Rio Grande & Eagle Pass 4-4-0 "American" Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 11592)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 15, p. 37. Works number was 9891 in March 1889. See the Handbook of Texas Online http://www.tshaonline.org/handbook/online/articles/RR/eqrft.html . This small, lightly built railroad served the coal mines at Santo Tomas Mine along a 27 3/4-mile route from Laredo. Over time, as the mines petered out, the end-of-track inched away from the mines. The last big mine closed in 1939 and the RG & EP filed for abandonment in 1942, but remained opened to Milepost 7 to serve a gunnery range. Thgat last segment closed in 1947.

Specifications by Steve Llanso of Sweat House Media
Class1
Locobase ID11,592
RailroadRio Grande & Eagle Pass
CountryUSA
Whyte4-4-0
Number in Class1
Road Numbers1
GaugeStd
Number Built1
BuilderBurnham, Parry, Williams & Co
Year1889
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)8 / 2.44
Engine Wheelbase (ft / m)21.75 / 6.63
Ratio of driving wheelbase to overall engine wheebase 0.37
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)48,000 / 21,772
Engine Weight (lbs / kg)74,000 / 33,566
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2600 / 9.85
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)40 / 20
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)62 / 1575
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)16" x 24" / 406x610
Tractive Effort (lbs / kg)10,950 / 4966.84
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.38
Heating Ability
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)15.50 / 1.44
Evaporative Heating Surface (sq ft / m2)
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2015
Same as above plus superheater percentage2015
Same as above but substitute firebox area for grate area
Power L1
Power MT