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Bavarian “Der Münchner” and A I
The one-off “Der Münchner” (“The one from Munich”) was the first locomotive to be built in Bavaria. It was ordered from Maffei for the initially privately operated line between Munich and Augsburg and later became the...
General
| Property | Bavarian “Der Münchner” and A I A I |
|---|---|
| Built | 1844-1845 |
| Manufacturers | Maffei, Esslingen, Meyer |
| Wheel arrangement | 2-2-2 (Jenny Lind) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Bavarian “Der Münchner” and A I A I |
|---|---|
| Length | 9.74 m |
| Service weight | 15 t |
| Adhesive weight | 7.5 t |
| Axle load | 7.5 t |
Boiler
| Property | Bavarian “Der Münchner” and A I A I |
|---|---|
| Grate area | 0.83 m² |
| Evaporative heating surface | 71 m² |
| Total heating surface | 71.0 m² |
Power plant
| Property | Bavarian “Der Münchner” and A I A I |
|---|---|
| Driver diameter | 1,524 mm |
| Boiler pressure | 6.3 bar |
| Expansion type | simple expansion |
| Cylinders | two, 318 x 559 mm |
Power
| Property | Bavarian “Der Münchner” and A I A I |
|---|---|
| Power source | steam |
| Indicated power | 75 kW (102 PS) |
| Top speed | 40 km/h |
| Starting effort | 19.9 kN |
Calculated values
| Property | Bavarian “Der Münchner” and A I A I |
|---|---|
| Factor of adhesion | 1 : 3.70 |
| Optimal speed | 23 km/h |
| Power-to-weight ratio | 5.0 kW/t |
| Adhesive weight/Total | 1 : 2.00 |
| Tractive force/Heating surface | 1 : 5.84 |
| Grate area/Heating surface | 1 : 85.54 |
