Works numbers were 1772-1777 in 1865, 2429-2431 in October 1869, 2643-2652, 2670-2679, 2733-2742 in 1871, 2883-2902 in 1872, 3009-3014 in May 1873, 3089-3098 later in 1873, 3308-3313 in 1874.
Engines of the "Bourbonaisse" type with a dummy frame that supported the outside top corner of the pistons. All six wheels had splashers, a tall firebox, steam dome well forward, and a tall stack with flared top.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Simplon |
| Locobase ID | 623 |
| Railroad | Coln-Minden |
| Country | Germany |
| Whyte | 0-6-0 |
| Number in Class | 71 |
| Road Numbers | |
| Gauge | Std |
| Number Built | 71 |
| Builder | Borsig |
| Year | 1865 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10.79 / 3.29 |
| Engine Wheelbase (ft / m) | 10.79 / 3.29 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 89,964 / 40,807 |
| Engine Weight (lbs / kg) | 89,964 / 40,807 |
| 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) | 50 / 25 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 53.90 / 1369 |
| Boiler Pressure (psi / kPa) | 117.50 / 810 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.9" x 24.02" / 480x610 |
| Tractive Effort (lbs / kg) | 15,899 / 7211.67 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.66 |
| 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) | 15.39 / 1.43 |
| Evaporative Heating Surface (sq ft / m2) | 1330 / 123.56 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1330 / 123.56 |
| Evaporative Heating Surface/Cylinder Volume | 170.52 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1808 |
| Same as above plus superheater percentage | 1808 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |