East Cornwall Mineral Railway 0-4-0 Locomotives in Great_Britain

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 8199)

Data from [], accessed 23 February 2007. The Colonel Hollman Fred Stephens railway site -- [], also accessed 23 Feb 2007 -- gives a good summary of the ECMR's profile and history.

These little engines (works #1660-1661) had tanks of an unusual cross-section straddling their boilers. In place of the more typical "cruller" shape, these had an ogee configuration; that is, the tank tapered in toward the center line as it rose above the boiler.

#2 was substantially made over with a new, more conventional boiler in 1899 and converted to run on the standard gauge in 1908 as an 0-4-2ST (Its wheelbase now spanned 9 ft 4 in/2.84 m ). It eventually ended up on the Bere Alston and Calstock Light Railway (Plymouth and South Western Junction Railway) as their Hesperus. But it didn't run long as the passenger service for which it was intended materialized only slowly and newer engines were available to haul it. So in 1912 it entered service on the Selsey Tram, where it served until 1927.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID8199
RailroadEast Cornwall Mineral Railway
CountryGreat Britain
Number in Class2
Road Numbers1-2
Number Built2
BuilderNeilson & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)5 / 1.52
Engine Wheelbase (ft / m)5 / 1.52
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)5 / 1.52
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)26,320 / 11,939
Engine Weight (lbs / kg)26,320 / 11,939
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)26,320 / 11,939
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)22 / 11
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)36 / 914
Boiler Pressure (psi / kPa)85 / 5.90
High Pressure Cylinders (dia x stroke) (in / mm)10" x 18" / 254x457
Tractive Effort (lbs / kg)3613 / 1638.83
Factor of Adhesion (Weight on Drivers/Tractive Effort) 7.28
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)
Evaporative Heating Surface (sq ft / m2)597 / 55.48
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)597 / 55.48
Evaporative Heating Surface/Cylinder Volume364.86
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

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