Norfolk Southern / Raleigh & Southport 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 10 / E-1 (Locobase 13192)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volumes 39, p. 3. Works number was 37161 in November 1911.

Produced as one of a pair (the other going to the Elkin & Alleghany and shown in Locobse 13193), the 10 stayed on the rails to which it was delivered for decades. Only in June 1948 was it sold to the Atlantic & Western of Sanford, NC and renumbered 12. At this point, the 12 was reunited with its production-line companion, which now bore A & W's number 10.

Although it was soon retired, the 12 was not scrapped. Rather, it was donated in 1966 to Sanford's Rail House Historical Association, which put it on display.

Class E-2 - saturated (Locobase 13542)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 34, p. 132 .Works numbers were 34682-34684 in May 1910.

Consolidations of no special note, this class of engines toiled for the N & S for almost 40 years. They were bought with 1% grades on 60-lb rail in mind.

Class E-2 - superheated (Locobase 4947)

Data is taken from locomotive diagrams published at supplemented by Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volumes 47, p. 32 and 51, p. 346.

Works numbers were

A low-drivered Consolidation with 12"-diameter piston valves. Profile included stubby flared stack, rounded domes. The E-2 class actually consisted of 14 locomotives built in 3 batches as follows:

Engine Tractive effort Year

204-206 172,525 34,986 1910 (BP at 190 lb psi) with a saturated boiler; See Locobase 13542.

The next batch introduced superheating to the class and dropped the BP slightly.

207-211 172,525 36,800 1913

Works numbers were 40096-40100 in June 1913.

In the last batch, the engine added almost 7,000 lb in weight.

212-217 179,350 36,800 1916

Works numbers were 42925-42930 in February 1916.

Class E-3 (Locobase 4949)

Data is taken from locomotive diagrams published at (last accessed 23 August 2008) and NdeM 1946 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. (Thanks to Chris Hohl for his 7 March 2016 email reporting the original tender capacities and weights.) See also DeGolyer, Volume 68, pp. 41+ and Volume 77, pp. 506+. Works numbers were 55557-55561 in August 1922, 56855-56859 in August 1923, 57009 in September, 59065-59069 in March 1926, 59822-59824 in February 1927.

A classic Consolidation with 57" drivers and 12" (305 mm) piston valves. Profile included stubby flared stack, rounded domes. Baldwin's specs included the requirement that the valve gear be of the "Improved" Walschaert type. Meaning? "Gear to have benefit of best refinement of design and application of materials to effect lightness in weight without sacrifice of strength."

Tender capacity as specified was 10 tons of coal, but that soon increased to the 12 1/2 tons shown in Locobase. Although the tender's design number and construction details remained the same throughout the production run, those for road numbers 532-542 weighed 142,800 lb(64,773 kg) loaded while those behind road numbers 227-231 and 543-545 weighed 145,000 lb (65,771 kg).

After two decades in NS service, the railroad sold seven of the class to the Nacional de Mexico in August 1948 where they were renumbered 1650-1656 (ex-534-537, 531-532, 540). In the midst of later retirements, the NS sold 539 to the NdeM as their 202. The rest were retired in 1952-1953.

The first five were numbered 227-231 on delivery and renumbered as shown in the specs in 1923. The other locomotives were delivered as 532-545.

Eight of these engines later went to the Nacional de Mexico as their class GR-48 Asarco (as well as 539 for parts), from which diagrams most of the data is extracted. The others were retired beginning in December 1951 (543). After the bulk was retired in 1952-1953, three (538, 542, 544) were scrapped in January 1954.

Specifications by Steve Llanso of Sweat House Media
Class10 / E-1E-2 - saturatedE-2 - superheatedE-3
Locobase ID13192 13542 4947 4949
RailroadRaleigh & Southport (NS)Norfolk Southern (NS)Norfolk Southern (NS)Norfolk Southern (NS)
Number in Class131119
Road Numbers10 / 99 / 203120-122 / 204-206207-217527-545
Number Built131119
Valve GearWalschaertStephensonBakerWalschaert
Locomotive Length and Weight
Driver Wheelbase14'16'16'16.67'
Engine Wheelbase22.08'24.25'24.50'24.67'
Ratio of driving wheelbase to overall engine wheebase 0.63 0.66 0.65 0.68
Overall Wheelbase (engine & tender)58.87'
Axle Loading (Maximum Weight per Axle)41350 lbs44770 lbs
Weight on Drivers128000 lbs144000 lbs158150 lbs168390 lbs
Engine Weight144000 lbs162000 lbs179350 lbs191430 lbs
Tender Light Weight120000 lbs142800 lbs148800 lbs
Total Engine and Tender Weight282000 lbs322150 lbs340230 lbs
Tender Water Capacity4500 gals6000 gals7500 gals7500 gals
Tender Fuel Capacity (oil/coal)8 tons8 tons10 tons12.5 tons
Minimum weight of rail (calculated)53 lb/yard60 lb/yard66 lb/yard70 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"56"56"57"
Boiler Pressure200 psi180 psi185 psi200 psi
Cylinders (dia x stroke)20" x 24"21" x 28"21" x 28"22" x 28"
Tractive Effort32640 lbs33737 lbs34674 lbs40418 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.92 4.27 4.56 4.17
Heating Ability
Firebox Area155 sq. ft151 sq. ft159 sq. ft182 sq. ft
Grate Area30 sq. ft40 sq. ft40 sq. ft46.70 sq. ft
Evaporative Heating Surface2033 sq. ft2710 sq. ft1882 sq. ft2277 sq. ft
Superheating Surface387 sq. ft528 sq. ft
Combined Heating Surface2033 sq. ft2710 sq. ft2269 sq. ft2805 sq. ft
Evaporative Heating Surface/Cylinder Volume232.96241.43167.67184.83
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6000720074009340
Same as above plus superheater percentage60007200865811115
Same as above but substitute firebox area for grate area31000271803441643316
Power L153635186947612244
Power MT369.48317.59528.38641.21



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