Boston & Lowell 0-6-0 "Switcher" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class Milo (Locobase 13552)

Data from table entitled "Table of Dimensions of the Locomotives" in New England Association of Railway Superintendents, Report of the Trials of Locomotive Engines Made Upon 1st and 2nd October, 1851 (Boston: B J Yerrinton, Printers, 1852), p. 16.

Milo was one of two all-adhesion engines (the other was Highlander) to participate in the October 1851 trials. Freight engines ran a different route that measured only 1.7 miles in length hauling 114 loaded cars that aggregated 650 tons.

Specifications by Steve Llanso of Sweat House Media
ClassMilo
Locobase ID13,552
RailroadBoston & Lowell
CountryUSA
Whyte0-6-0
Number in Class1
Road Numbers
GaugeStd
Number Built1
BuilderB&L
Year1851
Valve GearV-hook
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheebase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)38,900 / 17,645
Engine Weight (lbs / kg)38,900 / 17,645
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)22 / 11
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)120 / 8.30
High Pressure Cylinders (dia x stroke) (in / mm)13.5" x 20" / 343x508
Tractive Effort (lbs / kg)7746 / 3513.53
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.02
Heating Ability
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)
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 Computation
Same as above plus superheater percentage
Same as above but substitute firebox area for grate area
Power L1
Power MT