Data from Ed. Gobert, "German [44284], English Mechanic and World of Science, Volume 33, No 855 (12 August 1881), p. 553.
Locobase can't tie this locomotive to a particular class. English Mechanic's Nottingham-based correspondent cited a report on the locomotive exhibits at the 1878 Paris Exposition, but noted that this particular engine was not exhibited. He noted that they worked the Berlin and Hannover expresses.
Design details included a Belpaire firebox and, unusually for "the general practice of German loco. [sic] engineers of putting the frames outside the wheels, they are here placed inside."
They were used to draw "the fastest trains of the German Empire (excepting the Coln [sic]-Minden line" in trains of first-class carriages and traveling the 159 miles (255 km) between Hanover and Berlin in 3 hours 39 minutes for a 70 kph (43.4 mph) average. 93 miles of the run rolled out without stopping.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 20233 |
| Railroad | Berlin-Hanover |
| Country | Germany |
| Whyte | 2-4-0 |
| Number in Class | |
| Road Numbers | |
| Gauge | Std |
| Number Built | |
| Builder | Borsig |
| Year | 1878 |
| Valve Gear | Allan |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.20 / 2.50 |
| Engine Wheelbase (ft / m) | 14.44 / 4.40 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.57 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | 65,477 / 29,700 |
| Tender Loaded Weight (lbs / kg) | 42,527 / 19,290 |
| Total Engine and Tender Weight (lbs / kg) | 108,004 / 48,990 |
| Tender Water Capacity (gals / ML) | 1980 / 7.50 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.30 / 3 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 72 / 1830 |
| Boiler Pressure (psi / kPa) | 113.10 / 780 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15.98" x 22.05" / 406x560 |
| Tractive Effort (lbs / kg) | 7518 / 3410.11 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 181 - 1.772" / 45 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12.14 / 3.70 |
| Firebox Area (sq ft / m2) | 65.66 / 6.10 |
| Grate Area (sq ft / m2) | |
| Evaporative Heating Surface (sq ft / m2) | 1076 / 100 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1076 / 100 |
| Evaporative Heating Surface/Cylinder Volume | 210.22 |
| 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 | 7426 |
| Power L1 | 3724 |
| Power MT | |