Midland Valley / Missouri, Oklahoma & Gulf 2-8-0 "Consolidation" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 19 (Locobase 12860)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 48, p. 221 See also http://condrenrails.com/FSVB/Midland-Valley.htm, a full photo view of the MV locomotives as well as those of the Kansas, Oklahoma & Gulf and the Oklahoma City-Ada-Atolka Railway. A summary of the Muskogee Company empire appears in the Muskogee Company records, DeGolyer Library, Southern Methodist University, http://www.lib.utexas.edu/taro/smu/00131/smu-00131.html, last accessed 26 April 2015. (Thanks to Chris Hohl for his 21 November 2015 email pointing out the tender's capacity and loaded weights.)

Works numbers were 40672-40673 in September 1913.

The MVRR retained the same power dimensions in this pair of Consolidations that it used in all of the earlier Baldwins (Locobase 11530) and retained the same grate area. But the boiler and firebox grew considerably and steam admission came through Walschaert's outside radial valve gear.


Class 205 (Locobase 6782)

Data from 1918 KO & G Locomotive Diagrams book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also DeGolyer, Vol 43, pp. 106+. A summary of the Muskogee Company empire appears in the Muskogee Company records, DeGolyer Library, Southern Methodist University, http://www.lib.utexas.edu/taro/smu/00131/smu-00131.html, last accessed 26 April 2015.

Works #33960-33961 in October 1909; 35254-35255, 35294-35295 in September 1910; 36587-36590 in May 1911.

It may split a hair or two to distinguish this group of Consolidations from the 1912 engines described in Locobase 9474, but there were differences in tube count from one to the next.


Class 221 (Locobase 9474)

Data from 1918 KO & G Locomotive Diagrams book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. A summary of the Muskogee Company empire appears in the Muskogee Company records, DeGolyer Library, Southern Methodist University, http://www.lib.utexas.edu/taro/smu/00131/smu-00131.html, last accessed 26 April 2015. See also DeGolyer, Volume 43, pp. 110+. Works #37412-37413 in January 1912 and 37582-37585 in May; and 37786-37789 in June.

This class had slight differences in tube count and firebox heating surface from the 1909 design shown in Locobase 6782. Note that neither group was superheated - nor would they be.

In 1929, the 235 was traded to the Osage Railway for that road's 2-10-0 #10.


Class 4 (Locobase 12994)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 29, p. 153. See also "Locomotive Building", Railroad Gazette, Volume XL, No 26 (29 June 1906), p. 187. Works number was 29014 in September 1906.

Locobase 11530 shows the base class of Consolidations from which this locomotive differs in having a wide Wootten firebox. The RG's data doesn't match up with the Baldwin specs in most respects, but does confirm that the engine had the big grate. As specified, the 4 had an 8 ft wide grate (2,438 mm).

The 4's photograph appears in Mike Condren's Muskogee Company website at http://condrenrails.com/FSVB/Midland%20Valley/4-class-2-8-0.htm, last accessed 26 April 2015. Taken at Baldwin's works, the picture shows the usual cab over the middle drivers, but showed its steam dome perched incongruously on the firebox behind the cab and ahead of the safety valve stand. Only the bell is located forward. .


Class 6 (Locobase 11530)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 26, p. 154, Volume 28, p. 162; vol 31, p 5. See also http://condrenrails.com/FSVB/Midland-Valley.htm, a full photo view of the MV locomotives as well as those of the Kansas, Oklahoma & Gulf and the Oklahoma City-Ada-Atoka Railway, the other components of the Muskogee Company road system. A summary of the Muskogee Company empire appears in the Muskogee Company records, DeGolyer Library, Southern Methodist University, http://www.lib.utexas.edu/taro/smu/00131/smu-00131.html, last accessed 26 April 2015.

Works numbers were 23223 in December 1903

1904

January 23510; March 23852; August 24523; September 24650; October 24762-24763 in

1905

September 26444

1906

September 29005, 29014; November 29539, 29560-29561

1907

August 31095-31096, 31605, 31610, 31636-316370; September 31669; November 32132-32133, 32195.

The Midland Valley was a line that operated northwest-southeast between Wichita, Kans and Fort Smith, Ark, serving Muskogee and Tulsa, Okla along the way.

After several years with the MV, 9-10 were sold to Cherokee Consolidated Company. In the 1907 specs, noted that the 19 was sold in 1909 to the Denver, Laramie & Northwestern and 20-21 to Hodges, Downey & Company for resale.

20-21 soon went to the Crystal City & Uvalde in Texas as their #22 and #21,respectively ; the CC&U soon evolved into the Link Route -- the San Antonio, Uvalde & Gulf . See Locobase 7819 for the superheated makeover the Sausage Line soon applied to both of these engines. Ultimately the two wound up on the Missouri Pacific in their class C-50 as road number 1004 1005.


Class C-50 - 29.4 (Locobase 7819)

Data from MP 8 - 1936 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Soon after they arrived on Texas's MV, this pair was sold to the Hodges Downey Corporation, who sold them to the Crystal City & Uvalde, which was reorganized in 1912 as the San Antonio, Uvalde & Gulf.

The "Link Line" (aka the Sausage) began as the Crystal Lake & Uvalde connecting those two towns southwest of San Antonio. The system grew quickly. The North-South line extended a few miles further south to Carrizo Springs even before the line was begun. Once it was complete, land speculation by "colonizers" encouraged eastward expansion from Crystal Lake on a road that curved north to Pleasanton. By this time, the SAU & G intended to link Pleasanton and Corpus Christi to its southeast; it was logical to connect Pleasanton to San Antonio. The final Sausage layout resembled an upside-down Adirondack chair (or a laid-back, lower-case h). (Use your imagination or look up the map at http://www.txtransportationmuseum.org/SAUG.htm.)

Although the original line and its link to Pleasanton soon proved unprofitable, the San Antonio-Corpus Christi link proved valuable to the Missouri Pacific (through its purchase by the New Orleans, Texas & Mexico in 1925).

The MP renumbered the pair once again.

Neither of the available locomotive diagram books includes the actual superheater area; Locobase estimates that it measured approximately 350 sq ft.

Specifications by Steve Llanso of Sweat House Media
Class1920522146
Locobase ID12860 6782 9474 12994 11530
RailroadMidland Valley (KO&G)Missouri, Oklahoma & Gulf (KO&G)Missouri, Oklahoma & Gulf (KO&G)Midland Valley (KO&G)Midland Valley (KO&G)
CountryUSAUSAUSAUSAUSA
Whyte2-8-02-8-02-8-02-8-02-8-0
Number in Class2910122
Road Numbers19-20205-219 (odd only)221-239 (odd only)46-12, 5, 13-18, 22-26, 19-21
GaugeStdStdStdStdStd
Number Built2910122
BuilderBaldwinBaldwinBaldwinBurnham, Williams & CoBurnham, Williams & Co
Year19131910191219061903
Valve GearWalschaertStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase14'14.33'14.33'13.58'14'
Engine Wheelbase22.08'22.42'22.42'21.58'22.08'
Ratio of driving wheelbase to overall engine wheebase 0.63 0.64 0.64 0.63 0.63
Overall Wheelbase (engine & tender)53.56'55.21'53.92'57.25'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers133000 lbs150000 lbs147850 lbs137000 lbs120000 lbs
Engine Weight150000 lbs165000 lbs163200 lbs154000 lbs135000 lbs
Tender Light Weight115000 lbs125000 lbs126800 lbs100000 lbs100000 lbs
Total Engine and Tender Weight265000 lbs290000 lbs290000 lbs254000 lbs235000 lbs
Tender Water Capacity6000 gals6500 gals6500 gals5000 gals5000 gals
Tender Fuel Capacity (oil/coal)10 tons12 tons12 tons tons tons
Minimum weight of rail (calculated)55 lb/yard63 lb/yard62 lb/yard57 lb/yard50 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"52"52"50"50"
Boiler Pressure180 psi200 psi200 psi200 psi180 psi
Cylinders (dia x stroke)20" x 24"20" x 26"20" x 26"20" x 24"20" x 24"
Tractive Effort29376 lbs34000 lbs34000 lbs32640 lbs29376 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.53 4.41 4.35 4.20 4.08
Heating Ability
Firebox Area162 sq. ft186 sq. ft175 sq. ft181 sq. ft118 sq. ft
Grate Area30 sq. ft32 sq. ft32.80 sq. ft75.90 sq. ft30 sq. ft
Evaporative Heating Surface2204 sq. ft2415 sq. ft2416 sq. ft2051 sq. ft1995 sq. ft
Superheating Surface
Combined Heating Surface2204 sq. ft2415 sq. ft2416 sq. ft2051 sq. ft1995 sq. ft
Evaporative Heating Surface/Cylinder Volume252.56255.45255.56235.03228.61
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation540064006560151805400
Same as above plus superheater percentage540064006560151805400
Same as above but substitute firebox area for grate area2916037200350003620021240
Power L151816133603456464443
Power MT343.52360.56359.90363.42326.50

Specifications by Steve Llanso of Sweat House Media
ClassC-50 - 29.4
Locobase ID7819
RailroadMidland Valley (KO&G)
CountryUSA
Whyte2-8-0
Number in Class2
Road Numbers20-21 / 22, 21 / 1004-1005
GaugeStd
Number Built2
BuilderSAUG
Year1907
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase14'
Engine Wheelbase22'
Ratio of driving wheelbase to overall engine wheebase 0.64
Overall Wheelbase (engine & tender)51.75'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers128660 lbs
Engine Weight146880 lbs
Tender Light Weight130545 lbs
Total Engine and Tender Weight277425 lbs
Tender Water Capacity6000 gals
Tender Fuel Capacity (oil/coal)2125 gals
Minimum weight of rail (calculated)54 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"
Boiler Pressure180 psi
Cylinders (dia x stroke)20" x 24"
Tractive Effort29376 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.38
Heating Ability
Firebox Area162 sq. ft
Grate Area31 sq. ft
Evaporative Heating Surface1791 sq. ft
Superheating Surface350 sq. ft
Combined Heating Surface2141 sq. ft
Evaporative Heating Surface/Cylinder Volume205.23
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5580
Same as above plus superheater percentage6473
Same as above but substitute firebox area for grate area33826
Power L19885
Power MT677.53

Reference


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