San Francisco & San Joaquin Valley / Oklahoma Central / Gulf, Colorado & Santa Fe / Santa Fe / Kansas City, Mexico, & Orient / Denver, Enid & Gulf 2-6-0 "Mogul" Type Locomotives

Class Details by Steve Llanso

Class 0189 (Locobase 8222)

Data from AT&SF 7 -1901 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Information about how many, when, and by whom this class was supplied from http://atsf.railfan.net/atsfstea.html (also visited 6 Feb 2006), the Santa Fe All-Time Steam Roster maintained by Evan Werkema .

NB: Tube length is an estimate based on the calculation of tube surface area by subtracting reported firebox heating surface from reported total evaporative heating surface

Class 146 (2) (Locobase 8908)

Data from AT&SF 9 - 1920 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Information about how many, when, and by whom this class was supplied from http://atsf.railfan.net/atsfstea.html (also visited 6 Feb 2006), the Santa Fe All-Time Steam Roster maintained by Evan Werkema .

Although fitted with only a modestly scaled boiler for a late-1880s Mogul and possessing a light axle loading, this engine did have a relatively large grate.

According to Meade's Manual, stored on the web as http://www.atsfry.com/easternarchive/meades/mead164b.htm, last accessed 18 November 2007.

"THE DENVER, ENID & GULF RAILROAD CO.

GUTHRIE TO KIOWA

117.10 Miles

Incorporated in Oklahoma as the Denver, Enid and Gulf Railroad Company, March 31st, 1902, by the five Frantz Brothers.

Sold May 22nd, 1907 to the Eastern Oklahoma Railway Company. Sold to the Atchison, Topeka and Santa Fe Railway Company, June 20th 1907."

Class 15 / 147 (2) (Locobase 8979)

Data from AT&SF 9 - 1920 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Information about how many, when, and by whom this class was supplied from http://atsf.railfan.net/atsfstea.html (also visited 6 Feb 2006), the Santa Fe All-Time Steam Roster maintained by Evan Werkema . Works number was 27038 in December 1905.

This Mogul was delivered to the DE&G with Alfree-Hubbell valves, a variation of the basic slide valve that is explained in greater detail in Locobase 5344. Its chief value was said to be that the exhaust opening and closure both happened later in the stroke and the exhaust port's size allowed faster clearance of the cylinder.

The DE&G was sold to the Santa Fe in 1907 and 15 joined the 142 class as 147. Locobase does not know if the A-H valve had already been removed. 147 was scrapped in 1927.

Class 2445 (Locobase 804)

2 engines in this class, ex-St Louis-San Francisco (Frisco); see Locobase 4145.

Deep firebox meant that the third driving axle was spaced two feet farther from the second axle than the second was from the first. Note the inside valve motion on this relatively small locomotive. Engine 2446 used 170-lb psi, registered 22,750 lb tractive effort.

(Note: The Santa Fe's official name was the Atchison, Topeka, & Santa Fe or AT&SF.)

NB: Tube length is an estimate based on the calculation of tube surface area by subtracting reported firebox heating surface from reported total evaporative heating surface

Class 2526 (Locobase 805)

9 engines in this class.

Compared to the earlier Mogul #2446 of the AT&SF, this class, built at Alco's Cooke works, had more even driver spacing, much greater power. The BDF and short tube length also shows that this boiler was worked very hard.

One engine -- 2531 -- had 57-in drivers and developed 37,700 lb of tractive effort, reached an almost incredible 1,173 BDF and GDF of 80,490, and attained a 4.81 factor of adhesion.

According to the AT&SF drawing of the class, these were originally numbered by Orient in the 130-155 range.

The Railroad Gazette of 4 January 1907 announced that the KCM & O had ordered 20 Moguls with Allfree-Hubbell valves (see Locobase 7820 for a description of this rarely used design) for delivery in July and September 1907. Locobase suspects that the order was modified to the set of 10 descibed herein in part because of the sharp drop in the US economy prompted by the Panic of 1907, but also because the A-H valve design had proven not to be worth the trouble of installing and maintaining.

Class 501 / 865 (Locobase 8398)

Data from AT&SF 9 -1920 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Information about how many, when, and by whom this class was supplied from http://atsf.railfan.net/atsfstea.html (visited 6 Feb 2006), the Santa Fe All-Time Steam Roster maintained by Evan Werkema. Works numbers were 29347 and 29361 in October 1906 and 29893-29894, 29946 in January 1907.

Locobase 8397 shows the 4-4-0s that helped the OCR open its service in 1907. These Moguls were delivered at around the same time and were considerably bigger and more powerful. Once the OCR was bought up by the Santa Fe in 1917, the new owner took all 5 into its service where they ran for another 10 years. 865 was the first to go, being scrapped in April 1927; the last was 866, which was dismantled in November 1929.

Class 566 (Locobase 8223)

Data from AT&SF 7 -1901 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Information about how many, when, and by whom this class was supplied from http://atsf.railfan.net/atsfstea.html (also visited 6 Feb 2006), the Santa Fe All-Time Steam Roster maintained by Evan Werkema . Works numbers 18741 in March 1901; 19013-19016, 19059-19062 in May; 19120 in June; 19412-19429, 19462-19468 in August.

This class of 4-cylinder Vauclain compounds shared the boiler and grate design of the 566 simple-expansion engines described in Locobase 4889. The class continued to operate as compounds for a bit longer tham most railroads, the AT&SF only simpling them in 1918-1920. Many were later converted to 0-6-0 and 0-8-0 switchers.

Class 591 (Locobase 4889)

Moguls built by Baldwin for the Atchison, Topeka & Santa Fe and described in a 1906 Baldwin catalogue which is reproduced on http://www.railroadextra.com/blatsf.hmtl . Works numbers were 18742 in March 1901; 19120-19122, 19131-19135 in June; 19179, 19185-19187, 19212-19213 in July. The last two are shown by Connelly to have had 64" drivers.

This class represented the minority of this freight Mogul design that was completed as simple-expansion locomotives; the larger portion is shown in Locobase 8223. Relatively generous grate dimensions meant a low GDF. Many were later converted to 0-6-0 and 0-8-0 switchers.

Class 68 / 0194 (Locobase 8900)

Data from AT&SF 9 -1920 locomotive diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Information about how many, when, and by whom this class was supplied from http://atsf.railfan.net/atsfstea.html (visited 6 Feb 2006), the Santa Fe All-Time Steam Roster maintained by Evan Werkema. Works numbers were 8190-8191, 8194-8195 in November 1886; 8441, 8445 in March 1887; 8493, 8495, 8498, 8500 in April.

A relatively numerous class of Moguls, this class was produced in ones and twos in 1886-1888. The Connelly records for this number series show three different driver diameters (48, 54, 57).

Several were sold to short lines near the ends of their careers. 200 went to the Angelina & Neches Rivers in October 1906 as their 104. 202 was sold to the Sabine River in June 1916. (Locobase can't identify the T & NW, to which the 196 was sold in August 1910 or the D & NM, which bought the 198 in September 1902.)

Class 79 / 0194 (Locobase 11681)

Data from Baldwin Locomotive Works Specification for Engines, 1888, as digitized by the DeGolyer Library of Southern Methodist University Vol 14, 204. Works numbers were 9566-9568, 9570, and 9577 in October 1888.

Of the locomotives later grouped under the Santa Fe's catch-all class of Moguls (see also Locobase 8900), these had a few more tubes and consequently more heating surface area.

Class Claus Spreckels (Locobase 12154)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 19, p.263. Works numbers were 14324-14325, 14350-14351 in June 1895.


Specifications by Steve Llanso
Class0189146 (2)15 / 147 (2)24452526501 / 86556659168 / 019479 / 0194Claus Spreckels
Locobase ID8222 8908 8979 804 805 8398 8223 4889 8900 11681 12154
RailroadSanta Fe (ATSF)Denver, Enid & Gulf (ATSF)Denver, Enid & Gulf (ATSF)Santa Fe (ATSF)Kansas City, Mexico, & Orient (ATSF)Oklahoma Central (ATSF)Santa Fe (ATSF)Santa Fe (ATSF)Gulf, Colorado & Santa Fe (ATSF)Gulf, Colorado & Santa Fe (ATSF)San Francisco & San Joaquin Valley (ATSF)
CountryUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSA
Whyte2-6-02-6-02-6-02-6-02-6-02-6-02-6-02-6-02-6-02-6-02-6-0
Road Numbers0189-019214615 / 1472445-24462526-2534501-505 / 865-869566-590, 606-615591-60568-78 / 0194-020379-83 / 203-2071-3
GaugeStdStdStdStdStdStdStdStdStdStdStd
BuilderHinkleyPittsburghBurnham, Williams & CoRhode IslandAlco-CookeBurnham, Williams & CoBurnham, Williams & CoBurnham, Williams & CoBurnham, Parry, Williams & CoBurnham, Parry, Williams & CoBurnham, Williams & Co
Year18811889190518911907190619011901188618881895
Valve GearStephensonStephensonStephensonStephensonWalschaertStephensonStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase15'13.17'15'16.25'14.17'15.17'16'16'15'11.50'12.75'
Engine Wheelbase22.67'20.58'23.17'23.33'23.33'23.25'31.08'24.67'22.69'18'20'
Ratio of driving wheelbase to overall engine wheebase 0.66 0.64 0.65 0.70 0.61 0.65 0.51 0.65 0.66 0.64 0.64
Overall Wheelbase (engine & tender)49.83'46.08'58.85'52.87'51.33'51.33'46'
Axle Loading (Maximum Weight per Axle)48670 lbs46370 lbs
Weight on Drivers77000 lbs81720 lbs116000 lbs98650 lbs146000 lbs132000 lbs135000 lbs132000 lbs74000 lbs77000 lbs124000 lbs
Engine Weight90000 lbs94100 lbs134000 lbs118110 lbs168000 lbs154680 lbs164000 lbs157100 lbs90000 lbs90000 lbs135000 lbs
Tender Light Weight80600 lbs41840 lbs95880 lbs100000 lbs100000 lbs65800 lbs
Total Engine and Tender Weight170600 lbs135940 lbs250560 lbs264000 lbs257100 lbs155800 lbs
Tender Water Capacity4100 gals3200 gals5000 gals8000 gals5000 gals5000 gals5000 gals3600 gals3000 gals4000 gals
Tender Fuel Capacity (oil/coal)6.5 tons tons tons2127 gals3430 gals12 tons tons tons1847 gals gals gals
Minimum weight of rail (calculated) on which locomotive could run43 lb/yard45 lb/yard64 lb/yard55 lb/yard81 lb/yard73 lb/yard75 lb/yard73 lb/yard41 lb/yard43 lb/yard69 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter58"56"57"55"63"58"62"62"57"54"47"
Boiler Pressure140 psi150 psi180 psi155 psi200 psi180 psi200 psi200 psi145 psi130 psi200 psi
High Pressure Cylinders (dia x stroke)17" x 24" (2)19" x 24" (2)20" x 26" (2)19" x 24" (2)21.25" x 28" (2)20" x 28" (2)15.5" x 28" (2)20" x 28" (2)18" x 24" (2)18" x 24" (2)20" x 24" (2)
Low Pressure Cylinders (dia x stroke)26" x 28" (2)
Tractive Effort14231 lbs19726 lbs27916 lbs20754 lbs34118 lbs29545 lbs27217 lbs30710 lbs16814 lbs15912 lbs34723 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.41 4.14 4.16 4.75 4.28 4.47 4.96 4.30 4.40 4.84 3.57
Heating Ability
Firebox Area119 sq. ft101 sq. ft129 sq. ft145 sq. ft188 sq. ft178 sq. ft183 sq. ft183 sq. ft113.20 sq. ft122.86 sq. ft142.71 sq. ft
Grate Area16.10 sq. ft24.50 sq. ft29.80 sq. ft19.20 sq. ft30 sq. ft30.20 sq. ft48.50 sq. ft48.50 sq. ft17 sq. ft17 sq. ft28.10 sq. ft
Evaporative Heating Surface1080 sq. ft1241 sq. ft1739 sq. ft1490 sq. ft2057 sq. ft2126 sq. ft2626 sq. ft2626 sq. ft1325 sq. ft1375 sq. ft1793 sq. ft
Superheating Surface
Combined Heating Surface1080 sq. ft1241 sq. ft1739 sq. ft1490 sq. ft2057 sq. ft2126 sq. ft2626 sq. ft2626 sq. ft1325 sq. ft1375 sq. ft1793 sq. ft
Evaporative Heating Surface/Cylinder Volume171.29157.57183.95189.19178.97208.82429.43257.93187.45194.52205.46
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation22543675536429766000543697009700246522105620
Same as above plus superheater percentage22543675536429766000543697009700246522105620
Same as above but substitute firebox area for grate area1666015150232202247537600320403660036600164141597228542
Power L135953104431239965476515442537188368532934500
Power MT308.79251.22245.85267.91248.07258.24208.36360.15329.35282.85240.02

Reference

Credits

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