Deutsche Bundesbahn 2-8-4 Locomotives in Germany
Class Details by Steve Llanso of Sweat House Media
Class BR 65 (Locobase 2461)
Data from [
] (June 2002), supplemented by [], last accessed 13 May 2011.
Sturdy mixed-traffic locomotives with Krauss-Helmholz trucks that were the last new steam locomotive design to appear in West Germany.
[] (a German steam locomotive parts supplier) gives the normal steaming capacity as 9,000 kg/hr. They were rated as capable of hauling a 440-short ton passenger train up a 2% grade at 80 kph.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | BR 65 |
| Locobase ID | 2461 |
| Railroad | Deutsche Bundesbahn |
| Country | Germany |
| Whyte | 2-8-4T |
| Number in Class | 18 |
| Road Numbers | BR 65 001-BR 65 018 |
| Gauge | Std |
| Number Built | 18 |
| Builder | Krauss Maffei |
| Year | 1951 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 17.22 / 5.25 |
| Engine Wheelbase (ft / m) | 39.29 / 11.97 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.44 |
| Overall Wheelbase (engine & tender) (ft / m) | 39.29 / 11.97 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 37,258 / 16,900 |
| Weight on Drivers (lbs / kg) | 149,032 / 67,600 |
| Engine Weight (lbs / kg) | 237,217 / 107,600 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 3696 / 14 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.30 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 62 / 31 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 59.10 / 1500 |
| Boiler Pressure (psi / kPa) | 203.10 / 1400 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 22.44" x 25.98" / 570x660 |
| Tractive Effort (lbs / kg) | 38,214 / 17333.60 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.90 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 124 - 1.732" / 44 |
| Flues (number - dia) (in / mm) | 46 - 4.646" / 118 |
| Flue/Tube length (ft / m) | 13.12 / 4 |
| Firebox Area (sq ft / m2) | 159.25 / 14.80 |
| Grate Area (sq ft / m2) | 28.73 / 2.67 |
| Evaporative Heating Surface (sq ft / m2) | 1495 / 138.93 |
| Superheating Surface (sq ft / m2) | 677 / 62.90 |
| Combined Heating Surface (sq ft / m2) | 2172 / 201.83 |
| Evaporative Heating Surface/Cylinder Volume | 125.71 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5835 |
| Same as above plus superheater percentage | 7644 |
| Same as above but substitute firebox area for grate area | 42,370 |
| Power L1 | 14,104 |
| Power MT | 834.56 |