Edinburgh & Glasgow 0-6-0 Locomotives in Great_Britain

Class Details by Steve Llanso of Sweat House Media

Class Hercules (Locobase 12390)

Data from G A Sekon, "Illustrated Interviews - Mr. John Conacher," Railway Magazine (April 1898), pp. 289-306

During the course of a long interview with "Sekon" (George Augustus Nokes), Conacher described in detail the winch system in use for 56 years at the time of the interview to haul departing trains up the 1 in 45 grade (2.2%) out of Glasgow. The only time self-propelled steam traction performed the service was a 4-year period from 1844-1848.

The mighty engine that undertook this labor displayed characteristics of a design in transition. The cylinder were perched high on the boiler and drove down onto the middle axle. A very large steam dome stood over the gap between the first two axles; this enormous vessel and the small amount of water in the tanks clearly imposed a tight limit on this banking engine's operational radius. The tall stack clouded up the tunnels to an intolerable degree and the E & G returned to winch traction.

NB: Boiler pressure is an estimate based on other 0-6-0s produced in England in the same period. Tube length is an estimate based on the calculation of tube surface area by subtracting reported firebox heating surface from reported total evaporative heating surface

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID12390
RailroadEdinburgh & Glasgow
CountryGreat Britain
Number in Class
Road Numbers
Number Built
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)59,360 / 26,925
Engine Weight (lbs / kg)59,360 / 26,925
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)59,360 / 26,925
Tender Water Capacity (gals / ML)240 / 0.91
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)51.50 / 1308
Boiler Pressure (psi / kPa)100 / 6.90
High Pressure Cylinders (dia x stroke) (in / mm)15.5" x 25" / 394x635
Tractive Effort (lbs / kg)9913 / 4496.47
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.99
Heating Ability
Tubes (number - dia) (in / mm)136 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.50 / 3.20
Firebox Area (sq ft / m2)60 / 5.58
Grate Area (sq ft / m2)
Evaporative Heating Surface (sq ft / m2)808 / 75.09
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)808 / 75.09
Evaporative Heating Surface/Cylinder Volume147.99
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 area6000
Power L11742
Power MT194.09

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