Data from "Baureihe 75 6682-6687" on Albert Gieseler's Dampfmaschinen und Lokomotiven website at [], last accessed 4 September 2023; and "ELNA 7" in Wikipedia at [
], last accessed 28 August 2023. See also "Kleinbahnabteilung des Provinzialverbandes Sachsen" in Wikipedia at [
], last accessed 4 September 2023. This latter source provides links to all the standard-gauge kleinbahns in Saxony. Henschel works numbers were 24751-24752 25928 in 1940, 25991 in 1941; 26459, 26499 in 1942.
Principal Dimensions by Steve Llanso of Sweat House Media | |
---|---|
Class | Elna type 7 |
Locobase ID | 21153 |
Railroad | Provinzialverband Sachsen (Saxony Provincial Assoc) |
Country | Germany |
Whyte | 2-6-2T |
Number in Class | 6 |
Road Numbers | 401-406/BR 75 6682-6687 |
Gauge | Std |
Number Built | 6 |
Builder | several |
Year | 1940 |
Valve Gear | Heusinger |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 19.69 / 6 |
Engine Wheelbase (ft / m) | 24.93 / 7.60 |
Ratio of driving wheelbase to overall engine wheelbase | 0.79 |
Overall Wheelbase (engine & tender) (ft / m) | 24.93 / 7.60 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 31,085 / 14,100 |
Weight on Drivers (lbs / kg) | 91,712 / 41,600 |
Engine Weight (lbs / kg) | 142,418 / 64,600 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 142,418 / 64,600 |
Tender Water Capacity (gals / ML) | 1848 / 7 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.80 / 2.50 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 51 / 25.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 47.20 / 1199 |
Boiler Pressure (psi / kPa) | 232.10 / 16 |
High Pressure Cylinders (dia x stroke) (in / mm) | 18.9" x 21.65" / 480x550 |
Tractive Effort (lbs / kg) | 32,325 / 14662.39 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 2.84 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 84 - 1.772" / 45 |
Flues (number - dia) (in / mm) | 41 - 4.252" / 108 |
Flue/Tube length (ft / m) | 12.47 / 3.80 |
Firebox Area (sq ft / m2) | 103.33 / 9.60 |
Grate Area (sq ft / m2) | 30.14 / 2.80 |
Evaporative Heating Surface (sq ft / m2) | 1158 / 107.60 |
Superheating Surface (sq ft / m2) | 459 / 42.60 |
Combined Heating Surface (sq ft / m2) | 1617 / 150.20 |
Evaporative Heating Surface/Cylinder Volume | 164.72 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 6995 |
Same as above plus superheater percentage | 8954 |
Same as above but substitute firebox area for grate area | 30,698 |
Power L1 | 15,079 |
Power MT | 1087.43 |