Chicago & Alton / Saint Louis, Peoria & Northern 4-4-0 "American" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 168/D6 (Locobase 10268)

Data from C & A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 1148-1151, 1153, 1155 in August 1879.


Class 28/D5 (Locobase 10267)

Data from C & A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also DeGolyer, Volume 21, p. 120. Works numbers were 15679-15680 in January 1898, and 15898 in May 1898. See Locobase 7005 for the Peoria Short Line's history.

These Eight-wheelers were typical late 19th century local passenger engines with deep, narrow fireboxes. 30 was delivered with crystal plate-glass cab windows, glass-covered number plates, and a special finish (D 158) as it was headed for the 1898 Trans-Mississippi Exposition at Omaha in July, where it was displayed with seven other new locomotives.

They traveled under Peoria Short Line colors for about two years wowhen that financially troubled system was sold to both the Illinois Central and the Chicago & Alton. As the Alton's D-5s, they operated for another 25-30 years before being scrapped in 1927 (15898), and February 1929.


Class D Odd (Locobase 9090)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 1124, 1126, 1128 in May 1879.

The trio of 1879 Schenectady engines of the four. Locobase 9091 shows a rebuilt 167 with taller drivers and substantially greater weight.


Class D Odd (Locobase 9091)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

One of the three 1879 Eight-wheelers shown in Locobase 9090, this Eight-wheeler was rebuilt as a purely passenger engine with 70" drivers. It's likely to have include replacement of the original boiler as it weighed 9 short tons (8,165 kg) more than the originals.


Class D1 / D1a (Locobase 7367)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

These Eight-wheelers showed up in the 1918 diagram book. They came from several sources. 20 was a home-built that apparently remained unchanged through its career. Schenectady supplied 56 and 215 in 1883 to the same design.


Class D1C (Locobase 7368)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Delivered in the same year as the D1A (Locobase 7367), this Eight-wheeler had a few more tubes and a little more heating surface as a result.


Class D2 (Locobase 7369)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

In June 1880, the Alton's shops turned out eight Eight-wheelers with freight-service driver diameters of 60". Over the years, several of the class were rebuilt, one of which was 207. This particular engine had more of a passenger feel to it. Even after the rebuild, the 207's boiler was smaller than many of the 1880s 4-4-0s on the railroad while the firebox stayed the same size. There was also more weight on the drivers and overall.


Class D2A (Locobase 7370)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Predating the D2 (Locobase 7369) by 2 years (which suggests a retrospective classification), this shop-built locomotive had a big boiler and seems to have been based on the 1880 Schenectady engine shown in Locobase 7368. One significant difference is the taller drivers.


Class D2B (Locobase 7371)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 1762-1766 in August 1883.

This was another of the C & A's Eight-wheelers that was built to the same basic specs over a three-five year period in the 1880s by Schenectady and the shops.


Class D2C (Locobase 7372)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Delivered in the same year as the D1C (Locobase 7367), this Eight-wheeler was identical to the Schenectady-built engine except for its taller drivers.


Class D3 (Locobase 7373)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Looking more like modern Eight-wheelers, this pair of shop-builts included a larger boiler and grate than earlier C & A 4-4-0s.


Class D3A (Locobase 10269)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

In the same year that the C & A produced two rather large Eight-wheelers (Locobase 7373) they delivered this single engine with fewer tubes in the same boiler, but a larger, deeper firebox.


Class D3B (Locobase 10270)

Data from C&A 6 - 1918 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Locobase suspects that the building date of 1905 represents the year that the C & A overhauled an older locomotive. Perhaps they replaced an older boiler with a new one of similar size, but a more modern configuration.


Class D7C (Locobase 3926)

Builder info from B.Rumary, 25 Kingscombe, Gurney Slade, Radstock, BA3 4TH, ENGLAND and Jeremy Lambert as supplied by Allen Stanley in March 2004. Works #3368-3379, produced in November-December 1899.

The Alton had recently introduced day-service between Chicago and St. Louis on a leisurely schedule of 7 hours, 59 minutes southbound (13 stops), 7 hours 54 minutes northbound (15 stops) for the 284 miles. The train, designed to Pullman standards, had 6 cars including a postal car.

Features of the design, according to Railroad Gazette (8 Jan 1900), were the use of 10" piston valves and cast steel in many components. Visually they had a characteristic eyebrow dormer on each side of the cab roof and were painted maroon. They had the typical high running board, spoked drivers and pony truck wheels of the turn-of-the-century American locomotive.

Rumary-Lambert report that the class was delivered with 19 1/2" diameter cylinders that were soon bored out to 20" and some were later fitted with 19" cylinders. The data in the spec, however, comes from the RG account, which was published at the time of their construction.

Drury (1993) comments that these "elegant" locomotives soon proved insufficiently powerful for the passenger service they hauled. Most were scrapped in a single year - 1933.

Specifications by Steve Llanso of Sweat House Media
Class168/D628/D5D OddD OddD1 / D1a
Locobase ID10268 10267 9090 9091 7367
RailroadChicago & Alton (C&A)Saint Louis, Peoria & Northern (C&A)Chicago & Alton (C&A)Chicago & Alton (C&A)Chicago & Alton (C&A)
CountryUSAUSAUSAUSAUSA
Whyte4-4-04-4-04-4-04-4-04-4-0
Number in Class43311
Road Numbers168-17128-30/109-111165-16716720, 56, 215
GaugeStdStdStdStdStd
Number Built4331
BuilderSchenectadyBurnham, Williams & CoSchenectadyC&Aseveral
Year1879189818791880
Valve GearStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase 8.50' 8.08' 8.67' 8.67' 8.67'
Engine Wheelbase22.98'23.92'23.10'22.92'23.11'
Ratio of driving wheelbase to overall engine wheebase 0.37 0.34 0.38 0.38 0.38
Overall Wheelbase (engine & tender)44.31'47.75'47.06'47.60'44.56'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers53200 lbs75100 lbs60300 lbs54600 lbs
Engine Weight84000 lbs115800 lbs84000 lbs103500 lbs88600 lbs
Tender Light Weight79150 lbs76000 lbs90600 lbs90600 lbs79150 lbs
Total Engine and Tender Weight163150 lbs191800 lbs174600 lbs194100 lbs167750 lbs
Tender Water Capacity3500 gals4000 gals4500 gals4500 gals3500 gals
Tender Fuel Capacity (oil/coal)7 tons tons7 tons7 tons7 tons
Minimum weight of rail (calculated)44 lb/yard63 lb/yard050 lb/yard46 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter63"70"64"70"63"
Boiler Pressure150 psi180 psi165 psi165 psi150 psi
Cylinders (dia x stroke)17" x 24"18" x 24"18" x 24"18" x 24"17" x 24"
Tractive Effort14037 lbs16996 lbs17040 lbs15580 lbs14037 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.79 4.42 3.87 3.89
Heating Ability
Firebox Area102.60 sq. ft154.80 sq. ft97.50 sq. ft97.50 sq. ft90 sq. ft
Grate Area16.80 sq. ft18.50 sq. ft17.10 sq. ft17.10 sq. ft17.20 sq. ft
Evaporative Heating Surface1144 sq. ft1646 sq. ft1325 sq. ft1325 sq. ft1225 sq. ft
Superheating Surface
Combined Heating Surface1144 sq. ft1646 sq. ft1325 sq. ft1325 sq. ft1225 sq. ft
Evaporative Heating Surface/Cylinder Volume181.44232.86187.45187.45194.29
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation25203330282228222580
Same as above plus superheater percentage25203330282228222580
Same as above but substitute firebox area for grate area1539027864160881608813500
Power L141397190451349364184
Power MT343.04422.14360.93337.88

Specifications by Steve Llanso of Sweat House Media
ClassD1CD2D2AD2BD2C
Locobase ID7368 7369 7370 7371 7372
RailroadChicago & Alton (C&A)Chicago & Alton (C&A)Chicago & Alton (C&A)Chicago & Alton (C&A)Chicago & Alton (C&A)
CountryUSAUSAUSAUSAUSA
Whyte4-4-04-4-04-4-04-4-04-4-0
Number in Class11111
Road Numbers2192071374155
GaugeStdStdStdStdStd
Number Built11111
BuilderSchenectadyChicago & AltonChicago & AltonSchenectadyChicago & Alton
Year18801883188118831881
Valve GearStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase 8.67' 8.67' 8.67' 8.67' 8.67'
Engine Wheelbase23.15'23.02'23.02'23.02'23.15'
Ratio of driving wheelbase to overall engine wheebase 0.37 0.38 0.38 0.38 0.37
Overall Wheelbase (engine & tender)47.31'44.52'44.52'44.52'47.31'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers60400 lbs62900 lbs57400 lbs59000 lbs60400 lbs
Engine Weight98100 lbs102000 lbs92000 lbs93200 lbs98100 lbs
Tender Light Weight90600 lbs97000 lbs79150 lbs79150 lbs90600 lbs
Total Engine and Tender Weight188700 lbs199000 lbs171150 lbs172350 lbs188700 lbs
Tender Water Capacity4500 gals4500 gals3500 gals3500 gals4500 gals
Tender Fuel Capacity (oil/coal)7 tons8 tons7 tons7 tons7 tons
Minimum weight of rail (calculated)50 lb/yard52 lb/yard48 lb/yard49 lb/yard50 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter64"70"70"64"70"
Boiler Pressure165 psi160 psi165 psi165 psi165 psi
Cylinders (dia x stroke)17" x 24"18" x 24"17" x 24"17" x 24"17" x 24"
Tractive Effort15200 lbs15108 lbs13897 lbs15200 lbs13897 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.97 4.16 4.13 3.88 4.35
Heating Ability
Firebox Area97.50 sq. ft127.50 sq. ft89.80 sq. ft89.80 sq. ft97.50 sq. ft
Grate Area17.20 sq. ft17.10 sq. ft17.10 sq. ft17.10 sq. ft17.10 sq. ft
Evaporative Heating Surface1325 sq. ft1058 sq. ft1309 sq. ft1301 sq. ft1325 sq. ft
Superheating Surface
Combined Heating Surface1325 sq. ft1058 sq. ft1309 sq. ft1301 sq. ft1325 sq. ft
Evaporative Heating Surface/Cylinder Volume210.15149.68207.61206.34210.15
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation28382736282228222822
Same as above plus superheater percentage28382736282228222822
Same as above but substitute firebox area for grate area1608820400148171481716088
Power L150594477536748855534
Power MT369.31313.83412.27365.07403.99

Specifications by Steve Llanso of Sweat House Media
ClassD3D3AD3BD7C
Locobase ID7373 10269 10270 3926
RailroadChicago & Alton (C&A)Chicago & Alton (C&A)Chicago & Alton (C&A)Chicago & Alton (C&A)
CountryUSAUSAUSAUSA
Whyte4-4-04-4-04-4-04-4-0
Number in Class21212
Road Numbers105, 108107116-117500-511
GaugeStdStdStdStd
Number Built21212
BuilderChicago & AltonChicago & AltonChicago & AltonBrooks
Year1892189219051899
Valve GearStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase 9.17' 9.17' 9.17' 8.75'
Engine Wheelbase23.52'23.52'23.52'24.83'
Ratio of driving wheelbase to overall engine wheebase 0.39 0.39 0.39 0.35
Overall Wheelbase (engine & tender)48.27'45.02'45.15'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers64000 lbs61300 lbs90500 lbs
Engine Weight99200 lbs100300 lbs139000 lbs
Tender Light Weight90600 lbs87000 lbs87000 lbs120000 lbs
Total Engine and Tender Weight186200 lbs187300 lbs259000 lbs
Tender Water Capacity4500 gals4000 gals4000 gals6000 gals
Tender Fuel Capacity (oil/coal)7 tons8 tons8 tons12 tons
Minimum weight of rail (calculated)053 lb/yard51 lb/yard75 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter70"70"64"73"
Boiler Pressure180 psi165 psi160 psi210 psi
Cylinders (dia x stroke)18" x 24"18" x 24"18" x 24"19" x 26"
Tractive Effort16996 lbs15580 lbs16524 lbs22951 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.11 3.71 3.94
Heating Ability
Firebox Area132.40 sq. ft146 sq. ft115 sq. ft177 sq. ft
Grate Area18.50 sq. ft18.50 sq. ft17.10 sq. ft31.80 sq. ft
Evaporative Heating Surface1592 sq. ft1200 sq. ft1045 sq. ft2177 sq. ft
Superheating Surface
Combined Heating Surface1592 sq. ft1200 sq. ft1045 sq. ft2177 sq. ft
Evaporative Heating Surface/Cylinder Volume225.22169.77147.84255.15
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3330305327366678
Same as above plus superheater percentage3330305327366678
Same as above but substitute firebox area for grate area23832240901840037170
Power L16696525639119169
Power MT362.11281.31446.72


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