Houston, Central Arkansas & Northern / Midland Pennsylvania / Missouri Pacific / Kansas City, Wyandotte & Northwestern / Wabash, Chester & Western / Little Rock, Mississippi River & Texas / Arkansas & Louisiana / Arkansas Midland / Saint Louis, Brownsville & Mexico / International & Great Northern / Denver, Memphis & Atlantic / Saint Louis, Iron Mountain & Southern 4-4-0 "American" Type Locomotives

Class Details by Steve Llanso

Class 1 (Locobase 10057)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

According to the New York Locomotive Works records compiled by J F Webber, this locomotive was delivered either to the KC, W & NW as their #4 (works #287) or the A & L as #2 (works #197). Locobase chose the latter origin for the following reasons:

1) The 1924 MP book showed an identical engine, also bought in 1910, for which the original builder was not supplied, and

2) Webber lists the A & L #1 as immediately preceding the one we do know, but does not give a wheel arrangement.

The A & L began life in 1876-1877 as the narrow-gauge Washington & Hope Railway, which connected with the St Louis, Iron Mountain & Southern near St Louis. Reorganized and now tasked with completing a line to Monroe, La, the A & L was converted to standard gauge in 1882. It later was ruled to be a branch line of the St L, IM & S.

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 1 (Locobase 10063)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works #1101-1103 (March 1886), 1136, 1138-1139 (August 1886).

Another of the grandly named railroads that blossomed across the Midwest in the late 1800s, the D M & A never even entered service as an independent railway. The Missouri Pacific bought the line in 1887. #4 was named Chatauqua, # Crowell, and #6 Sumner.

Class 1 (Locobase 11619)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 15, p. 79. Works number was 9943 in April 1889.

When the Reynolds & Henry Construction Company applied to Baldwin to buy a new locomotive for the soon-to-open Ouachita Valley Route, the Philadelphia builder pulled the design just recently used for the Rio Grande & Eagle Pass (Locobase 11592) and copied it. to the last quarter inch of tube length.

The OVR didn't remain independent for long before being sold to the St Louis, Iron Mountain & Southern (a principal component of the Missouri Pacific) on 13 December 1893. Its route opened the way to Houston.

Class 1 (Locobase 12711)

Data from DeGolyer, Volume 27, p. 28. Works numbers were 24093, 24098, 24118 in April 1904.

These were the first locomotives bought for the StLB & M, an eastern Texas railroad that opened its first section, 142 miles between Robstown and Brownsville on 4 July 1904. Extending north toward Houston, the StLB & M owned and operated 502 miles of main lin by 1912.

926 was scrapped after a relatively short career in April 1919 before the other two were superheated; see Locobase 7764.

Class 11 (Locobase 12737)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 27, p. 167 and 41, p. 132. Works numbers were 37393 in December 1911 and 39484 in March 1913.

See more about the WC & W in Locobase 12736. This Illinois railroad apparently needed some passenger power and bought these two Eight-wheelers from Baldwin. After the WC & W's demise in 1927, its successor Chester & Mount Vernon took over both.

Class 12 (Locobase 6885)

Data from IGN 2 - 1923 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. See also the Handbook of Texas online at http://www.tsha.utexas.edu/handbook/online/articles/II/esp4.html (accessed 2 September 2005) for information on the I & GN.

This was among the first locomotives for this Texas railroad, which first saw life in 1873 as the consolidation of the International Railroad Company and the Houston & Great Northern. Through financial panics, a term of ownership by the noted (and notorious) speculator and baron Jay Gould, bankruptcies and the like, the I & GN extended its reach from its original core of the Houston-Palestine and Houston-East Columbia lines.

By 1911, the I & GN had grown to 1,106 miles and served most of the Lone Star State. In 1923, the Missouri Pacific sought to block the Missouri-Kansas-Texas by arranging for the New Orleans, Texas & Mexico to buy the I & GN. A year later, the MP bought the NO, T & M and the merger was completed.

Class 20 (Locobase 10058)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works number 941.

Small Eight-wheelers that were among the earliest St L, IM & S engines. G M Best's compilation of Grant locomotives gives us the original builder's number for 20, but cannot help us with any others because of unavoidable gaps in information. See Locobase 10059 for a passenger-engine variant.

Class 2208 (Locobase 6728)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works # 826-827.

Fortunately for future railroad historians and ferro-equinologists (and database compilers), the 1924 edition of the Missouri Pacific diagrams included several of Eight-wheelers from well before the turn of the century.

Among the earliest of the MoPac predecessors was the St L, IM & S and these were among its first locomotives. Later on, the MP retained one of them long enough to renumber it twice.

Class 2502 (Locobase 6729)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Fortunately for future railroad historians and ferro-equinologists (and database compilers), the 1924 edition of the Missouri Pacific diagrams included several of Eight-wheelers from well before the turn of the century.

Of the two pages in the book describing this design, the first example was marked "Scrapped 10/24" on the original document. The locomotives came from the heyday of the 4-4-0 and still featured the one steam dome over the firebox and one over the center of the boiler as well as a very straight and tall stack. Rogers delivered the locomotive that would be 2502 in 1880, the other 4 the very next year.

Class 28 (Locobase 10059)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works numbers

In the same year that Grant delivered the mixed-traffic Eight-wheeler shown in 10058, the Paterson, NJ builder supplied similar locomotives with slightly smaller grates and taller drivers as passenger engines.

Class 4 (Locobase 10066)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works number was 267.

Although apparently similar to the Baldwins purchased at the same time (Locobase 10064), this single Rome, NY product had more tubes.

Class 5 (Locobase 10068)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works #619-620 (March 1880), 633-636 (October 1880), 639-642 (February 1881).

These high-boilered Masons had several numbers and at least one name each as follows:

LR, MR & T StL, IM & S MP

5 ZEB WARD 620 8815

6 WILLIAM MASON 621 8816

7 PINE BLUFF 622 8817

8 LITTLE ROCK 623 8818

9 VARNER 624 8819

10 ARKANSAS CITY 625

11 COLLINS 626

12 MONTICELLO 627 8820

625 may have been scrapped before the class came under MP control and 626 went first to the SI & E as its 542 and then to the Rankin Lumber Company in Mars Bluff, South Carolina.

Class 6 (Locobase 10070)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. See also Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University, Volume 21, p. 276. Works 14524 later took road number 8848.

Locobase isn't sure these are the engines operated first by the Arkansas Midland. For one thing, the dates shown in Connelly's list are all over the map as are the works numbers 12842 in July 1892, 14524 in November 1895, 16268 in October 1898, 17199 in October 1899.

But 3 of them were later credited to the International Great Northern and renumbered twice before receiving MP road numbers 8826 (works 12832), 8827 (works 16268), and 8828 (works 17199).

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 6, 2 (Locobase 10064)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works numbers were 8909-8910, 8912, 8915-8916 (7, 6, 8-10) in November 1887 and 9455 (2) and 9459 (3) in September 1888. The lone New York Locomotive was works number 267 and bore road number 4. It was renumbered 8745 by the Missouri Pacific.

See 10041 for a brief description of this KC-based railway. In this entry you find a class of late-80s Eight-wheelers of typical size and power. It's not clear why the numbering should have disagreed with the year of production. When the KC & NW was absorbed by the Missouri Pacific in 1894, this class went along.

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 698 / E-62 (Locobase 6733)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Compared to the others in the 1924 book, this 4-4-0 class is bigger, but not remarkably more powerful. The first 10 were built by Baldwin in August 1895 (works numbers 14373-14382) with MoPac adding two from its own shops in 1897-1898.

The class was delivered with 62" drivers (tractive effort of 19,190 lb, factor of adhesion 4.17), but sometime later all received 69" wheels that better suited them to light passenger service.

Class 72 / 407 / 8803 (Locobase 10067)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works numbers 1238-1244.

Slightly jumbled septet from Grant in this year. Some had 138 tubes and measured 11 1/2" over the tube sheets while others had 140 tubes that were 3 inches shorter. What Locobase finds most interesting is the small cylinder volume and light weight.

When the St L, IM & S was taken in by the Missouri Pacific, the 5 survivors (ex-72-75 and 79) were renumbered 8803-8807.

Class 8509 (Locobase 6730)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Fortunately for future railroad historians and ferro-equinologists (and database compilers), the 1924 edition of the Missouri Pacific diagrams included several of Eight-wheelers from well before the turn of the century.

Using the same power dimensions as the earlier Rogers engines (see Locobase 6729), the design shown here featured a few more boiler tubes and a larger grate. 3 of the 4 delivered are shown on a page that has an indistinct builder's credit. It may have been Rhode Island as well.

Class 8552 (Locobase 6731)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Fortunately for future railroad historians and ferro-equinologists (and database compilers), the 1924 edition of the Missouri Pacific diagrams included several of Eight-wheelers from well before the turn of the century.

The lower drivers mark this as a mostly freight engine of somewhat smaller dimensions than the other 4-4-0s in the book from the same era.

Class 8566 (Locobase 6732)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Fortunately for future railroad historians and ferro-equinologists (and database compilers), the 1924 edition of the Missouri Pacific diagrams included several of Eight-wheelers from well before the turn of the century.

This is a repeat of the 1882 Rhode Island engine (see Locobase 6730) with the boiler pressed to a higher level.

Class 8631 (Locobase 10054)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Locobase doesn't know if this was a 1-only

Class 8653 (Locobase 10055)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

This may have been an early experiment in oil-firing. The engine was a typical early '90s Eight-wheeler with passenger-sized drivers, but in place of a coal grate, the MoPac had an oil burning system fitted. So, quite properly, the specifications have the words "oil burner" in place of an area measurement.

Class 8654 (Locobase 10056)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

NB: Reported total heating surface is 127 sq ft less than the calculated tube heating surface.

Class 8710 (Locobase 10061)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

This particular boiler area-grate area combination was a common sight on the MP for some reason and various builders produced batches of slightly varying designs to the specifications for well over a decade.

Class 8714 (Locobase 10060)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Lightweight Eight-wheeler for its time, the 8714 served the MP for 33 years before being scrapped in October 1924.

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 8719 (Locobase 10062)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Locobase wonders about the specification for evaporative heating surface shown for this stray Eight-wheeler. By tube count and length and allowing for a typical firebox, the figure should be closer to 1,000 sq ft.

Class 8736 (Locobase 10065)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Similar in size to the Rogers bought in the same year (10060), this home-built had a 30-year+ operating life on the MP.

Class 8821 (Locobase 10069)

Data from MP 1924 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

8823 had 162 2" tubes that were 10 ft 8 in long over the tube sheets.

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 E - 67 - 17.8 (Locobase 7764)

Data from MP SUBS 7 - 1935 locomotive diagram book supplied in May 2005 by Allen Stanley from his extensive collection.

A trio of Eight-wheelers was delivered in 1904 as shown in Locobase 12711, but only two were superheated. The boiler modification consisted only of removing 114 small tubes in favor of installing 18 superheater flues and replacing the slide valves with 8" piston valves.

Class E 16/24 52A (Locobase 6886)

Data from IGN 2 - 1923 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Produced later than many other 4-4-0s, these home-builts were quite small and light, probably to serve branch lines. The tender's oil-fuel capacity was rated at 44 barrels (1,848 US gallons).

Class E 16/24 56A (Locobase 6785)

Data from IGN 2 - 1923 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

This IGN-built locomotive appears to have been copied from the earlier Rogers locomotives. But Locobase notes that with two fewer fire tubes, the IGN somehow gained 87 sq ft of tube area. Hmmmmm ...

Class E 16/24 58A (Locobase 6784)

Data from IGN 2 - 1923 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Locobase 6729 profiles some Rogers Eight-wheelers delivered to the IGN in the same year, but these are slightly different in their boiler dimensions. Locobase thinks they represent a different order.

Class E 18/24 68C (Locobase 6887)

Data from IGN 2 - 1923 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Tender capacity is expressed in either tons of coal or barrels of oil, in this case 44 bbl. As Eight-wheelers went in the early 1890s, this mixed-traffic class had relatively big boilers, but grates of about average size supporting quite small fireboxes. The tender's oil-fuel capacity was rated at 44 barrels (1,848 US gallons). Given the small drivers and cylinders, these were never intended for speed, but for regular local service.

Two of the class (105-106) were built along somewhat different lines and delivered in 1890; see Locobase 6888.

Class E 18/24 68C - 180 (Locobase 6888)

Data from IGN 2 - 1923 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Within the set of Eight-wheelers of average power -- Locobase 6887 -- reposed these two supercharged ponies. The boiler pressure was set 30 psi higher, the boiler was slightly smaller, but the grate a little bigger and the firebox significantly larger. It's possible that the others were set at 150 psi because the higher tractive effort of this pair must have left them slippery little devils.

The tender's oil-fuel capacity was rated at 44 barrels (1,848 US gallons).

Class E 18/24 68C - small (Locobase 6889)

Data from IGN 2 - 1923 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection.

Locobase 6887-6888 show the others that shared the same class ID, but this pair was clearly a different brand from the others. It seems to have been built to the same template as an earlier home-built (Locobase 6785), but had larger cylinders and more adhesion weight. The tender's oil-fuel capacity was rated at 44 barrels (1,848 US gallons).

Class E-63 - 15.0 (Locobase 7769)

Data from MP SUBS 7 - 1935 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive collection. Works numbers were 25056-25059, 25063, 25107 in February 1905 and 27092, 27095-27096 in December.

These small Eight-wheelers were delivered with equipment supplied to Baldwin from the following suppliers:

Tower couplers

Pyle-National electric headlights

Monitor injectors

Ajax journal bearings

Richardson valve rod packings

Baldwin standard safety valves

Leach sanding devices

Detroit sight-feed lubricators

Safety steam heat equipment

Midvale driving and truck wheel tires

6-8 and 11 were taken into the Missouri Pacific in 1925 as E-63 class 910-913; by that time, the tube count in the boilers had dropped to 174 and evaporative heating surface area measured 1,114 sq ft.. 912 was sold immediately, presumably for scrap.

9 -10 and 12-14 went to the San Benito & Rio Grande Valley in 1921. This gives Locobase the opportunity to describe this little railway, thanks to the the Cameron County Historical Commission's website http://www.cameroncountyhistoricalcommission.org/ValleyHistory.htm, accessed 30 July 2006.

Located in a triangle bounded by the Gulf of Mexico and the country of Mexico, the SB & RGV received its first push from St Louis-San Francisco Railroad-backed interests whose agent was Sam Robertson. Robertson purchased some "junk locomotives and cars" from George Dilley in Palestine in 1910. Also known as the Spider Web or "Sam Robertson's Back Door Railroad", various lines and loops were added until in 1916, the SB & RVG owned 75 miles of track and 2 locomotives. The Frisco entered receivership that year, which pulled the SB & RGV in as well. At that point, the NOT & M bought the SB & RVG and brought its locomotives with it.

The trio of StL, B & M engines in this entry went to the still independently operated railway sometime after 1921, then to the Missouri Pacific in 1925.

Class T E Herrick (Locobase 14328)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 53, pp. 250+. Works number was 41653 in August 1914.

This Millersville, Pa, short line didn't temporize on the passenger power, selecting a relatively high drivered American to pull its modest service.

A year after it was built for the MP, however, Baldwin repossessed the 1 in December 1915. Then the 1 went to Toledo Detroit, which leased the engine to the Detroit, Toledo & Ironton as their 16. The DT&I ran the 16 for about 13 years before selling it in 1928. Only two years later, the 16 became of the first American steam locomotives to leave service to go on display at the Ford Museum in Dearborn, Mich. There the engine reposed for 50 years until it was traded to the Illinois Railway Museum in 1980.


Specifications by Steve Llanso
Class111111122022082502284566, 2698 / E-6272 / 407 / 880385098552856686318653865487108714871987368821E - 67 - 17.8E 16/24 52AE 16/24 56AE 16/24 58AE 18/24 68CE 18/24 68C - 180E 18/24 68C - smallE-63 - 15.0T E Herrick
Locobase ID10057 10063 11619 12711 12737 6885 10058 6728 6729 10059 10066 10068 10070 10064 6733 10067 6730 6731 6732 10054 10055 10056 10061 10060 10062 10065 10069 7764 6886 6785 6784 6887 6888 6889 7769 14328
RailroadArkansas & Louisiana (MP)Denver, Memphis & Atlantic (MP)Houston, Central Arkansas & Northern (MP)Saint Louis, Brownsville & Mexico (MP)Wabash, Chester & Western (MP)International & Great Northern (MP)Saint Louis, Iron Mountain & Southern (MP)Saint Louis, Iron Mountain & Southern (MP)Missouri Pacific (MP)Saint Louis, Iron Mountain & Southern (MP)Kansas City, Wyandotte & Northwestern (MP)Little Rock, Mississippi River & Texas (MP)Arkansas Midland (MP)Kansas City, Wyandotte & Northwestern (MP)Saint Louis, Iron Mountain & Southern (MP)Saint Louis, Iron Mountain & Southern (MP)Missouri Pacific (MP)Missouri Pacific (MP)Missouri Pacific (MP)Missouri Pacific (MP)Missouri Pacific (MP)Missouri Pacific (MP)Missouri Pacific (MP)Missouri Pacific (MP)Missouri Pacific (MP)Missouri Pacific (MP)Missouri Pacific (MP)Saint Louis, Brownsville & Mexico (MP)International & Great Northern (MP)International & Great Northern (MP)International & Great Northern (MP)International & Great Northern (MP)International & Great Northern (MP)International & Great Northern (MP)Saint Louis, Brownsville & Mexico (MP)Midland Pennsylvania
Whyte4-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-04-4-0
Road Numbers1-2 / 858-86591-6 / 8720-872511-3 / 925-92711, 141220 / 220 / 871 / 87012208 / 88082502, 2505-088702-87064 / 87455-12 / 8815-88206-9 / 8824, 8826-88286-10, 2-3 / 8727-32, 8748-49698-709 / 8601-861272-76, 79-80 / 407-11, 418-19/8803+8509-8511, 8562, 8564+8551-5585668631865386548710-8713, 87168714871987368821, 8823925-92722, 39, 48, 57-586042, 55101-104, 107, 110105-106108-1096-11 / 910-912, 952-9551
GaugeStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStdStd
BuilderNew YorkBrooksBurnham, Parry, Williams & CoBurnham, Williams & CoBaldwinRogersGrantDanforth, CookeRogersGrantNew YorkWilliam MasonBurnham, Williams & CoBurnham, Parry, Williams & CoseveralGrantRhode IslandRogersRhode IslandMissouri PacificRogersHinkleyRogersRogersRogersMissouri PacificHinkleyBaldwinI & GNI & GNRogersSchenectadySchenectadyI & GNBurnham, Williams & CoBaldwin
Year188618861889190419111878187218721880187218871880189218871895187918821882188318931892188718881891187918911887192019041891188018921890189819051914
Valve GearStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase8'8' 9.08' 9.08'8'8' 9.25'8'9' 9.50' 9.50' 9.50' 8.75' 8.75' 8.75'8' 8.67' 9.08'9'9'9'9'9'9' 8.25' 8.50'
Engine Wheelbase22.62'21.75'24.29'23.08'21.65'21.67'23.08'21.67'24.02'23.17'23.29'23.17'24.19'24.19'23.08'22.33'22.96'24.29'23.58'24.04'24.04'23.96'23.96'23.96'22.25'22.58'
Ratio of driving wheelbase to overall engine wheebase 0.35 0.37 0.37 0.39 0.37 0.37 0.40 0.37 0.37 0.41 0.41 0.41 0.36 0.36 0.38 0.36 0.38 0.37 0.38 0.37 0.37 0.38 0.38 0.38 0.37 0.38
Overall Wheelbase (engine & tender)44.96'47.75'44.19'47.22'44.19'48.60'47.42'45.83'47.42'48.73'48.73'45.27'47.29'52.17'43.83'47.29'47.29'46.71'46.71'46.71'53.44'49'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers67600 lbs52000 lbs45200 lbs72500 lbs67000 lbs38000 lbs48000 lbs45000 lbs58000 lbs48000 lbs50000 lbs40000 lbs51400 lbs48000 lbs80000 lbs44000 lbs58000 lbs56000 lbs58000 lbs68000 lbs68000 lbs78000 lbs52000 lbs54000 lbs48000 lbs52000 lbs50000 lbs74300 lbs52000 lbs66000 lbs53000 lbs68000 lbs68000 lbs68000 lbs58480 lbs76000 lbs
Engine Weight103400 lbs78000 lbs72500 lbs113000 lbs104000 lbs62000 lbs72000 lbs70000 lbs88000 lbs72000 lbs78000 lbs68000 lbs78000 lbs78000 lbs126000 lbs72000 lbs88000 lbs86000 lbs88000 lbs108000 lbs108000 lbs94000 lbs78000 lbs86000 lbs66000 lbs78000 lbs78000 lbs118500 lbs88000 lbs100000 lbs90000 lbs104000 lbs104000 lbs104000 lbs92910 lbs115000 lbs
Tender Light Weight78000 lbs137000 lbs70000 lbs64000 lbs48000 lbs64000 lbs64000 lbs88000 lbs38000 lbs58000 lbs90000 lbs92400 lbs36000 lbs62000 lbs62000 lbs62000 lbs74000 lbs75000 lbs79000 lbs64000 lbs76000 lbs66000 lbs62000 lbs58000 lbs137000 lbs92000 lbs88000 lbs73000 lbs88000 lbs88000 lbs88000 lbs103000 lbs80000 lbs
Total Engine and Tender Weight156000 lbs250000 lbs174000 lbs136000 lbs118000 lbs152000 lbs136000 lbs166000 lbs106000 lbs136000 lbs168000 lbs218400 lbs108000 lbs150000 lbs148000 lbs150000 lbs182000 lbs183000 lbs173000 lbs142000 lbs162000 lbs132000 lbs140000 lbs136000 lbs255500 lbs180000 lbs188000 lbs163000 lbs192000 lbs192000 lbs192000 lbs195910 lbs195000 lbs
Tender Water Capacity5000 gals2800 gals2200 gals6000 gals3500 gals1600 gals2900 gals2000 gals3000 gals2400 gals3400 gals2000 gals2900 gals3600 gals4000 gals2400 gals3000 gals3000 gals3000 gals3600 gals3000 gals4000 gals2900 gals3000 gals3000 gals3600 gals2600 gals6000 gals4000 gals4000 gals3200 gals4000 gals4000 gals4000 gals5500 gals4000 gals
Tender Fuel Capacity (oil/coal)7 tons7 tons tons2180 gals gals2 tons tons6 tons9 tons tons tons tons tons tons8 tons tons7.5 tons6 tons7.5 tons8 tons2500 gals8 tons6 tons tons tons8 tons tons2180 gals9 tons9 tons7 tons9 tons9 tons9 tons2466 gals6 tons
Minimum weight of rail (calculated) on which locomotive could run56 lb/yard43 lb/yard38 lb/yard60 lb/yard56 lb/yard32 lb/yard40 lb/yard38 lb/yard48 lb/yard40 lb/yard42 lb/yard33 lb/yard43 lb/yard40 lb/yard67 lb/yard37 lb/yard48 lb/yard47 lb/yard48 lb/yard57 lb/yard57 lb/yard65 lb/yard43 lb/yard45 lb/yard40 lb/yard43 lb/yard42 lb/yard62 lb/yard43 lb/yard55 lb/yard44 lb/yard57 lb/yard57 lb/yard57 lb/yard49 lb/yard63 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter69"64"62"68"62"55"63"63"64"69"63"62.75"62.75"64"69"64"64"58"64"64"67"67"64"64"63"64"64"68"63"63"63"63"62"62"63"68"
Boiler Pressure150 psi140 psi130 psi180 psi180 psi120 psi140 psi145 psi140 psi140 psi140 psi140 psi140 psi140 psi180 psi140 psi140 psi140 psi145 psi140 psi150 psi150 psi140 psi122 psi140 psi140 psi140 psi180 psi160 psi155 psi130 psi150 psi180 psi160 psi160 psi190 psi
Cylinders (dia x stroke)18" x 26"17" x 24"16" x 24"18" x 24"17" x 24"15" x 22"17" x 24"16" x 24"19" x 22"17" x 24"17" x 24"16" x 24"16" x 24"17" x 24"18" x 24"16" x 24"19" x 22"19" x 22"19" x 22"18" x 24"18" x 24"18" x 24"17" x 24"17" x 24"17" x 24"17" x 24"16" x 24"18" x 24"16" x 24"16" x 24"16" x 24"18" x 24"18" x 24"18" x 24"17" x 24"18" x 24"
Tractive Effort15566 lbs12897 lbs10950 lbs17496 lbs17116 lbs9180 lbs13101 lbs12020 lbs14767 lbs11962 lbs13101 lbs11652 lbs11652 lbs12897 lbs17242 lbs11424 lbs14767 lbs16295 lbs15295 lbs14459 lbs14798 lbs14798 lbs12897 lbs11238 lbs13101 lbs12897 lbs11424 lbs17496 lbs13263 lbs12849 lbs10776 lbs15737 lbs19189 lbs17057 lbs14973 lbs18468 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.34 4.03 4.13 4.14 3.91 4.14 3.66 3.74 3.93 4.01 3.82 3.43 4.41 3.72 4.64 3.85 3.93 3.44 3.79 4.70 4.60 5.27 4.03 4.81 3.66 4.03 4.38 4.25 3.92 5.14 4.92 4.32 3.54 3.99 3.91 4.12
Heating Ability
Firebox Area98 sq. ft102 sq. ft149.60 sq. ft138 sq. ft72 sq. ft105 sq. ft108.80 sq. ft115.50 sq. ft135 sq. ft160 sq. ft121 sq. ft125 sq. ft121 sq. ft115 sq. ft118 sq. ft110 sq. ft165 sq. ft120 sq. ft97.50 sq. ft149.60 sq. ft100 sq. ft104 sq. ft104 sq. ft106 sq. ft152 sq. ft104 sq. ft119.10 sq. ft142 sq. ft
Grate Area17.50 sq. ft15.50 sq. ft15.50 sq. ft18.70 sq. ft18 sq. ft13 sq. ft15.30 sq. ft14.60 sq. ft17 sq. ft14.10 sq. ft16.60 sq. ft15.50 sq. ft15.30 sq. ft16.90 sq. ft17 sq. ft14.10 sq. ft20 sq. ft19.70 sq. ft20.20 sq. ft16.70 sq. ft16.80 sq. ft14.80 sq. ft17 sq. ft13.70 sq. ft15.20 sq. ft16.50 sq. ft18.70 sq. ft15.50 sq. ft17 sq. ft17 sq. ft18 sq. ft19.40 sq. ft17 sq. ft16.49 sq. ft29.30 sq. ft
Evaporative Heating Surface1414 sq. ft1092 sq. ft1686 sq. ft1465 sq. ft782 sq. ft1031 sq. ft858 sq. ft1147 sq. ft1031 sq. ft1092 sq. ft1092 sq. ft1031 sq. ft1092 sq. ft1724 sq. ft1031 sq. ft1206 sq. ft1108 sq. ft1206 sq. ft1129 sq. ft1573 sq. ft1180 sq. ft1031 sq. ft1180 sq. ft776 sq. ft1180 sq. ft1092 sq. ft1260 sq. ft936 sq. ft1268 sq. ft1181 sq. ft1613 sq. ft1578 sq. ft1268 sq. ft1186 sq. ft1756 sq. ft
Superheating Surface214 sq. ft
Combined Heating Surface1414 sq. ft1092 sq. ft01686 sq. ft1465 sq. ft782 sq. ft1031 sq. ft858 sq. ft1147 sq. ft1031 sq. ft1092 sq. ft1092 sq. ft1031 sq. ft1092 sq. ft1724 sq. ft1031 sq. ft1206 sq. ft1108 sq. ft1206 sq. ft1129 sq. ft1573 sq. ft1180 sq. ft1031 sq. ft1180 sq. ft776 sq. ft1180 sq. ft1092 sq. ft1474 sq. ft936 sq. ft1268 sq. ft1181 sq. ft1613 sq. ft1578 sq. ft1268 sq. ft1186 sq. ft1756 sq. ft
Evaporative Heating Surface/Cylinder Volume184.65173.20238.52232.36173.79163.52153.62158.88163.52173.20195.52184.60173.20243.90184.60167.05153.47167.05159.72222.53166.94163.52187.15123.08187.15195.52178.25167.59227.03211.46228.19223.24179.39188.10248.42
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation262521702015336632401560214221172380197423242170214223663060197428002758292923380252020722074191821282310336624802635221027003492272026385567
Same as above plus superheater percentage262521702015336632401560214221172380197423242170214223663060197428002758292923380252020722074191821282310387124802635221027003492272026385567
Same as above but substitute firebox area for grate area147001428002692824840864001522515232000161701890028800016940175001754516100177000154002013001680013650309671600016120135201590027360166401905626980
Power L14289379407025635727920377034980004217418573910374632493880360051260374541380421642231135443205210415747756152418247477512
Power MT279.75321.700427.24418.35323.960369.40265.92000361.75384.43407.360284.78255.81294.96233.43332.380317.55337.880357.49372.40673.79366.31348.06345.83309.62398.91271.17357.91435.82

Reference

Credits

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