St Louis, Memphis & Southeastern / Jonesboro, Lake City & Eastern / St Louis-San Francisco / Fort Worth & Rio Grande 2-6-0 "Mogul" Type Locomotives

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Class Details by Steve Llanso

Class 300 (Locobase 4148)

http://www.frisco.org/fmig/newsletters/fmig21/fmig21h.htm is the source for this data. These small Moguls were scrapped in 1915.

Class 304 (Locobase 4143)

http://www.frisco.org/fmig/newsletters/fmig21/fmig21h.htm is the source for this data. Baldwin's works numbers for this set of straight-boilered Moguls included 8230-31 and 8233 in 1886 and 8777-78, 8782-84, 8786-87, 8790, 8794-95 in 1887.

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

Class 317 (Locobase 4144)

http://www.frisco.org/fmig/newsletters/fmig21/fmig21h.htm is the source for this data. This batch of 20 followed the 304s (Locobase 4143) , but had a slightly larger firebox created by the adoption of a wagon-top boiler. Works numbers ran nearly consecutively beginning at 9319, 9321-22, 9325-31, followed by 9359, 9364-65, 9368, 9370-74, and ending with 9377.

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 collection. 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 337 (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 collection. 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 4 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.

Class 34 (Locobase 14380)

Data from SL&SF All Time Loco Diagrams HS Pub supplied in May 2005 by Allen Stanley from his extensive collection. 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 354 (Locobase 4145)

http://www.frisco.org/fmig/newsletters/fmig21/fmig21h.htm is the source for this data. 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 359 (Locobase 4146)

http://www.frisco.org/fmig/newsletters/fmig21/fmig21h.htm 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 collection. Works numbers were 15532-15533 in October 1897.

This was a repeat order for the F W & 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)

http://www.frisco.org/fmig/newsletters/fmig21/fmig21h.htm 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.


Specifications by Steve Llanso
Class30030431732 / 7233734354359363
Locobase ID4148 4143 4144 6778 8589 14380 4145 4146 4147
RailroadSt Louis-San Francisco (Frisco/(SLSF)St Louis-San Francisco (Frisco/(SLSF)St Louis-San Francisco (Frisco/(SLSF)Jonesboro, Lake City & Eastern (SLSF)St Louis-San Francisco (Frisco/(SLSF)Jonesboro, Lake City & Eastern (SLSF)Fort Worth & Rio Grande (SLSF)Fort Worth & Rio Grande (SLSF)St Louis, Memphis & Southeastern (SLSF)
Whyte2-6-02-6-02-6-02-6-02-6-02-6-02-6-02-6-02-6-0
Road Numbers300-303304-316217-236 / 317-33632-33 / 72-73834-850 / 237-253 / 337-35334-35/74-75354-358359-362363-364
GaugeStdStdStdStdStdStdStdStdStd
BuilderRogersBurnham, Parry, Williams & CoBurnham, Parry, Williams & CoBaldwinBurnham, Williams & CoBaldwinRhode IslandBurnham, Williams & CoBrooks
Year188618861888191318921916189118971893
Valve GearStephensonStephensonStephensonWalschaertStephensonWalschaertStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase15.50'15.17'15.17'11.50'15.17'11.50'16.25'16.25'13.93'
Engine Wheelbase23.20'22.92'22.92'19.33'23.17'19.33'23.83'23.75'21.57'
Ratio of driving wheelbase to overall engine wheebase 0.67 0.66 0.66 0.59 0.65 0.59 0.68 0.68 0.65
Overall Wheelbase (engine & tender)45.79'45.46'45.62'46.04'45.90'46.25'46.17'47.37'47.57'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers83375 lbs76800 lbs81600 lbs93000 lbs81900 lbs96000 lbs96000 lbs99900 lbs102000 lbs
Engine Weight100975 lbs92700 lbs97000 lbs108800 lbs106300 lbs111500 lbs112000 lbs117900 lbs118000 lbs
Tender Light Weight73725 lbs84600 lbs84600 lbs80000 lbs84600 lbs80000 lbs84000 lbs91000 lbs87000 lbs
Total Engine and Tender Weight174700 lbs177300 lbs181600 lbs188800 lbs190900 lbs191500 lbs196000 lbs208900 lbs205000 lbs
Tender Water Capacity4000 gals3900 gals3900 gals4000 gals4000 gals4000 gals4000 gals4000 gals4000 gals
Tender Fuel Capacity (oil/coal)8 tons8 tons8 tons6 tons8 tons6 tons10 tons10 tons10 tons
Minimum weight of rail (calculated) on which locomotive could run46 lb/yard43 lb/yard45 lb/yard52 lb/yard46 lb/yard53 lb/yard53 lb/yard56 lb/yard57 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter56.50"56.50"56.50"50"56.50"50"55"55"55"
Boiler Pressure150 psi145 psi145 psi180 psi145 psi180 psi145 psi160 psi160 psi
Cylinders (dia x stroke)19" x 24"19" x 24"19" x 24"18" x 24"19" x 24"18" x 24"19" x 24"18" x 24"19" x 24"
Tractive Effort19552 lbs18900 lbs18900 lbs23795 lbs18900 lbs23795 lbs19415 lbs19228 lbs21424 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.26 4.06 4.32 3.91 4.33 4.03 4.94 5.20 4.76
Heating Ability
Firebox Area122 sq. ft122 sq. ft132 sq. ft118.90 sq. ft137 sq. ft128 sq. ft120 sq. ft120 sq. ft180 sq. ft
Grate Area17 sq. ft17.25 sq. ft17.25 sq. ft20.50 sq. ft17.10 sq. ft20.80 sq. ft17 sq. ft17 sq. ft21.70 sq. ft
Evaporative Heating Surface1377 sq. ft1454 sq. ft1464 sq. ft1263 sq. ft1582 sq. ft1015 sq. ft1566 sq. ft1703 sq. ft1485 sq. ft
Superheating Surface218 sq. ft
Combined Heating Surface1377 sq. ft1454 sq. ft1464 sq. ft1263 sq. ft1582 sq. ft1233 sq. ft1566 sq. ft1703 sq. ft1485 sq. ft
Evaporative Heating Surface/Cylinder Volume174.84184.62185.89178.68200.87143.59198.84240.93188.55
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation255025012501369024803744246527203472
Same as above plus superheater percentage255025012501369024804418246527203472
Same as above but substitute firebox area for grate area183001769019140214021986527187174001920028800
Power L1356435783682394239307676365547794441
Power MT282.72308.13298.43280.34317.37528.83251.81316.39287.96

Reference

Credits

Introduction and roster provided by Richard Duley. Class details and specifications provided by Steve Llanso of Sweat House Media.