Este 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 7 (Locobase 15417)

Data from DeGolyer, Vol 79, pp. 113+. Works number was 60681 in October 1928.

The Este was built on 60 lb/yard (30 kg/metres) on a profile that featured grades "not over 3%" and curve radii of 197 feet (60 metres) or 29 degrees.

Wes Barris's notes that the 7 was eventually put on display in the Parque de las Ciencias in Bayamón..

Specifications by Steve Llanso of Sweat House Media
Locobase ID15,417
Number in Class2
Road Numbers7
Number Built4
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft) 7.50
Engine Wheelbase (ft)14.67
Ratio of driving wheelbase to overall engine wheebase 0.51
Overall Wheelbase (engine & tender) (ft)40.60
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)60,000
Engine Weight (lbs)70,000
Tender Loaded Weight (lbs)52,500
Total Engine and Tender Weight (lbs)122,500
Tender Water Capacity (gals)2200
Tender Fuel Capacity (oil/coal) (gals/tons)5
Minimum weight of rail (calculated) (lb/yd)33
Geometry Relating to Tractive Effort
Driver Diameter (in)37
Boiler Pressure (psi)180
High Pressure Cylinders (dia x stroke) (in)14" x 18"
Tractive Effort (lbs)14,589
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.11
Heating Ability
Firebox Area (sq ft)66
Grate Area (sq ft)17.10
Evaporative Heating Surface (sq ft)971
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)971
Evaporative Heating Surface/Cylinder Volume302.77
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3078
Same as above plus superheater percentage3078
Same as above but substitute firebox area for grate area11,880
Power L14503
Power MT496.37

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