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 Middle Run Media | |
|---|---|
| Class | Hercules |
| Locobase ID | 12390 |
| Railroad | Edinburgh & Glasgow |
| Country | Great Britain |
| Whyte | 0-6-0T |
| Number in Class | |
| Road Numbers | |
| Gauge | Std |
| Number Built | |
| Builder | |
| Year | 1844 |
| Valve Gear | Stephenson |
| 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 / 690 |
| 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 Volume | 147.99 |
| 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 area | 6000 |
| Power L1 | 1742 |
| Power MT | 194.09 |