Data from Christian Lindecke data from [] (14 November 2004) and Gustav Reder, The World of Steam Locomotives (1974), pl 226. See also Wikipedia's T0 entry at[], last accessed 6 May 2018.
Reder explains that these little "tankengines" were the first von Borries compounds in Germany and practically the first anywhere. August von Borries tested his two-cylinder compound layout in two of the four locomotives produced for "light omnibus trains" (as Reder translates the phrase) that operated between Hanover and Kreiensen and Northeim and Ottbergen.
Reder reproduces a photograph, which shows a trial horse resembling, more than almost any other steam locomotive design, a truck. The leading wheels had almost the same diameter as the driver set. A large cab-and-baggage-shack combination took up half the locomotive's length with the drivers located behind the footplate. A very tall and thin stack sent the exhaust high enough to clear the tall carriages.
Von Borries' principal innovation was an automatic starting valve that let live steam into the LP cylinder until moving the regulator lever slid the 1/2" auxiliary port shut.
Comparing the compound's economy with that of the simple-expansion pair credited the former with a 16% increase in fuel savings. The two baggage vans remained in service until 1897 and 1900.
See Locobase 20241 for the coupe version sans baggage compartment.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | T0 |
| Locobase ID | 6340 |
| Railroad | Prussian State |
| Country | Prussia |
| Whyte | 2-2-0T |
| Number in Class | 2 |
| Road Numbers | 83-84 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Ferdinand Schichau |
| Year | 1880 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 13.12 / 4 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 13.12 / 4 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 21,385 / 9700 |
| Weight on Drivers (lbs / kg) | 21,385 / 9700 |
| Engine Weight (lbs / kg) | 40,014 / 18,150 |
| 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) | 36 / 18 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44.50 / 1130 |
| Boiler Pressure (psi / kPa) | 174 / 1200 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 7.87" x 15.75" / 200x400 (1) |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 11.81" x 15.75" / 300x400 (1) |
| Tractive Effort (lbs / kg) | 2245 / 1018.32 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 9.53 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 27.99 / 2.60 |
| Grate Area (sq ft / m2) | 5.81 / 0.54 |
| Evaporative Heating Surface (sq ft / m2) | 245 / 22.79 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 245 / 22.79 |
| Evaporative Heating Surface/Cylinder Volume | 552.57 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1011 |
| Same as above plus superheater percentage | 1011 |
| Same as above but substitute firebox area for grate area | 4870 |
| Power L1 | 4975 |
| Power MT | 512.88 |