6-0
Number in Class5441320
Road Numbers20-21, 6, 22-23/355-356, 354, 358, 357200-203/300-3033-6/365-368204-216/304-316217-236/317-336
GaugeStdStdStdStdStd
Number Built5441320
BuilderRhode IslandRogersAlco-BrooksBurnham, Parry, Williams & CoBurnham, Parry, Williams & Co
Year18911887190918861888
Valve GearStephensonStephensonWalschaertStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)16.25 / 4.9515.50 / 4.7214 / 4.2715.17 / 4.6215.17 / 4.62
Engine Wheelbase (ft / m)23.83 / 7.2623.20 / 7.0721.83 / 6.6523.17 / 7.0622.92 / 6.99
Ratio of driving wheelbase to overall engine wheebase 0.68 0.67 0.64 0.65 0.66
Overall Wheelbase (engine & tender) (ft / m)46.17 / 14.0745.79 / 13.9653.42 / 16.2845.46 / 13.8645.62 / 13.90
Axle Loading (Maximum Weight per Axle) (lbs / kg)32,000 / 14,515
Weight on Drivers (lbs / kg)96,000 / 43,54583,375 / 37,81876,800 / 34,83681,600 / 37,013
Engine Weight (lbs / kg)112,000 / 50,802100,975 / 45,802137,000 / 62,14292,700 / 42,04897,000 / 43,999
Tender Loaded Weight (lbs / kg)84,000 / 38,10273,725 / 33,441120,000 / 54,43184,600 / 38,37484,600 / 38,374
Total Engine and Tender Weight (lbs / kg)196,000 / 88,904174,700 / 79,243257,000 / 116,573177,300 / 80,422181,600 / 82,373
Tender Water Capacity (gals / ML)4000 / 15.154000 / 15.156000 / 22.733900 / 14.773900 / 14.77
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)10 / 9.108 / 7.302450 / 9.308 / 7.308 / 7.30
Minimum weight of rail (calculated) (lb/yd / kg/m)53 / 26.5046 / 2343 / 21.5045 / 22.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)55 / 139756.50 / 143556 / 142256.50 / 143556.50 / 1435
Boiler Pressure (psi / kPa)145 / 10150 / 10.30180 / 12.40130 / 10145 / 10
High Pressure Cylinders (dia x stroke) (in / mm)19" x 24" / 483x61019" x 24" / 483x61019" x 26" / 483x66019" x 24" / 483x61019" x 24" / 483x610
Tractive Effort (lbs / kg)19,415 / 8806.5119,552 / 8868.6525,644 / 11631.9416,945 / 7686.1318,900 / 8572.91
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.94 4.26 4.53 4.32
Heating Ability
Firebox Area (sq ft / m2)120 / 11.15122 / 11.34156.30 / 14.53122 / 11.33132 / 12.27
Grate Area (sq ft / m2)17 / 1.5817 / 1.5830.20 / 2.8117.25 / 1.6017.25 / 1.60
Evaporative Heating Surface (sq ft / m2)1566 / 145.481377 / 127.972004 / 186.251454 / 135.081464 / 136.06
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1566 / 145.481377 / 127.972004 / 186.251454 / 135.081464 / 136.06
Evaporative Heating Surface/Cylinder Volume198.84174.84234.88184.62185.89
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation24652550543622432501
Same as above plus superheater percentage24652550543622432501
Same as above but substitute firebox area for grate area17,40018,30028,13415,86019,140
Power L136553564548532083682
Power MT251.81282.72276.27298.43

Principal Dimensions by Steve Llanso of Sweat House Media
Class32 / 7234359363834
Locobase ID6778 14,380 4146 4147 8589
RailroadJonesboro, Lake City & Eastern (SLSF)Jonesboro, Lake City & Eastern (SLSF)Fort Worth & Rio Grande (SLSF)St Louis, Memphis & Southeastern (SLSF)St Louis-San Francisco (Frisco/(SLSF)
CountryUSAUSAUSAUSAUSA
Whyte2-6-02-6-02-6-02-6-02-6-0
Number in Class224217
Road Numbers32-33 / 72-7334-35/74-75359-362363-364834-845/237-253/337-353
GaugeStdStdStdStdStd
Number Built224217
BuilderBaldwinBaldwinBurnham, Williams & CoBrooksBurnham, Williams & Co
Year19131916189718931892
Valve GearWalschaertWalschaertStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.50 / 3.5111.50 / 3.5116.25 / 4.9513.93 / 4.2515.17 / 4.62
Engine Wheelbase (ft / m)19.33 / 5.8919.33 / 5.8923.75 / 7.2421.57 / 6.5723.17 / 7.06
Ratio of driving wheelbase to overall engine wheebase 0.59 0.59 0.68 0.65 0.65
Overall Wheelbase (engine & tender) (ft / m)46.04 / 14.0346.25 / 14.1047.37 / 14.4447.57 / 14.5045.90 / 13.99
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)93,000 / 42,18496,000 / 43,54599,900 / 45,314102,000 / 46,26681,900 / 37,149
Engine Weight (lbs / kg)108,800 / 49,351111,500 / 50,576117,900 / 53,479118,000 / 53,524106,300 / 48,217
Tender Loaded Weight (lbs / kg)80,000 / 36,28780,000 / 36,28791,000 / 41,27787,000 / 39,46384,600 / 38,374
Total Engine and Tender Weight (lbs / kg)188,800 / 85,638191,500 / 86,863208,900 / 94,756205,000 / 92,987190,900 / 86,591
Tender Water Capacity (gals / ML)4000 / 15.154000 / 15.154000 / 15.154000 / 15.154000 / 15.15
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)6 / 5.506 / 5.5010 / 9.1010 / 9.108 / 7.30
Minimum weight of rail (calculated) (lb/yd / kg/m)52 / 2653 / 26.5056 / 2857 / 28.5046 / 23
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 127050 / 127055 / 139755 / 139755.50 / 1435
Boiler Pressure (psi / kPa)180 / 12.40180 / 12.40160 / 11160 / 11160 / 10
High Pressure Cylinders (dia x stroke) (in / mm)18" x 24" / 457x61018" x 24" / 457x61018" x 24" / 457x61019" x 24" / 483x61019" x 24" / 483x610
Tractive Effort (lbs / kg)23,795 / 10793.2423,795 / 10793.2419,228 / 8721.6821,424 / 9717.7721,231 / 9630.23
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.91 4.03 5.20 4.76 3.86
Heating Ability
Firebox Area (sq ft / m2)118.90 / 11.05128 / 11.89120 / 11.15180 / 16.73136 / 12.73
Grate Area (sq ft / m2)20.50 / 1.9020.80 / 1.9317 / 1.5821.70 / 2.0217.10 / 1.59
Evaporative Heating Surface (sq ft / m2)1263 / 117.341015 / 94.301703 / 158.271485 / 138.011581 / 147.03
Superheating Surface (sq ft / m2)218 / 20.25
Combined Heating Surface (sq ft / m2)1263 / 117.341233 / 114.551703 / 158.271485 / 138.011581 / 147.03
Evaporative Heating Surface/Cylinder Volume178.68143.59240.93188.55200.74
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation36903744272034722736
Same as above plus superheater percentage36904418272034722736
Same as above but substitute firebox area for grate area21,40227,18719,20028,80021,760
Power L139427676477944414249
Power MT280.34528.83316.39287.96343.13

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