Data from "Tank Locomotive, The Hohenzollern Works Company, Dusseldorf, Engineers", The Engineer, Volume 50 (1 October 1880), p 244.
Even on such a small scale, designers like Gustav Lentz could reorganize the layout to tailor the locomotive to a certain set of requirements. In this case, the small side tank had a relatively long wheelbase made possible by placing the cylinders outside and between the coupled driving axles and turning the rear set of drivers. Engineer's reporter conceded that "an exceedingly steady running engine is thus made."
(Lentz was awarded patents for his mid-engine cylinder layout in Germany (August 2, 1879), Belgium (August 27,1879), Denmark (March 16, 1880), France (August 28, '1879), Great Britain (August 30, 1879), Italy (September 30, 1879), Sweden (October 4, 1879), Austro-Hungary (December 31, 1879), and the United States (Patent 231337 A--17 August 1880.)
Lentz's plan was to offer the locomotive and up to three specially designed carriages for secondary and branch line work. Only three crew--driver, stoker, and conductor--would be required as all three carriages would have a central aisle.
Apparently the idea appealed to some Prussian railways. Wikipedia lists the following railways, the number of T1 locomotives they bought and the dates:
Berlin-Hamburger Eisenbahn: four T1, SCHILDHORN to SACHSENWALD, 1880
Holsteinische Marschbahn: 2 T1, KRONPRINZENKOOG und FRIEDRICHSKOOG, 1880
Niederschlesisch-MSrkische Eisenbahn: 1 T1, Nr. 601, 1880
KED Bromberg: 2 T1, Nr. 803 und 804, 1881
KED Magdeburg: 2 T1, Nr. 865 und 866, 1881
Berlin-Stettiner Eisenbahn: 6 T1, Nr. A229 bis A234, 1881
Oberschlesische Eisenbahn: 3 T1, Nr. 622 bis 624, 1882
The data relate to the two Holsteiner locomotives. Some of the others had 300 x 420 mm cylinders, grate areas of 0.65 sq m, heating surface areas as high as 36.3 sq m, and loaded weights up to 26,000 kg.
The last of the 20 was retired in 1911.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | Kronprinzenkoog |
Locobase ID | 20235 |
Railroad | several |
Country | Germany |
Whyte | 0-4-0T |
Number in Class | 1 |
Road Numbers | |
Gauge | Std |
Number Built | 1 |
Builder | Hohenzollern |
Year | 1880 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 5.91 / 1.80 |
Engine Wheelbase (ft / m) | 5.91 / 1.80 |
Ratio of driving wheelbase to overall engine wheelbase | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 5.91 / 1.80 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | / 7150 |
Weight on Drivers (lbs / kg) | 32,187 / 14,600 |
Engine Weight (lbs / kg) | 32,187 / 14,600 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 528 / 2 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 0.70 / 1 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 27 / 13.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 39.40 / 1000 |
Boiler Pressure (psi / kPa) | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 8.66" x 13.78" / 220x350 |
Tractive Effort (lbs / kg) | 3879 / 1759.49 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 8.30 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 76 - 1.378" / 35 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 5.91 / 1.80 |
Firebox Area (sq ft / m2) | 21.53 / 2 |
Grate Area (sq ft / m2) | 4.31 / 0.40 |
Evaporative Heating Surface (sq ft / m2) | 187 / 17.40 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 187 / 17.40 |
Evaporative Heating Surface/Cylinder Volume | 199.06 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 750 |
Same as above plus superheater percentage | 750 |
Same as above but substitute firebox area for grate area | 3746 |
Power L1 | 3584 |
Power MT | 490.97 |