Washington, Brandywine & Point Lookout 2-6-0 "Mogul" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 15320)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 73, pp. 374. See also Paul C Leibe, "Trains once rolled regularly through St Mary's", 27 December 2006 archive by SoMdNews.com at [] . and"Washington, Brandywine and Point Lookout

Railroad" at [] Works number was 58005 in September 1924.

Based in Charlotte Hall, Maryland, the WP&LP was only the latest incarnation of this railroad, which was originally chartered as the Southern Maryland Railroad in 1869. The two citations above give the details of the complicated history of the railroad, which gained its name in 1917. At the time, the line was on the verge of abandonment, but local farmers combined to buy the line.

It was during this period that the WB&LP bought this small Mogul. After about fifteen years in service, the 5 was sold to the Hoosac Tunnel & Wilmington in August 1938, where it operated until it scrapped in 1949.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID15320
RailroadWashington, Brandywine & Point Lookout
Number in Class1
Road Numbers5
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.50 / 2.90
Engine Wheelbase (ft / m)16.83 / 5.13
Ratio of driving wheelbase to overall engine wheelbase 0.56
Overall Wheelbase (engine & tender) (ft / m)43.06 / 13.12
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)66,000 / 29,937
Engine Weight (lbs / kg)79,000 / 35,834
Tender Loaded Weight (lbs / kg)70,000 / 31,752
Total Engine and Tender Weight (lbs / kg)149,000 / 67,586
Tender Water Capacity (gals / ML)3500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)15" x 20" / 381x508
Tractive Effort (lbs / kg)16,393 / 7435.75
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.03
Heating Ability
Tubes (number - dia) (in / mm)186 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.50 / 2.90
Firebox Area (sq ft / m2)88 / 8.18
Grate Area (sq ft / m2)15.90 / 1.48
Evaporative Heating Surface (sq ft / m2)1005 / 93.37
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1005 / 93.37
Evaporative Heating Surface/Cylinder Volume245.72
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2862
Same as above plus superheater percentage2862
Same as above but substitute firebox area for grate area15,840
Power L14452
Power MT446.13

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