Alabama Central / Atlantic & Carolina 2-6-2 "Prairie" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 14317)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 52, pp. 400. See also Mississippi Rails at [external link] . Works number was 41513 in June 1914.

The Alabama Central was based in Jasper, Ala and was incorporated in 1906. Its first 6.7 miles (10.8 km) ended at the Manchester Saw Mill. In 1912, the line extended to Fords, later renamed Sunlight. Before World War One, the ACRR ran twice-a-day passenger service and carried 3,000 passengers a year. This logging Prairie probably served the coal and logging traffic.

The ACRR sold the 2 to locomotive rebuilder/reseller Southern Iron & Equipment in 1933. SI&E sent it on to its second home, Peavey Wilson Lumber Company of Holopaw, Fla., as their #6. It ran until it was scrapped in 1951.


Class 7 (Locobase 14282)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 52, p. 296. Works number was 41382 in May 1914.

The Rowland Lumber Company bought this engine to lease to its captive A&C railroad. It connected Warsaw, NC, on the Atlantic Coast Line, with Kenansville 10 miles away. Even in the early 20s, the A&C maintained passenger service carrying, for example, 12,451 passengers in 1920. Apparently, the railroad kept the engine until it was closed and torn up in 1935


Class 8 (Locobase 14040)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 45, p. 26. (Thanks to Chris Hohl for his email supplying the tender's wood capacity.) Works numbers were 41202 in February 1914.

Originally ordered by the Holly Shelter Land Company as their #1, this wood-burning logging Mogul served the Rowland Lumber Company's (of Bowden, North Carolina) 9 1/2 mile (15.3 km) road between Kenansville & Warsaw. Its tender held two cords of wood.

Principal Dimensions by Steve Llanso of Sweat House Media
Class278
Locobase ID14,317 14,282 14,040
RailroadAlabama CentralAtlantic & CarolinaAtlantic & Carolina
CountryUSAUSAUSA
Whyte2-6-22-6-22-6-2
Number in Class111
Road Numbers278
GaugeStdStdStd
Number Built111
BuilderBaldwinBaldwinBaldwin
Year191419141914
Valve GearWalschaertStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.17 / 2.808 / 2.44 7.83 / 2.39
Engine Wheelbase (ft / m)24.67 / 7.5222.75 / 6.9320.58 / 6.27
Ratio of driving wheelbase to overall engine wheebase 0.37 0.35 0.38
Overall Wheelbase (engine & tender) (ft / m)48.83 / 14.8846.08 / 14.0539.77 / 12.12
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)83,000 / 37,64855,000 / 24,94840,000 / 18,144
Engine Weight (lbs / kg)110,000 / 49,89577,000 / 34,92755,000 / 24,948
Tender Loaded Weight (lbs / kg)90,000 / 40,82360,000 / 27,21640,000 / 18,144
Total Engine and Tender Weight (lbs / kg)200,000 / 90,718137,000 / 62,14395,000 / 43,092
Tender Water Capacity (gals / ML)4500 / 17.053000 / 11.362000 / 7.58
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)6 / 5.505 / 4.50
Minimum weight of rail (calculated) (lb/yd / kg/m)46 / 2331 / 15.5022 / 11
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)46 / 116844 / 111836 / 914
Boiler Pressure (psi / kPa)180 / 12.40160 / 11160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x61013" x 22" / 330x55912" x 16" / 305x406
Tractive Effort (lbs / kg)20,435 / 9269.1711,492 / 5212.698704 / 3948.07
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.06 4.79 4.60
Heating Ability
Firebox Area (sq ft / m2)120 / 11.1574 / 6.8758 / 5.39
Grate Area (sq ft / m2)15.60 / 1.4513.30 / 1.2414 / 1.30
Evaporative Heating Surface (sq ft / m2)1602 / 148.83767 / 71.26438 / 40.69
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1602 / 148.83767 / 71.26438 / 40.69
Evaporative Heating Surface/Cylinder Volume286.84226.94209.13
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation280821282240
Same as above plus superheater percentage280821282240
Same as above but substitute firebox area for grate area21,60011,8409280
Power L1544139473337
Power MT433.57474.63551.76

Reference