Data from W H Maw and William Dredge, "Locomotives", Reports on the Vienna Universal Exhibition, Part II (London: George Eyre and William Spottiswoode, 1874), pp. 421-423.
Unlike some of the locomotives appearing at the 1873 Exhibition, this design was designed to serve modestly paced passenger trains. The specifications from Bergisch's locomotive superintendent Stambke required a 31-mph (50-kmh) speed up a 1 in 72 (1.35%) grade pulling a 140-ton train in the Upper Rhine region where the railroad ran. It was fitted with a Belpaire firebox. Maw and Dredge pronounced the engine as "altogether well-built and of a very serviceable type."
NB: Heating surface areas in the specifications are given in the original as derived from the water-side diameter of the tubes.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Bismark |
| Locobase ID | 13219 |
| Railroad | Hannover State |
| Country | Germany |
| Whyte | 2-4-0 |
| Number in Class | |
| Road Numbers | |
| Gauge | Std |
| Number Built | |
| Builder | Hannover |
| Year | 1873 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.53 / 2.60 |
| Engine Wheelbase (ft / m) | 14.44 / 4.40 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.59 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 28,561 / 12,955 |
| Weight on Drivers (lbs / kg) | 57,320 / 26,000 |
| Engine Weight (lbs / kg) | 77,162 / 35,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 48 / 24 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 72.80 / 1850 |
| Boiler Pressure (psi / kPa) | 145 / 1000 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16.5" x 22.01" / 419x559 |
| Tractive Effort (lbs / kg) | 10,145 / 4601.70 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.65 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 190 - 1.89" / 48 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.61 / 3.54 |
| Firebox Area (sq ft / m2) | 81.78 / 7.60 |
| Grate Area (sq ft / m2) | 20.98 / 1.95 |
| Evaporative Heating Surface (sq ft / m2) | 1185 / 110.09 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1185 / 110.09 |
| Evaporative Heating Surface/Cylinder Volume | 217.55 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3042 |
| Same as above plus superheater percentage | 3042 |
| Same as above but substitute firebox area for grate area | 11,858 |
| Power L1 | 5148 |
| Power MT | 396.00 |